Relevant bibliographies by topics / Zirkon

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Academic literature on the topic 'Zirkon'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Zirkon"

1

Poernomo, Herry, Dwi Biyantoro, and Maria Veronica Purwani. "Kajian Konsep Teknologi Pengolahan Pasir Zirkon Lokal yang Mengandung Monasit, Senotim dan Ilmenit." EKSPLORIUM 37, no. 2 (December 19, 2016): 73. http://dx.doi.org/10.17146/eksplorium.2016.37.2.3054.

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ABSTRAKKeberadaan zirkon (ZrSiO4) di alam kebanyakan berasosiasi dengan beberapa senyawa oksida berharga (SOB) seperti TiO2 dan oksida logam tanah jarang atau rare earth oxides (REO). Keterdapatan mineral alam di Indonesia yang mengandung zirkonium (Zr) dan REO tersebar di 13 wilayah mulai dari Provinsi Aceh sampai Papua Barat. Berdasarkan hal tersebut, maka tujuan penelitian adalah melakukan kajian integrasi teknologi pengolahan pasir zirkon lokal yang mengandung TiO2 dan REO. Penelitian dilakukan dengan menganalisis kandungan SOB dalam sampel pasir zirkon dari daerah Landak dan Tumbang Titi Kalimantan Barat serta Bangka menggunakan XRF. Berdasarkan kandungan SOB dalam pasir zirkon tersebut dapat diprediksi bahwa pasir zirkon dari daerah Landak dan Tumbang Titi Kalimantan Barat serta Bangka mengandung mineral zirkon (ZrSiO4), ilmenit (FeTiO3), monasit (LREE, Th)PO4, dan senotim (HREE, Y, Th)PO4. Berbasis jenis mineral tersebut diperoleh hasil kajian berupa diagram alir proses konsep teknologi konsentrat zirkon menjadi ZrO2 (zirkonia) dan ZrOCl2.8H2O (zirkonium oksiklorida) derajat industri serta zirkonia dan zirconium chemicals derajat nuklir, ilmenit menjadi TiO2, monasit menjadi Nd2O3 dan konsentrat Th(OH)4, senotim menjadi Y2O3, Gd2O3 dan konsentrat Th(OH)4 dalam satu kawasan pilot plant atau pabrik yang terintegrasi. Hasil kajian disimpulkan bahwa konsep pengolahan pasir zirkon lokal yang mengandung monasit, senotim, dan ilmenit dapat dilakukan secara terintegrasi dalam satu kawasan pabrik dengan hasil multi produk. Jika hal tersebut dapat direalisasikan di Indonesia dengan tambahan sistem pengolahan air limbah terpadu, maka selain aman bagi lingkungan juga dapat menghemat biaya produksi dan memberikan nilai tambah ekonomi bagi para pemegang izin usaha pertambangan zirkon. ABSTRACTThe existence of zircon (ZrSiO4) in the nature is mostly associated with some of the valuable oxide compounds (VOC), such as TiO2 and rare earth oxides (REO). The existence of natural minerals in Indonesia containing zirconium (Zr) and REO lies in 13 regions, ranging from Aceh to West Papua province. Based on those aforementioned aspects, the goal of this research is to conduct the study of integrated technology of local zircon sand processing containing TiO2 and REO. The study was conducted by analyzing the content of VOC in zircon sand samples from the areas of Landak and Tumbang Titi West Kalimantan and Bangka by using XRF. Based on the content of VOC in this zircon sand, it can be predicted that the zircon sand from the area of Landak and Tumbang Titi West Kalimantan and Bangka contains mineral zircon (ZrSiO4), ilmenite (FeTiO3), monazite (LREE, Th)PO4, and xenotime (HREE, Th)PO4. Based on these types of mineral, the flow chart of beneficiation technology process to increase the concentration of each mineral and the flow chart of zircon concentrate process into ZrO2(zirconia) and ZrOCl2.8H2O (zirconium oxychloride) industrial grade and zirconia and zirconium chemicals nuclear grade, ilmenite into TiO2, monazite into Nd2O3, and Th(OH)4 concentrate, xenotime into Y2O3, Gd2O3, and Th(OH)4 concentrate are obtained in one area of pilot plant or an integrated factory. The results of the study concluded that the concept of local processing of zircon sands containing monazite, xenotime, and ilmenite can be either integrated in the region with the results of multi-product plant. If it can be realized in Indonesia with the addition of an integrated waste water treatment system, then in addition to safe for the environment can also save on production costs and give economic added value for shareholders zircon mining permit
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2

Sajima, Sajima. "Pelindian Natrium Zirkonat Menggunakan Asam Klorida Secara Catu." EKSPLORIUM 39, no. 1 (July 10, 2018): 67. http://dx.doi.org/10.17146/eksplorium.2018.39.1.4369.

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Penelitian tentang teknologi pengolahan zircon terus dilakukan untuk mengikuti kebutuhan industri pasar. Pengolahan natrium zirkonat dengan pelindian menggunakan asam klorida sebagai pelarut telah dilkukan. Penelitian ini bertujuan mempelajari pengaruh ukuran butir, temperatur, dan kecepatan pengadukan terhadap zirkon terambil. Penelitian dilakukan dengan memasukkan pelarut (asam klorida 4 N) ke dalam reaktor, kemudian pelarut tersebut dipanaskan sambil diaduk. Umpan dengan ukuran butir tertentu dimasukkan ke dalam reaktor. Kondisi temperatur dan kecepatan pengadukan dijaga tetap. Setelah kondisi operasi tercapai, proses dihentikan kemudian disaring. Hasil penelitian dengan analisis XRF menunjukkan bahwa kondisi proses optimum dicapai pada ukuran butir 90 µm, temperatur 80 oC dan kecepatan pengadukan 200 rpm. Pada kondisi tersebut zirkon terambil sebesar 84.50 %. Research on zircone processing technology has been continued to follow industrial market needed. Treatment of sodium zirconate with leaching process using hydrochloric acid as solvent has been conducted. The aim of the study is to evaluate the effect of grain size, temperature, and speed of stirring on the extracted zircon. The research starting with introduced the solvent (chloride acid 4 N) into the reactor, then heated while stirring. The feed with a certain grain size was introduced into the reactor. The temperature and stirring conditions were kept steady. Once the operating conditions are reached, the process is stopped and then filtered. The results with XRF analysis showed that the optimum process conditions were achieved on 90 μm grain size, the temperature of 80oC, and stirring speed of 200 rpm. The amount of zircon that taken out were 84.50% on this conditions.
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Kurniawan, Zaldy, Muhammad Subhan, and Ilham Ary Wahyudie. "APLIKASI RESPONSE SURFACE METHOD DALAM OPTIMASI PROSES THERMAL TREATMENT PASIR ZIRKON." Machine : Jurnal Teknik Mesin 4, no. 1 (January 2, 2018): 1–5. http://dx.doi.org/10.33019/jm.v4i1.445.

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Abstrak Zirconia (ZrO2) merupakan material keramik yang banyak digunakan di industri. Pasir zirkon (ZrSiO4) merupakan salah satu sumber zirkonia. Produksi zirkonia dari pasir zirkon dapat dilakukan dengan proses perlakuan panas atau perlakuan kimia dengan tujuan memecah ikatan antara ZrO2 dan SiO2. Pada penelitian ini Response Surface Methodology (RSM) diaplikasikan untuk menentukan nilai optimal persentase ZrO2 dari proses dekomposisi pasir zirkon melalui proses perlakuan panas. Sampel yang disiapkan sebanyak 13 variasi dengan 3 replikasi. Analisis hasil percobaan didapatkan Eigen value dengan nilai –0,146262 (X1) dan 0,172908 (X2). Hal ini menunjukkan bahwa kombinasi temperatur dan waktu penahanan tidak teridentifikasi optimum pada satu titik saja namun tersebar di seluruh daerah saddle point.
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4

Annisa Ummaradiah, Maulana Yusuf, and Mukiat. "POTENSI INVESTASI PENINGKATAN NILAI TAMBAH MINERAL IKUTAN TIMAH DI KEPULAUAN BANGKA BELITUNG." Jurnal Pertambangan 4, no. 2 (May 31, 2020): 98–107. http://dx.doi.org/10.36706/jp.v4i2.469.

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Mineral timah mengandung mineral ikutan berharga apabila dilakukan pengolahan lebih lanjut. Menurut Peraturan Menteri Nomor 25 tahun 2018 mineral ikutan harus dilakukan pengolahan dan pemurnian di dalam negeri. Tujuan penelitian ini adalah untuk menganalisis potensi, arah peningkatan, dan kelayakan inivestasi pada peningkatan nilai tambah mineral ikutan timah. Analisis investasi mineral ikutan timah dilakukan dengan menggunakan metode evaluasi ekonomi berupa NPV yang menunjukkan kelayakan bila bernilai positif, IRR dengan menggunakan suku bunga acuan 10% dengan kelayakan bila menghasilkan IRR diatas 10%, payback period yang ditunjukkan dengan masa pengembalian kurang dari umur proyek, dan PI yang menunjukkan kelayakan bila diatas 1. Mineral ikutan timah yang akan dilakukan peningkatan nilai tambah adalah monasit, zirkon, dan ilmenit. Hasil pengolahan mineral ikutan timah pada penelitian ini yaitu monasit menjadi lanthanum oksida dan cerium oksida, zirkon menjadi micronized zircon, dan ilmenit menjadi titanium dioksida. Penelitian menunjukkan mineral ikutan layak diadakan investasi dengan nilai NPV monasit Rp14.456.271.847; NPV zirkon Rp59.412.809.669; dan NPV ilmenit Rp74.697.631.175. IRR monasit 31,60%; IRR zirkon 37,49%; dan IRR ilmenit 34,59%. Payback period monasit selama 2,67 tahun, zirkon selama 1,28 tahun, dan ilmenit 2,59 tahun. PI pengolahan mineral ikutan memiliki nilai di atas 1 dengan nilai PI monasit sebesar 1,70; zirkon sebesar 1,84; dan ilmenit sebesar 1,84.
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Sajima, Samin, Supriyanto C,. "SINTESIS DAN SERTIFIKASI BAHAN ACUAN BERSERTIFIKAT (CRM) ZIRKONIA HASIL OLAH PASIR ZIRKON." GANENDRA Majalah IPTEK Nuklir 19, no. 1 (January 4, 2016): 1. http://dx.doi.org/10.17146/gnd.2016.19.1.2778.

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ABSTRAK SINTESIS DAN SERTIFIKASI BAHAN ACUAN BERSERTIFIKAT (CRM) ZIRKONIA HASIL OLAH PASIR ZIRKON. Sintesis dan sertifikasi bahan acuan bersertifikat (CRM) zirkonia hasil olah pasir zirkon perlu dilakukan untuk mendukung kegiatan pilot plant pembuatan zirkonia di PSTA-BATAN. Sintesis dan sertifikasi CRM zirkonia dilakukan menggunakan bahan baku zirkonium oksid klorida hasil olah pasir zirkon Kalimantan. Zirkonium oksid klorida dilarutkan dengan aquadest (1:10), ditambah ammonia pada pH 10, maka terbentuk endapan zirkonium hidroksida. Zirkonium hidroksida dipanaskan pada suhu 110 oC dan dilakukan kalsinasi pada suhu 900 oC, sehingga diperoleh zirkonia. Zirkonia dikeringkan pada suhu 110 oC, digerus dan diayak sampai diperoleh ukuran butir lolos 200 mesh. Serbuk zirkonia dihomogenkan, kemudian dilakukan uji homogenasi, uji stabilisasi, uji karakterisasi dan uji kadar air. Pada evaluasi data diperoleh kandidat CRM zirkonia sudah homogen, stabil,.mengandung mineral baddeleyite yang monoklin dan kadar air lebih kecil 1 %. Disimpulkan serbuk zirkonia sudah memenuhi syarat fisik sebagai CRM. Sertifikat hasil uji parameter dalam CRM zirkonia dari 7 laboratorium terakreditasi dengan metode statistik diperoleh 9 oksida, adalah ZrO2 : (95,422± 0,027) % ; HfO2 : (1,443 ± 0,004) % ; SiO2 : (0,535 ± 0,002) % ; Al2O3 : (0,362 ± 0,012) %; Fe2O3 : (0,028 ± 0,003) % ; TiO2 : (0,026 ± 0,001) %; Na2O : (0,262 ± 0,026) %; Nd2O3 : (0,0367± 0,007) %; CeO2 : (0,131 ± 0,013) %. Sertifikasi ini tertelusur ke BCS-CRM No. 358 zirconia buatan BAS-Perancis.
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Ngadenin, Ngadenin, Kurnia Setiawan Widana, and Adhika Junara Karunianto. "Studi Keterdapatan Torium Pada Endapan Laterit Bauksit di Pulau Singkep Dalam Rangka Pengembangan Eksplorasi Torium di Wilayah Granit Jalur Timah." EKSPLORIUM 39, no. 1 (July 10, 2018): 17. http://dx.doi.org/10.17146/eksplorium.2018.39.1.4258.

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Eksplorasi torium di wilayah granit jalur timah pada lima tahun terakhir ditargetkan pada keterdapatan torium di cebakan timah primer maupun sekunder. Pulau Singkep adalah bagian dari Granit Jalur Timah, yang potensial terhadap keberadaan torium, sebagai cebakan primer maupun sekunder. Penelitian ini bertujuan untuk mengetahui karakteristik keterdapatan torium pada laterit bauksit menyangkut kadar torium dan kaitannya dengan keterdapatan mineral radioaktif dan kandungan cerium (Ce), lantanum (La), itrium (Y), dan zirkon (Zr) pada laterit bauksit. Data yang diperoleh dari penelitian ini akan digunakan sebagai bahan evaluasi untuk pengembangan eksplorasi torium pada cebakan laterit bauksit di Indonesia. Metode yang digunakan adalah pemetaan geologi, pengukuran kadar torium, dan pengambilan sampel konsentrat dulang untuk analisis mineral butir dan analisis kadar Ce, La, Y, dan Zr. Litologi yang menyusun daerah penelitian terdiri atas granit lapuk yang telah terubah menjadi laterit bauksit dengan kadar torium berkisar antara 25,9 hingga 177,8 ppm eTh. Konsentrat hasil pendulangan adalah konsentrat zirkon-ilmenit dengan kandungan mineral radioaktif terdiri dari zirkon, monasit, dan anatas. Kadar lantanum pada konsentrat zirkon-ilmenit adalah 0–412 ppm, cerium 0–80 ppm, itrium 27–82 ppm, dan zirkon 9.420–100.000 ppm. Keterdapatan torium pada endapan laterit bauksit di Pulau Singkep berhubungan erat dengan keterdapatan mineral zirkon, monasit, dan anatas. Karakterisrik keterdapatan torium pada endapan laterit bauksit mempunyai kemiripan dengan karakteristik keterdapatan torium pada cebakan timah primer dan sekunder. The thorium exploration in the last five years in the granite tin belt region is targeted at thorium availability in primary and secondary tin deposits. Singkep island is the part of granite tin belt which potential for thorium occurences either primer or secondary deposits. The purpose of this study was to determine the characteristics of thorium availability in bauxite laterite deposits concerning thorium content and its relation to the availability of radioactive minerals and cerium (Ce), lanthanum (La), Yttrium (Y), and zircon (Zr) contents on the bauxite laterite deposit. The data obtained from this study will be used as an evaluation material for the development of thorium exploration in bauxite laterite deposits in Indonesia. The methods used are geological mapping, thorium concentration measurements, and sampling of pan concentrate for mineral grain analysis and analysis of Ce, La, Y, and Zr contens. The lithology of the study area was granite that had weathered and turned into bauxite laterite deposit with thorium content ranging from 25.9 to 177.8 ppm eTh. The concentrate of the repeating result is zircon-ilmenite concentrate with radioactive mineral content composed of zircon, monazite, and anatase. La concentration on zircon-ilmenite concentrate is 0–412 ppm, Ce is 0–80 ppm, Y is 27–82 ppm and zircon is 9,420–100,000 ppm. Avaibility of thorium at the bauxite laterite deposit on Singkep Island is closely related to the zircon, monazite, and anatase minerals. Characteristics of thorium availability in the bauxite laterite deposit are similar to the thorium characteristics of the primary and secondary tin deposits.
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Suseno, Triswan. "Analisis biaya pengolahan pasir zirkon (ZrSiO4) menjadi pasir zirkon berkadar ZrO2 ≥65,5 % dan micronized zircon." Jurnal Teknologi Mineral dan Batubara 12, no. 3 (January 19, 2017): 179–94. http://dx.doi.org/10.30556/jtmb.vol12.no3.2016.137.

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Budiharjo, Triyono, and Muzakky Akhmad Mutawali. "KEHILANGAN H2O SELAMA REAKSI PELINDIAN MINERAL ZIRCON DENGAN NaOH DI DALAM FURNACE." GANENDRA Majalah IPTEK Nuklir 22, no. 1 (May 14, 2019): 39. http://dx.doi.org/10.17146/gnd.2019.22.1.4625.

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AbstrakKEHILANGAN H2O SELAMA REAKSI PELINDIAN MINERAL ZIRCON DENGAN NaOH DI DALAM FURNACE. Telah dilakukan prediksi jumlah kehilangan H2O selama proses peleburan mineral zirkon dengan NaOH di dalam furnace. Proses awal pemurnian zirkonium dimulai dari pelindian mineral zirkon dengan NaOH. Selama proses peleburan akan dikeluarkan H2O yang diperkirakan akan membawa Rn-222 dan Rn-220 yang berbahaya bagi pekerja radiasi. Maka tujuan dari pelitian ini adalah melakukan prediksi jumlah kehilangan H2O pada reaksi pelindian mineral zirkon dengan NaOH di dalam furnace dan keluar ke udara. Kehilangan H2O dihitung berdasarkan mol sebelum reaksi peleburan dikurangi dengan sesudah reaksi peleburan. Hasil pengamatan menunjukkan bahwa semakin tinggi temperatur dan lama waktu kontak, kehilangan mole H2O akan semakin besar. Besarnya kehilangan mole H2O akan dipengaruhi oleh mole rasio ZrSiO4/NaOH. Kecuali pada mol rasio ZrSiO4/NaOH (1:4), mol kehilangan H2O berharga sama dengan mol rasio ZrSiO4/NaOH (1:2). Kehilangan mol H2O dicapai pada mol rasio ZrSiO4/NaOH (1:8), pada temperatur 950 ˚C dan waktu kontak 60 menit sebesar 0,024 mole/gr. Pada kondisi tersebut sisa fase kristal ZrSiO4 tidak terbentuk, tetapi sampel mengandung sisa NaOH yang tidak bereaksi dan bersifat pasta.
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Ngadenin, Ngadenin, and Adhika Junara Karunianto. "Identifikasi Keterdapatan Mineral Radioaktif pada Granit Muncung Sebagai Tahap Awal untuk Penilaian Prospek Uranium dan Thorium di Pulau Singkep." EKSPLORIUM 37, no. 2 (December 19, 2016): 63. http://dx.doi.org/10.17146/eksplorium.2016.37.2.3101.

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ABSTRAKPulau Singkep adalah bagian dari jalur timah Asia Tenggara, yang salah satu litologinya tersusun oleh granit Muncung. Keberadaan granit tersebut memungkinkan adanya cebakan mineral radioaktif yang prospek terhadap uranium dan thorium. Penelitian ini bertujuan untuk mengidentifikasi keterdapatan mineral radioaktif pada granit Muncung sebagai tahap awal untuk penilaian prospek uranium dan thorium di Pulau Singkep. Metoda yang digunakan adalah pengambilan sampel batuan granit, analisis petrografi sampel granit Muncung, analisis kadar uranium dan thorium serta analisis butir sampel konsentrat dulang yang diambil di wilayah granit Muncung. Mineral radioaktif pada granit Muncung adalah monasit dan zirkon sedangkan pada konsentrat dulang adalah monasit, zirkon, dan senotim. Persentase monasit dalam konsentrat dulang adalah 1,1 – 59,53 %, zirkon 0,68 –55,07 % dan senotim 0,39 – 3,54 %. Kadar uranium dalam konsentrat dulang adalah 30 – 1.346 ppm dan kadar thorium 557 – 13.200 ppm. Disimpulkan bahwa daerah di sekitar granit Muncung dianggap cukup prospek uranium dan thorium dan dapat dikembangkan ke tahapan eksplorasi lebih detail. ABSTRACTSingkep Island is part of Southeast Asia tin belt, which is one of the lithologies, composed of granite Muncung. Existence of granite allows formed deposits of radioactive minerals that prospect of the uranium and thorium. This research goal is to identify radioactive minerals occurrences on granit Muncung in the initial stage for prospect assessment of uranium and thorium in Singkep Island. The Methodologies are granite sampling, petrography analysis of Muncung granite samples, uranium and thorium content analysis and grain size analysis of pan concentrate samples. Radioactive minerals in Muncung granite are monazite and zircon, while in pan concentrate they are monazite, zircon, and xenotime. The percentage of monazite, zircon, and xenotime in the pan concentrate are 1.1–59.53 %, 0.68–55.07 %, and 0.3–3.54 % respectively. The uranium and thorium content in the pan concentrate are 30–1,346 ppm and 557–13,200 ppm respectively. It concluded that the area around the Muncung granite considered prospect for uranium and thorium, and possibly developed into more detailed exploration stage.
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Sukirno, Sukirno, Sri Murniasih, Rosidi Rosidi, and Samin Samin. "Evaluasi Ketidakpastian Pengukuran Multi-Unsur Dalam Mineral Zirkon Dengan Metode Analisis Aktivasi Neutron." EKSPLORIUM 36, no. 1 (May 30, 2015): 45. http://dx.doi.org/10.17146/eksplorium.2015.36.1.2770.

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Evaluasi analisis multi-unsur yang disertai perhitungan ketidakpastian unsur pada mineral zirkon yang berasal dari Sampit, Kalimantan Tengah dan Pulau Bangka telah dilakukan dengan metode Analisis Aktivasi Neutron (AAN). Tujuan penelitian ini adalah menentukan komposisi dan nilai ketidakpastian multi-unsur dalam mineral zirkon untuk memenuhi persyaratan ISO/IEC guide 17025-2008 yang telah diterapkan pada laboratorium AAN. Analisis menggunakan spektrometri gamma dengan detektor HPGe menghasilkan 21 unsur terdeteksi yang dibagi menjadi tiga kelompok (mayor, minor, dan kelumit). Evaluasi ketidakpastian pengukuran perlu dilakukan untuk meningkatkan kualitas dan tingkat kepercayaan hasil analisis. Hasil pengujian tidak akan bermakna tanpa disertai perhitungan ketidakpastian. Oleh karena itu, dilakukan evaluasi nilai perhitungan ketidakpastian pada hasil analisis semua unsur yang terkandung dalam mineral zirkon. Hasil analisis kuantitatif tertinggi adalah zirkonium (Zr) dengan konsentrasi 38,986% dan mempunyai nilai ketidakpastian 0,33% sehingga nilai konsentrasi nyata adalah 38,986±0,33%, dalam oksida (ZrO2) mempunyai konsentrasi 52,661±0,45%. Unsur stibium (Sb) adalah unsur yang terdeteksi paling rendah dengan nilai konsentrasi dan ketidakpastian adalah 7±0,3 μg/g sedangkan dalam oksida (Sb2O3) mempunyai konsentrasi 17±0,9 μg/g. Komposisi oksida dan bahan kimia dalam mineral pasir zirkon yang lebih signifikan berasal dari Sampit dengan kandungan ZrO2+HfO2 (53-55%), F2O3 (5-6%), TiO2 (13-14%), Al2O3 (1,5-2%) dan SiO2. Unsur Si (SiO2) tidak dapat ditentukan dengan metode AAN sebab tampang lintang Si sangat kecil. The evaluation of multi-elements analysis has been carried out with calculation of element uncertainy in the zircon mineral from Sampit (Central Kalimantan) dan Bangka has been evaluated by the Neutron Activation Analysis (NAA) method. The purpose of this research is determination of composition and value of multi-elements uncertainty in the mineral of zircon to fulfil the requirements of ISO/IEC guide 17025-2008 that applied at NAA laboratory. The result of analysis using gamma spectrometry with a HPGe detector showed of 21 detected elements, divided into three groups (major, minor, and trace). Evaluation of uncertainty estimation should be done to increase quality and confidence rate of analysis results. The result of testing are not mean without calculation of uncertainty. Therefore, it was assessed the uncertainty measurement of all elements analysis in zircon mineral. The results of quantitative analysis is Zr with the highest concentration value of 38.986% and value of uncertainty is 0.331% so that value of real concentration is 38.986 ± 0.331%. In the form of oxide (ZrO2) has concentration of 52.661±0.45%. Sb element is the lowest element detected with value of concentration and uncertainty is 7±0,3 µg/g. In the form of oxide (Sb2O3) has concentration is 17±0.9 µg/g. The oxide composition and the must important of chemicals in the zircon sand mineral more significant from Sampit which quantitative composition areZrO2+HfO2 (53-55%), F2O3 (5-6%), TiO2 (13-14%), Al2O3 (1.5-2%) and SiO2. Elements ofSi(SiO2) can not be determinedbyNAAmethodbecauseSi cross-sections is verysmall.
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Dissertations / Theses on the topic "Zirkon"

1

Vultier, Robert Eric. "Oxidations- und Kristallisationsverhalten amorpher Metall-Zirkon Legierungen /." [S.l.] : [s.n.], 1990. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=9361.

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Geisler-Wierwille, Thorsten. "U-Th-Gesamtblei-Datierung von Zirkonen mit Hilfe der Elektronenstrahl-Mikrosonde: Methodik und Anwendungsbeispiele polygenetische Zirkone aus dem Vånga-Granit in Südschweden sowie aus dem Hammer-Granit und einem Gneis vom Grundgebirge der dänischen Insel Bornholm /." [S.l. : s.n.], 1999. http://www.sub.uni-hamburg.de/disse/55/Disse.pdf.

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3

Seifert, Nicolle. "Mikrostruktur und mechanisches Verhalten von teilamorphen und kristallinen Materialien auf Zirkon-Basis." Dresden TUDpress, 2008. http://d-nb.info/991847989/04.

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Duwe, Stephanie [Verfasser]. "Recycling von Magnesium : Untersuchung thermodynamischer Grundlagen zum Verhalten von Nickel und Zirkon in Magnesium-Aluminium-Legierungen / Stephanie Duwe." Clausthal-Zellerfeld : Universitätsbibliothek Clausthal, 2015. http://d-nb.info/1078276714/34.

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Schulte-Mattler, Verena Claudia [Verfasser]. "Einfluss von fluoreszierendem und nicht fluoreszierendem Zirkon auf das optische Erscheinungsbild von Mukosa ; [kumulative Dissertation] / Verena Claudia Schulte-Mattler." Köln : Deutsche Zentralbibliothek für Medizin, 2015. http://d-nb.info/1079848029/34.

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Pfrengle, Andreas. "Mikrostrukturierung schwindungsfreier Oxidkeramiken." [S.l. : s.n.], 2008. http://nbn-resolving.de/urn:nbn:de:bsz:25-opus-55799.

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Guerrot, Catherine. "Archéen et Protérozoïque dans la chaîne hercynienne Ouest-européenne : géochimie isotopique Sr-Nd-Pb et géochronologie U-Pb sur zircons /." Rennes : Centre Armoricain d'étude structurale des socles, 1989. http://catalogue.bnf.fr/ark:/12148/cb35048785z.

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Gärtner, Andreas. "Geologic evolution of the Adrar Souttouf Massif (Moroccan Sahara) and its significance for continental-scaled plate reconstructions since the Mid Neoproterozoic." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2018. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-234103.

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Located in the south of the Moroccan Sahara, the Adrar Souttouf Massif is the northern continuation of the Mauritanides at the western margin of the West African Craton. The massif itself exhibits a complex polyphase geologic history and contains four geologically different, SSW-NNE trending main units named from west to east: Oued Togba, Sebkha Gezmayet, Dayet Lawda, Sebkha Matallah. They are thrusted over each other in thin-skinned nappes with local windows of the discordantly overlain Archaean Reguibat basement. The eastern margin of the massif is bordered by the Tiris and Tasiast-Tijirit areas of the Reguibat Shield as well as its (par-) autochthonous Palaeozoic cover sequence, termed Dhloat Ensour unit. More than 5.500 U-Th-Pb age determinations and over 1.000 Hf isotopic measurements on single zircon grains from igneous, metamorphic, and sedimentary rocks of all the massifs units and its vicinity have yet been obtained. Most of the zircons were studied with respect to their morphological features. This method improves the accuracy of provenance studies by detecting varying zircon morphologies in space and time. These data are accompanied by U-Th-Pb age determinations on apatite as well as rutile. Together, they allow proposing a model of the geologic evolution of this poorly mapped area for the last 635 Ma. A combination of the obtained data with extensive zircon age databases of the surrounding cratons and terranes facilitates continental-scaled palaeogeographic reconstructions. Regarding the geologic evolution of the Adrar Souttouf Massif, the assembly of the first units began prior to 635 Ma. Although containing all the major zircon age and Hf-isotope populations of the West African Craton as well as some Mesoproterozoic grains, the Sebkha Gezmayet unit lies to the west of the Dayet Lawda unit of oceanic island arc composition. Hence, the Sebkha Gezmayet unit must have been rifted away from the craton prior to the formation of the oceanic unit within the West African Neoproterozoic Ocean at about 635 Ma. Recently published Hf and zircon age data of this unit suggest that the island arc was derived from a juvenile mantle source. Subsequently, the accretion of precursors of the Oued Togba and Sebkha Gezmayet units as well as a partial obduction of the oceanic Dayet Lawda unit and the Neoproterozoic sediments of a foreland basin (Sebkha Matallah unit) onto the Reguibat Shield took place. Peak metamorphism in the obducted oceanic rocks was reached at about 605 Ma. Magmatism in the western units between 610 and 570 Ma suggests on-going tectonic activity. The Early and Middle Cambrian is characterised by the erosion of the Ediacaran orogen and deposition of thick sedimentary sequences at the Sebkha Matallah unit, which acted as foreland basin. These sediments show a mostly West African zircon record with only some Mesoproterozoic grains provided by the westernmost parts of the massif. Initial rifting of the Oued Togba and Sebkha Gezmayet units from the remaining areas presumably occurred during the Late Cambrian. Coeval granitoid intrusions occurred on both sides of the rift. The two rifted units were likely involved to the polyphased Appalachian orogenies, which is emphasised by Devonian magmatism. Thus, and with respect to the isotopic data, the Oued Togba unit is interpreted to be of Avalonia affinity, while the Sebkha Gezmayet unit can likely be linked to Meguma. The units which remained at the West African Craton underwent intense sediment recycling during the entire Ordovician to Devonian times. Final accretion of all units and formation of the current massif was achieved during the Variscan-Alleghanian orogeny. This was accompanied by magmatism in the Sebkha Gezmayet unit and intense metamorphism of the Reguibat basement, whose zircons often show lower discordia intercepts of Carboniferous or Permian age. The post-Variscan period is characterised by erosion of the orogen and subjacent alternating cycles of sedimentation and deflation. The Adrar Souttouf Massifs importance for palaeogeographic reconstructions is given by the striking differences in the zircon age and Hf-isotope record of its westernmost Oued Togba unit and the remaining area. The results obtained from the Oued Togba unit resemble the published data of the Avalonia type terranes including prominent Mesoproterozoic, Ediacaran-Early Cambrian, as well as Early Devonian age populations. Many Mesoproterozoic zircons, which are exotic for the West African Craton prior to 635 Ma, form a ca. 1.20 to 1.25 Ga age peak that is an excellent tracer for detrital provenance studies and source craton identification of the sedimentary rocks. This is also valid for some sedimentary samples that do not show ages younger than 700 Ma, but large quantities of Mesoproterozoic zircon. These rocks can be correlated to similar sediments in Mauritania and W-Avalonia and are thought to be of pre-pan-African", i.e. pre-Ediacaran or even pre-Cryogenian age. They may give direct insights to the source area in Early to Mid Neoproterozoic times. Accordingly, comparison with published data of Amazonia and Baltica, allows setting up new hypotheses for the pre-Ediacaran history of the Avalonian type terranes. Lacking of magmatism in Amazonia between ca. 1200 and ca. 1300 Ma favours Baltica as source craton for the Avalonian terranes and requires a new point of view for the Neoproterozoic palaeogeography.
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Carbonneau, Xavier Fantozzi Gilbert. "Etude des propriétés thermomécaniques de mullite zircone et de zircon." Villeurbanne : Doc'INSA, 1998. http://docinsa.insa-lyon.fr/these/pont.php?id=carbonneau.

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Carbonneau, Xavier. "Etude des propriétés thermomécaniques de mullite zircone et de zircon." Lyon, INSA, 1997. http://theses.insa-lyon.fr/publication/1997ISAL0105/these.pdf.

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Cette étude porte sur la caractérisation du comportement mécanique de mullite zircone et de zircon entre 1000 et l 300°C. Une caractérisation microstructurale fine des différentes nuances est tout d'abord réalisée, avec notamment de nombreuses observations en microscopie transmission. Ceci a pour but de mieux connaître la localisation et la composition de la phase vitreuse. La propagation des fissures à haute température est ensuite étudiée grâce à des essais de double torsion. La guérison des fissures observée au cours de ces essais est plus particulièrement étudiée dans le cas du zircon. Des mesures de spectrométrie mécanique ont aussi été réalisées pour mettre en évidence des mécanismes liés à la présence de phase vitreuse. Enfin une étude du comportement en fluage a été réalisée par des essais de flexion. Ces résultats sont complétées par une série d'essais sur des éprouvettes préalablement indentées ce qui permet de mieux comprendre le comportement à la rupture, et a montré l'existence d'un seuil dans le mode de propagation des fissures. Ces résultats ont pu être rapprochés de ceux obtenus en double torsion
The high temperature mechanical properties of mullite zirconia obtained by reaction sintering, and zircon have been studied. Numerous transmission electron microscopy observations have been conducted to obtain an accurate microstructural characterization, and a better knowledge of the glassy phase composition and localization. Crack propagation is then measured at high temperature using the double torsion technique. Crack healing observed during these tests is especially studied in the case of zircon. Internal friction measurements have also been conducted to try to characterize the glassy phase. In addition, the creep behavior has been studied using bending tests. These results are completed with others obtained on previously indented specimens to better understand the fracture behavior. A threshold has been observed in the crack propagation in zircon. These results are close to those obtained with the double torsion technique
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Books on the topic "Zirkon"

1

Arnold, Bożena. Zirkon, Zirkonium, Zirkonia - ähnliche Namen, verschiedene Materialien. Berlin, Heidelberg: Springer Berlin Heidelberg, 2019. http://dx.doi.org/10.1007/978-3-662-59579-4.

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Junaković, Svjetlan. Zirkus! Zirkus! Zürich: Bohem Press, 2002.

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European Conference on Thermochronology (2006 : Bremen, Germany), ed. Thermochronological methods: From palaeotemperature constraints to landscape evolution models. London: Geological Society, 2009.

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Gwosdz, W. Remarks on zircon. Zomba [Malawi]: Republic of Malawi, Ministry of Forestry and Natural Resources, Geological Survey Dept., 1992.

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Mikhaĭlovich, Dymkin Aleksandr, ed. T͡S︡irkon kak indikator geologicheskikh prot͡s︡essov. Moskva: "Nauka", 1986.

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Escoto, Rafael Ramírez. Pánik Zirkus. [Cádiz, Spain]: Fundación Municipal de Cultura, Ayuntamiento de Cádiz, 1999.

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Marʻī, Ibrāhīm Jamīl. Qaryat Zirʻīn. Bīr Zayt: Jāmiʻat Bīr Zayt, Markaz Dirāsat wa-Tawthīq al-Mujtamaʻ al-Filasṭīnī, 1994.

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Escoto, Rafael Ramírez. Pánik Zirkus. Cadiz: Fundación Municipal de Cultura, 1999.

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Volʹfson, F. I. (Fedor Iosifovich), ed. Metall zlatot︠s︡vetnogo kamni︠a︡. Moskva: "Nauka", 1989.

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Eric, Hill. Flecki im Zirkus. Wien: Österreichischer Bundesverlag, 1986.

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Book chapters on the topic "Zirkon"

1

Bechtel, H., W. Bulian, K. Bungardt, K. Gürs, U. Gürs, W. Helling, H. Kyri, et al. "Zirkon." In Landolt-Börnstein, 459–568. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-662-43292-1_1.

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Arnold, Bożena. "Zirkon – ein verbreitetes Mineral." In Zirkon, Zirkonium, Zirkonia - ähnliche Namen, verschiedene Materialien, 5–10. Berlin, Heidelberg: Springer Berlin Heidelberg, 2019. http://dx.doi.org/10.1007/978-3-662-59579-4_2.

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Arnold, Bożena. "Zirkon – ein echter Edelstein." In Zirkon, Zirkonium, Zirkonia - ähnliche Namen, verschiedene Materialien, 11–14. Berlin, Heidelberg: Springer Berlin Heidelberg, 2019. http://dx.doi.org/10.1007/978-3-662-59579-4_3.

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Arnold, Bożena. "Die ständige Verwechslung – eine Einführung." In Zirkon, Zirkonium, Zirkonia - ähnliche Namen, verschiedene Materialien, 1–4. Berlin, Heidelberg: Springer Berlin Heidelberg, 2019. http://dx.doi.org/10.1007/978-3-662-59579-4_1.

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Arnold, Bożena. "Zirkoniumoxid – ein vielseitiges Material." In Zirkon, Zirkonium, Zirkonia - ähnliche Namen, verschiedene Materialien, 55–56. Berlin, Heidelberg: Springer Berlin Heidelberg, 2019. http://dx.doi.org/10.1007/978-3-662-59579-4_10.

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Arnold, Bożena. "Natürliches Zirkoniumoxid." In Zirkon, Zirkonium, Zirkonia - ähnliche Namen, verschiedene Materialien, 57–59. Berlin, Heidelberg: Springer Berlin Heidelberg, 2019. http://dx.doi.org/10.1007/978-3-662-59579-4_11.

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Arnold, Bożena. "Künstliches Zirkoniumoxid." In Zirkon, Zirkonium, Zirkonia - ähnliche Namen, verschiedene Materialien, 61–68. Berlin, Heidelberg: Springer Berlin Heidelberg, 2019. http://dx.doi.org/10.1007/978-3-662-59579-4_12.

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Arnold, Bożena. "Die Kristallwelt des Zirkoniumoxids." In Zirkon, Zirkonium, Zirkonia - ähnliche Namen, verschiedene Materialien, 69–75. Berlin, Heidelberg: Springer Berlin Heidelberg, 2019. http://dx.doi.org/10.1007/978-3-662-59579-4_13.

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Arnold, Bożena. "Zirkoniumoxid-Werkstoffe." In Zirkon, Zirkonium, Zirkonia - ähnliche Namen, verschiedene Materialien, 77–87. Berlin, Heidelberg: Springer Berlin Heidelberg, 2019. http://dx.doi.org/10.1007/978-3-662-59579-4_14.

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Arnold, Bożena. "Zirkoniumoxid versus Aluminiumoxid." In Zirkon, Zirkonium, Zirkonia - ähnliche Namen, verschiedene Materialien, 89–95. Berlin, Heidelberg: Springer Berlin Heidelberg, 2019. http://dx.doi.org/10.1007/978-3-662-59579-4_15.

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Conference papers on the topic "Zirkon"

1

Darling, Robert S. "Felsic Mineral Inclusions in Zircon from the Port Leyden Nelsonite, Western Adirondack Highlands, New York: A Product of Magma Mixing?" In Northeastern GSA Section Meeting. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016ne-272695.

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The Port Leyden nelsonite is small magnetite-apatite-ilmenite ore body occurring in Mesoproterozoic metapelitic gneiss on the western margin of the Adirondack Highlands. It is unusual in that no compositionally adequate parent magma (e.g. jotunite or oxide-apatite gabbronorite) has been identified in the area (Darling and Florence, 1995).The nelsonite typically contains elevated levels of Zr (1400 to 2500 ppm) largely present in abundant modal zircon. The Zr abundances are considerably higher than normal levels of Zr solubility in non-peralkaline melts and suggests that some of the zircon modal fraction is inherited (Hanchar and Harrison, 2003).The zircon grains display both euhedral, oscillatory zoned cores (interpreted as igneous) and anhedral, irregular, compositionally homogeneous rims (interpreted as metamorphic or igneous). The oscillatory zoned cores contain small (2-10 micrometer), solid inclusions that have energy-dispersive X-ray spectra (EDS) consistent with quartz, K-feldspar, plagioclase, biotite, and apatite. Remarkably, no low-silica mafic mineral inclusions (e.g. orthopyroxene, clinopyroxene, olivine) were observed in zircon.Felsic mineral inclusions in zircon from an igneous rock that has mafic magma affinities provides further evidence that the included cores of zircons in the Port Leyden nelsonite are inherited. This unusual occurrence may be possible considering that the mafic igneous rocks described above are part of the bimodal anorthosite-mangerite-charnockite-granite (AMCG) magmatic complex in the Adirondacks (McLelland et al, 1988). It is conceivable that during magma mixing, zircon from granite or charnockite may have become incorporated into coeval jotunite or oxide-apatite gabbronorite. Subsequently, the latter magma experienced either unmixing (Philpotts, 1967) or crystal settling (Dymek and Owens, 2001) to produce the Port Leyden nelsonite.
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Gataulina G.G., G. G., and S. E. Pilipenko S.E. "Effect of biologically active substances on the pod formation of soybean plants in the Moscow region." In Растениеводство и луговодство. Тимирязевская сельскохозяйственная академия, 2020. http://dx.doi.org/10.26897/978-5-9675-1762-4-2020-48.

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The effect of biologically active substances Siliplant, Zircon and Epin-Extra on the formation of soybean productivity elements was studied in a field experiment carried out at the Field Experimental Station of the Russian State Agricultural University named after K.A. Timiryazev in 2020. The number of pods on average per plant increased in the variant Zircon by 17%, Siliplant and Epin-Extra by 9 and 11%, respectively. The number of pods on the main stable significantly increased by 9% compared to the control only when the plants were treated with Zircon. The number of pods on the lateral branches exceeded the control by 27 and 43% in the variants Epin-Extra and Zircon.
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Khor, K. A., and Y. Li. "Novel ZrO2-Mullite Composites Produced by Plasma Spraying." In ITSC 1998, edited by Christian Coddet. ASM International, 1998. http://dx.doi.org/10.31399/asm.cp.itsc1998p1233.

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Abstract Zirconia can induce enhanced fracture toughness to a number of ceramics when introduced as a reinforcement either in the form of particulates, dispersed phase or whiskers because of its unique tetragonal-monoclinic transformation. This paper presents the preparation of ZrO2 reinforced mullite by plasma spraying a mixture of zircon and alumina. The dissociation of zircon into zirconia and silica in a plasma flame is well-known. Pre-mixed powders of zircon and alumina are injected into a dc plasma jet. The plasma sprayed particles are collected in distilled water and analyzed. The results indicate that the plasma sprayed powders consist of zirconia, zircon and alumina. It was found that fine, mostly amorphous and chemically homogeneous composite powders can be obtained by ball milling and plasma spraying. Recrystallization of amorphous phases and formation of mullite occurred at about 1000 °C in plasma sprayed powders. This value is more than 500 °C lower than the formation of mullite in as-milled powders. Uniform coatings with good structural integrity were obtained by plasma spraying. The amount of amorphous phases was much higher in plasma sprayed coatings than in spheroidized powders, and the relative quantity of mullite in coatings after heat treatment is about 4 times as much as that obtained in the spheroidized powders.
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Li, Y., and K. A. Khor. "Plasma Spheroidized Alumina/Zircon Mixtures." In ITSC 2000, edited by Christopher C. Berndt. ASM International, 2000. http://dx.doi.org/10.31399/asm.cp.itsc2000p0871.

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Abstract The plasma-spray process is specified by the associated processing parameters, where these influence the properties of the resultant deposits. This article describes the preparation and processing of composite powders for use in thermal spraying by mixing high purity zircon and alumina powders. The spheroidized powder were obtained by high energy ball milling and rapid solidification from the molten state during plasma spraying. The article discusses the processes involved in spray drying and plasma spheroidization, describing thermal analysis and mullitization kinetics in the spheroidized alumina/zircon mixtures.
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Alexander, Ellen W., Casey A. Yamamoto-Hillman, Matthew Wielicki, and Mark Harrison. "UNDERSTANDING OXYGEN ISOTOPES OF ZIRCON INCLUSIONS: A CASE STUDY OF QUARTZ INCLUSIONS IN TIBETAN GRANITOID ZIRCONS." In GSA Annual Meeting in Phoenix, Arizona, USA - 2019. Geological Society of America, 2019. http://dx.doi.org/10.1130/abs/2019am-339224.

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Gold, D. ,. P. "New Tectonic Reconstructions of New Guinea Derived from Biostratigraphy and Geochronology." In Digital Technical Conference. Indonesian Petroleum Association, 2020. http://dx.doi.org/10.29118/ipa20-g-61.

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Biostratigraphic data from exploration wells in Papua, West Papua of Indonesia, Papua New Guinea and Australia were reviewed, revised and updated using modern stratigraphic interpretations. Revised stratigraphic interpretations were combined with zircon U-Pb geochronologic data to produce new tectonic reconstructions of the Indonesian provinces of West Papua and Papua. Zircon U-Pb geochronologic data used in this study include new results from the Papuan Peninsula, combined with existing datasets from West Papua, Papua New Guinea, eastern Australia and New Caledonia. Supplementary geochronologic data were used to provide independent validation of the biostratigraphic data. Findings from a compilation of biostratigraphic and zircon age data provide a framework to produce new tectonic models for the origin of New Guinea’s terranes. Two hypotheses are presented to explain observations from the biostratigraphic and geochronologic data. The ‘Allochthonous Terrane’ Model suggests that many of the terranes are allochthonous in nature and may have been derived from eastern Australia. The ‘Extended Rift’ Model suggests that the New Guinea Terranes may have been separated from north-eastern Australia by an elongate rift system far more extensive than previously described. These new tectonic models are essential for our geological understanding of the regional and can be used to drive successful petroleum exploration in this frontier area.
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Suzuki, M., S. Sodeoka, T. Inoue, K. Shimosaka, and S. Oki. "Structure and Properties of Plasma-Sprayed Zircon Coating." In ITSC 2000, edited by Christopher C. Berndt. ASM International, 2000. http://dx.doi.org/10.31399/asm.cp.itsc2000p0333.

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Abstract Effects of spray parameters, such as spray distance, SD, and substrate temperature, Ts, and post heat treatment on the structure and properties of plasma-sprayed zircon coatings were investigated. Zircon was totally decomposed by plasma spray; the coatings were composed of tetragonal zirconia (t-ZrO2) and amorphous silica (a-SiO2), because of the rapid cooling of molten particle right after the impingement to the substrate. Porosity of the as-sprayed coatings was highly affected by both of substrate temperature and spray distance. In all range of the spray distance which had been tried in this study, higher substrate temperature resulted in lower porosity of the coatings; the coating with porosity of 2% was obtained at Ts = 1573K with SD = 95mm. Porosity also decreased with decrease of spray distance. By the heat treatment at 1473K, t-ZrO2 transformed to monoclinic zirconia (m-ZrO2) and a-SiO2 crystallized to cristobalite, respectively. Cracks in the coating disappeared, and open porosity decreased. This can be attributed to sintering of SiO2 and phase transformation of ZrO2. After the heat treatment at 1673K, the coating was composed of ZrSiO4 with dispersed fine m-ZrO2 particle. Open porosity of all the coatings increased up to 10% at this temperature. This is because of volume shrinkage during the formation of zircon.
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Fauroux, MA, P. Tramini, A. Desoutter, and JH Torres. "Étude clinique de l’ostéo-intégration des implants zircone monoblocs ZIRROC® : évaluation à 1 an." In 63ème Congrès de la SFCO, edited by S. Boisramé, S. Cousty, J. C. Deschaumes, V. Descroix, L. Devoize, P. Lesclous, C. Mauprivez, and T. Fortin. Les Ulis, France: EDP Sciences, 2015. http://dx.doi.org/10.1051/sfco/20156303020.

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Bickford, M. E., James M. McLelland, and Jeffrey R. Chiarenzelli. "ZIRCON INHERITANCE IN LYON MOUNTAIN GRANITE: EVIDENCE FROM ZIRCON SATURATION TEMPERATURES." In 51st Annual Northeastern GSA Section Meeting. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016ne-271884.

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Berry, Andrew J., and Laura Crisp. "Zircon as an Oxybarometer." In Goldschmidt2020. Geochemical Society, 2020. http://dx.doi.org/10.46427/gold2020.178.

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Reports on the topic "Zirkon"

1

Kim, K. C., J. Y. Huang, and P. L. Serrano. Fabrication of zircon for disposition of weapons plutonium. Office of Scientific and Technical Information (OSTI), July 1997. http://dx.doi.org/10.2172/515554.

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Schmitt, Axel K., Charles W. Magee Jr., Ian S. Williams, Peter Holden, Trevor R. Ireland, David L. DiBugnara, and Simon Bodorkos. Oxygen isotopic heterogeneity in the Temora-2 reference zircon. Geoscience Australia, 2019. http://dx.doi.org/10.11636/record.2019.004.

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Devanathan, R., W. J. Weber, and L. A. Boatner. Response of zircon to electron and Ne{sup +} irradiation. Office of Scientific and Technical Information (OSTI), December 1997. http://dx.doi.org/10.2172/564254.

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Parrish, R. R. Miscellaneous U - Pb Zircon Dates From Southeast British Columbia. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1992. http://dx.doi.org/10.4095/132919.

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Nicholson, L. N., and J. T. Dillon. Procedures for picking zircons. Alaska Division of Geological & Geophysical Surveys, 1986. http://dx.doi.org/10.14509/1183.

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Tuzzolino, A. L., P. B. O'Sullivan, L. K. Freeman, and R. J. Newberry. Zircon U-Pb age data, Ray Mountains area, Bettles Quadrangle, Alaska. Alaska Division of Geological & Geophysical Surveys, May 2016. http://dx.doi.org/10.14509/29662.

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Mittal, R., S. L. Chaplot, N. Choudhury, and C. K. Loong. Thermodynamic properties and equation of state of zircon ZrSiO{sub 4}. Office of Scientific and Technical Information (OSTI), November 1998. http://dx.doi.org/10.2172/674969.

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van Breemen, O., and L. B. Aspler. Detrital zircon ages from Nonacho Basin, western Rae Province, Northwest Territories. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1994. http://dx.doi.org/10.4095/195170.

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9

Mortensen, J. K., R. I. Thorpe, W. A. Padgham, J. E. King, and W J Davis. U-Pb zircon ages for felsic volcanism in Slave Porvince, N.W.T. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1988. http://dx.doi.org/10.4095/126606.

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10

McNicoll, V. M. U-Pb detrital-zircon geochronology of the Woodburn Lake group, Nunavut. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2020. http://dx.doi.org/10.4095/326019.

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