Gotowe bibliografie tematyczne / Zinc sulfide xrd analysis

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Gotowa bibliografia na temat „Zinc sulfide xrd analysis”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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Artykuły w czasopismach na temat "Zinc sulfide xrd analysis"

Kang, Jiawei, Shubiao Yin, Mingxiao Li, et al. "Sulfidation of Smithsonite via Microwave Roasting under Low-Temperature Conditions." Minerals 14, no. 9 (2024): 855. http://dx.doi.org/10.3390/min14090855.

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This study employs microwave roasting to decompose smithsonite mineral (zinc carbonate) into zinc oxide, which then reacts with pyrite to sulfurize its surface, forming zinc sulfide. This process is beneficial for the flotation recovery of zinc oxide minerals. The surface sulfidation behavior of smithsonite under low-temperature microwave roasting conditions is examined through X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and thermodynamic calculations. XRD and thermodynamic analysis indicate that smithsonite completely decomposes into zi

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Aqeel Abdul Jaleel Ali. "Synthesis, Structural, and Morphology of Zinc Sulfide Thin Film Nanoparticle Annealing." Journal of Wasit for Science and Medicine 16, no. 3 (2023): 84–93. http://dx.doi.org/10.31185/jwsm.481.

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An electrochemical process was used to deposit zinc sulfide thin films on glass substrates. The study aims to determine whether the annealing of zinc sulfide thin films changes their properties. An analysis of the X-ray diffraction patterns (XRD) determined that annealing controls zinc sulfide (ZnS) thin-film crystallinity and influences the structure of zinc sulfide crystallites, which range from cubic to hexagonal. A Field Emission Scanning Electron Microscope was used (FESEM) to obtain images of thin films. None of thin films that not paneled or annealed displayed grain-like morphologies. w

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Choudapur, V. H., S. B. Kapatkar, and A. B. Raju. "Structural and Optoelectronic Properties of Zinc Sulfide Thin Films Synthesized by Co-Precipitation Method." Acta Chemica Iasi 27, no. 2 (2019): 287–302. http://dx.doi.org/10.2478/achi-2019-0018.

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Abstract Wide bandgap Zinc Sulfide nanocrystals are prepared by a simple co-precipitation method at different precursor concentrations. The influence of sulphur concentration in Zinc sulfide on morphological, optical and electric properties is found to be significant. The Zinc Sulfide nanomaterial was prepared using low-cost starting materials and deionised water as the solvent. As synthesized Zinc Sulfide nanocrystals were analyzed using X-ray diffraction (XRD), Energy Dispersive Spectroscopy (EDS) analysis, UV-Visible Spectrophotometry, Photoluminescence (PL), Scanning electron Microscopy (S

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Xiao, Ya, Wenli Zhou, Linheng Mo, Jianli Chen, Meiying Li, and Shaojun Liu. "Microstructure, Mineralogical Characterization and the Metallurgical Process Reconstruction of the Zinc Calcine Relics from the Zinc Smelting Site (Qing Dynasty)." Materials 14, no. 8 (2021): 2087. http://dx.doi.org/10.3390/ma14082087.

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The smelting of zinc is considered as one of the most challenging technologies in ancient civilization. Compared with non-sulfide zinc ores, the smelting of zinc sulfide ores is more complicated since they have to be roasted before smelting. The technological smelting process of the ancient zinc metallurgy technology has been studied and partly reconstructed. However, the roasting technology, including the roasting conditions and involved metallurgical processes, is still unclear. The discovery of the zinc smelting site of Doulingxia dates back to the Qing dynasty (CE 1636–1912), and for the f

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Mohammed, K. A., A. M. Ajam, A. Kareem, K. H. Salem, M. A. Alkhafaji, and R. S. Zabibah. "Doping effect on properties of CdZnS nanoparticles." Chalcogenide Letters 20, no. 1 (2023): 11–17. http://dx.doi.org/10.15251/cl.2023.201.11.

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In current work, Nanoparticles of cadmium zinc sulfide (CdZnS) and copper zinc sulfide (Cu:CdZnS) were synthesized through a capping-agent-free chemical co-precipitation method. This article focuses on the optical characteristics, elemental analysis, and surface morphology of CdZnS and Cu:CdZnS. this properties of prepared materials were investigated using a variety of techniques, including X-ray diffraction (XRD), scanning electron microscopy, energy dispersive X-ray, and ultraviolet–visible absorption. The results show both pure and doped CdZnS have cubic structure. The energy gap of CdZnS w

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Annammal, Kiruba, Paul Abraham Antonyraj, and Suresh Ramasamy. "COMPREHENSIVE ANALYSIS OF THE SIDDHA HERBO-MINERAL FORMULATION SIVA NAMA RASAM USING X-RAY DIFFRACTION AND FOURIER TRANSFORM INFRARED SPECTROSCOPY." International Journal of Research in Ayurveda and Pharmacy 16, no. 2 (2025): 123–26. https://doi.org/10.7897/2277-4343.16255.

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The Siddha system of medicine, rooted in ancient Tamil traditions, emphasizes holistic healing by addressing the root causes of diseases. One such traditional herbo-mineral formulation, Siva Nama Rasam (SNR), has been historically used for treating rheumatism, hemorrhoids, and convulsions. Despite its longstanding therapeutic application, SNR lacks scientific validation regarding its chemical composition. This study employs X-ray diffraction (XRD) and Fourier-transform infrared spectroscopy (FTIR) to characterize SNR and establish its chemical profile. XRD analysis confirms the presence of Lit

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SHAHZAD, N., N. ALI, I. AHMAD, et al. "SURFACTANT ASSISTED HYDROTHERMAL SYNTHESIS OF ZINC SULFIDE NANOPARTICLES USING SINGLE SOURCE PRECURSORS." Chalcogenide Letters 17, no. 9 (2020): 469–80. http://dx.doi.org/10.15251/cl.2020.179.469.

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Lot of research is being carried out to develop solar cells which are economical with higher efficiencies. Many nanomaterials have been explored to tackle this issue. In this paper we have been used pure ZnS and cobalt doped ZnS nanoparticles which were hydrothermally synthesized from single source precursors using TX-100 as surfactant. The prepared precursors and samples were characterized using FTIR, TGA, XRD and UVVisible. The crystallite size of the nanoparticles calculated from the XRD analysis have been found in the range of 20-25 nm. UV-Visible analysis at room temperature shows absorpt

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Yang, Jinlin, Shuo Xu, Wentao Zhou, Pengyan Zhu, Jiguang Liu, and Shaojian Ma. "Experimental Study on Influence of Al2O3, CaO and SiO2 on Preparation of Zinc Ferrite." Minerals 11, no. 4 (2021): 396. http://dx.doi.org/10.3390/min11040396.

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Gossan ore of sulfide zinc deposit contains abundant zinc, iron, and other metal elements, which is a significant resource with complex components and can be utilized. In this study, a new technology of preparing zinc ferrite from zinc sulfide deposit gossan was proposed. The effects of Al2O3, CaO, and SiO2 in gossan on the formation of zinc ferrite were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), and specific surface area and pore size analysis (BET). The results show that the presence of Al2O3 and CaO could hinder the formation of zinc ferrite, while silica h

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Shah, Saad Saud Ali, Noor Ali, Zeeshan Habib, Sana Taimoor, Nasir Mehboob, and Fazal Ur Rehman. "Comparative Study of Zinc Sulfide Thin Films Fabricated by Spin Coating and Rf Magnetron Sputtering as a Buffer Layer for 2nd Generation Photovoltaics." Key Engineering Materials 992 (October 31, 2024): 41–50. http://dx.doi.org/10.4028/p-tn0qkf.

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To meet the requirements of second generation photovoltaics, spin coating and RF magnetron sputtering techniques have been utilized to fabricate zinc sulfide thin films for buffer layer optimization. During fabrication process, substrate temperatures for spin coating and RF magnetron sputtering processes are kept at room temperature and at 200 oC, respectively. Thin films are annealed at 500oC for 1 hour in an inert environment to acquire crystallinity and uniform surface morphology. XRD analysis reveals that thin films fabricated by spin coating and RF magnetron sputtering exhibit wurtzite an

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Alhassan, Sultan, Alhulw H. Alshammari, Satam Alotibi, Khulaif Alshammari, W. S. Mohamed, and N. M. A. Hadia. "Structural and Optical Properties of Nickel-Doped Zinc Sulfide." Nanomaterials 14, no. 19 (2024): 1599. http://dx.doi.org/10.3390/nano14191599.

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In this study, undoped and Ni-doped ZnS nanoparticles were fabricated using a hydrothermal method to explore their structural, optical, and surface properties. X-ray diffraction (XRD) analysis confirmed the cubic crystal structure of ZnS, with the successful incorporation of Ni ions at various doping levels (2%, 4%, 6%, and 8%) without disrupting the overall lattice configuration. The average particle size for undoped ZnS was found to be 5.27 nm, while the Ni-doped samples exhibited sizes ranging from 5.45 nm to 5.83 nm, with the largest size observed at 6% Ni doping before a reduction at high

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Rozprawy doktorskie na temat "Zinc sulfide xrd analysis"

Hancock, Jared M. "Formation and Analysis of Zinc Oxide Nanoparticles and Zinc Oxide Hexagonal Prisms and Optical Analysis of Cadmium Selenide Nanoparticles." BYU ScholarsArchive, 2013. https://scholarsarchive.byu.edu/etd/3867.

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In this dissertation, methods to synthesize ZnO are reported. First, zinc oxide nanoparticles were synthesized with small amounts of transition metal ions to create materials called dilute magnetic semiconductors (DMS). We employed a low temperature sol-gel method that produces ZnO nanoparticles of reproducible size and incorporates cobalt, nickel, and manganese ions into the nanoparticles. Conditions were controlled such that a range of amounts of Co, Ni, and Mn were incorporated. The incorporation was tracked by color changes in the white ZnO powder to blue for Co, green for Ni and yellow fo

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Allehyani, S. H. A., R. Seoudi, D. A. Said, A. R. Lashin, and A. Abouelsayed. "Synthesis, Characterization, and Size Control of Zinc Sulfide Nanoparticles Capped by Polyethylene Glycol." Thesis, Sumy State University, 2015. http://essuir.sumdu.edu.ua/handle/123456789/42490.

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Zinc sulfide nanoparticles were synthesized with controllable size via chemical precipitation. highresolution transmission electron microscopy (HRTEM) and X-ray powder diffraction (XRD) showed that the samples were grown with the cubic phase; the particle size was varied by varying the molar ratios of zinc chloride and sodium sulfide in the presence of poly(ethylene glycol). The optical band gap was calculated on the basis of ultraviolet-visible spectroscopy (UV-VIS) and ranged from 4.13 eV to 4.31 eV depending on the particle size. Surface passivation and adsorption of poly(ethylene glycol) o

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Hickey, Carolyn Frances. "Optical, chemical, and structural properties of thin films of samarium-sulfide and zinc-sulfide." Diss., The University of Arizona, 1987. http://hdl.handle.net/10150/184263.

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The development of materials for optical thin film application is essential to progress in fields such as optical data storage and signal processing. Samarium sulfide (SmS) thin films were prepared by reactive evaporation of samarium in hydrogen sulfide (H₂S). These displayed optical switching properties despite the presence of large amounts of carbon and oxygen. They are therefore potentially useful for data storage. The semiconductor to metal phase transition was characterized by x-ray diffraction and spectrophotometry. The observed optical response was modelled by a Bruggeman effective medi

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Galant, françois Magda. "Étude cinétique de la réaction exothermique d'oxydation du sulfure de zinc." Vandoeuvre-les-Nancy, INPL, 1995. http://www.theses.fr/1995INPL037N.

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Les réactions gaz-solides ont été le plus souvent étudiées en conditions isothermes, alors que d'importants procédés pyrométallurgiques sont basés sur des réactions fortement exothermiques. Dans cette étude, nous nous sommes proposés d'analyser l'influence du dégagement de chaleur sur les différents processus physico-chimiques mis en jeu lors de la réaction d'oxydation du sulfure de zinc une réaction fortement exothermique. Les expériences d'oxydation de particules sphériques poreuses de ZnS ont été réalisées aux températures comprises entre 550 et 900°C et aux pressions partielles d'oxygène d

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Shih-Yen, Chen. "Luminescent and Structural Analysis of Nanosized Strontium Aluminate and Zinc Sulfide Phosphors." 2006. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0001-1107200612395800.

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Chen, Shih-Yen, and 陳師彥. "Luminescent and Structural Analysis of Nanosized Strontium Aluminate and Zinc Sulfide Phosphors." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/20728037643505594775.

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碩士 國立臺灣大學 化學工程學研究所 94 In the first part of this thesis, synthesis of Eu2+, Dy3+ -activated strontium aluminate nanosized phosphors via a novel reverse microemulsion process is reported. This new synthesis technique not only reduced the synthesis temperature of SrAl2O4:Eu2+, Dy3+ phosphors to as low as 900oC, but also reduced the phosphor particle size to nanometer scale. In the microemulsion process, nanometered-micellees trapped the constituent cations, leading to a reduction of the interdiffusion length and an enhancement of the reactivity of the precursors. The photoluminescence

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Feng, Hsiu-Na, and 馮秀娜. "Analysis of the Transforming Efficiency from Electricity to Light of Zinc Sulfide Phosphors." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/67764493487363302537.

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碩士 國立雲林科技大學 化學工程與材料工程研究所 97 Zinc sulfide (ZnS) is a wide-gap (~3.8eV) Ⅱ-Ⅵ group semiconductor material and is commercially used as phosphor. ZnS with good luminescence properties is a candidate material for phosphors that emit visible light. First, the phosphor samples were prepared by spin-coating phosphor slurry on fluorine-doped tin oxide (FTO) conductive glass and they were heat treated at 450 oC ambience for 1 hr. Then, the phosphor samples were excited by the e-gun of Scanning Electron Microscopy (SEM) apparatus. The objective of this study is to analyze the transforming effi

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Tang, Kuang-Yu, and 湯光煜. "Preparation and Analysis of Zinc Oxide and Lead Sulfide Nanowires by Anodic Aluminum Oxide Film." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/23rq8p.

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碩士 國立勤益科技大學 機械工程系 105 In this study, the Anodic Aluminium Oxide(AAO) template, having ordered the array nanoporous structure was fabricated by two-step anodization. Then make Zn-nanowires and Pb-nanowires by vacuum, high temperature, injection technique. Fabricate ZnO-nanowires and PbS-nanowires with after-treatment .And analyze the result about manufactures of ZnO-nanowires and PbS-nanowires. The experiment is about use high-purity aluminum to make array nanoporous structure template by two-step anodization .Make some templates with many different holes size by adjust the paramete

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Części książek na temat "Zinc sulfide xrd analysis"

Hammond, Lloyd, and Don Wright. "XRD Pattern Fitting as a Tool to Control Plating Parameters in Zinc-Nickel Electroplates." In Advances in X-Ray Analysis. Springer US, 1993. http://dx.doi.org/10.1007/978-1-4615-2972-9_37.

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Pella, P. A., W. R. Kelly, K. E. Murphy, E. B. Steel, and S. B. Schiller. "NIST SRM 2708, Zinc Sulfide Thin Film on Polycarbonate for X-Ray Fluorescence Spectrometry." In Advances in X-Ray Analysis. Springer US, 1993. http://dx.doi.org/10.1007/978-1-4615-2972-9_32.

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Dakua, Pratap Kumar, and Deepak Kumar Panda. "Implementation of Zinc Sulfide (ZnS) as a Suitable Buffer Layer for CZTS Solar Cell from Numerical Analysis." In Lecture Notes in Electrical Engineering. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-2308-1_27.

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J. Jader, Mohammed, and Wasan H. Jawad. "Study of Optical and Structural Properties of ZnS/rGO Nano Composites Prepared by Laser Ablation." In Laser Ablation - Applications and Modeling [Working Title]. IntechOpen, 2023. http://dx.doi.org/10.5772/intechopen.113196.

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Through the physical process of laser ablation, zinc sulfide (ZnS/rGO) nanoparticles were created. From there, it was possible to estimate the crystal structure and crystallite size of X-ray diffraction (XRD) particles (D = 8.35 nm). The visible ultraviolet absorption spectrum has also been used to study optical characteristics. The Neodymium-Yak laser (1064 nm) with the pulsed laser energy of 800 mJ and 600 pulse at a frequency of 6 Hz in room temperature was used to form the Graphen Oxide as a Nano composite after it had been prepared by the hummer method and combined with zinc sulfide. This

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Makeswari, M., M. R. Ezhilarasi, and K. Anitha Shree. "GREEN APPROACH FOR FABRICATION OF ZnO NANO PARTICLES FROM EICHHORNIA CRASSIPES AND ITS ANTI-OXIDANT, ANTIBACTERIAL AND ANTIFUNGAL ACTIVITY." In Futuristic Trends in Chemical Material Sciences & Nano Technology Volume 3 Book 11. Iterative International Publishers, Selfypage Developers Pvt Ltd, 2024. http://dx.doi.org/10.58532/v3becs11p2ch2.

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Aquatic weed plant, Eichhornia crassipes is utilized for this synthesis. The nanoparticles were prepared using the Zinc nitrate and plant extract of the Eichhornia crassipes. White coloured paste procured and then desiccated and used for further studies. The characterization of ZnO carried out using FESEM, XRD, EDX, and FTIR. FESEM detects the presence of ZnO nanoparticle’s surface. XRD is applied to predict the size of the nanoparticles was estimated to be 54 nm. EDX results denote the composition of Zinc and Oxygen. Fourier Transform infra red spectra analysis interprets absorption frequency

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Pradeep Santosh Kumar, B., Harika Sunkara, N. Chitti Babu, and Sridevi Veluru. "A NOVEL APPROACH IN SYNTHESIS OF NANO PARTICLES." In Futuristic Trends in Chemical Material Sciences & Nano Technology Volume 3 Book 17. Iterative International Publishers, Selfypage Developers Pvt Ltd, 2024. http://dx.doi.org/10.58532/v3becs17p3ch2.

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The Synthesis Of Zinc Oxide Nanoparticles Using Plant’s Leaf Extract Is Shown In This Paper. By Using Zinc Acetate Dihydride (0.01M Zn(CH3CO2)2) React With Leaf Extract Of Tecoma Stans (Yellow Elder) At Different Concentrations With Maintaining Reaction Temperature At 600 C With 10 Ph A Precipitate Paste Is Obtained Which Is Filtered, Dried, Centrifuged By This We Had Prepared Zinc Oxide Nanoparticles Successfully And We Packed Those Powder For Further Analysis. In The UV Visible Spectrometer (UV-Vis) Absorption Peak Was Observed In Range Between 258nm To 378nm Which Is Specific For Zinc Oxide

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Kalaimathi, M., A. Maheshwaran, K. Hariharan, S. Vishnu, and R. Chinnasamy. "Assessment of Illicium Verum Mediated Preparation of Zinc Oxide Nanoparticles: An Approach to XRD, Spectral and Microscopic Analysis." In Current Topics on Chemistry and Biochemistry Vol. 1. Book Publisher International (a part of SCIENCEDOMAIN International), 2022. http://dx.doi.org/10.9734/bpi/ctcb/v1/2137b.

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O'Hara, Patrick F. "Geochemistry of Early Proterozoic Felsic Volcanic Rocks Associated With Gold Mineralization at the Bell Ranch Prospect, Yavapai County, Arizona." In Proterozoic Ore Deposits of the Southwestern U.S. Society of Economic Geologists, 1987. http://dx.doi.org/10.5382/gb.01.24.

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Abstract During 1983, one hundred-sixteen samples were collected at the Bell Ranch prospect and analyzed for major elements plus zirconium, gold, silver, arsenic, antimony, mercury, copper, lead, and zinc. Thirty-eight samples were collected from rocks interpreted to have a felsic volcanic protolith. These geochemical data are part of a regional study of Early Proterozoic hydrothermal systems associated with strata-bound mineralization. The regional study includes lithologic and alteration mapping as well as analysis of more than 1,300 geochemical samples from eleven properties. The original p

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Makandar, Shahussen, Nataraj J R, Shivaraj B W, and Sham Aan. "SYNTHESIS AND CHARACTERIZATION OF HYDROPHOBIC SURFACE USING METAL OXIDES THIN FILMS." In Futuristic Trends in Mechanical Engineering Volume 3 Book 5. Iterative International Publishers, Selfypage Developers Pvt Ltd, 2024. http://dx.doi.org/10.58532/v3bdme5p1ch4.

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Hydrophobic surfaces play vital role in the solving the technological problems such as marine fouling, anticorrosion and drag reduction. For the synthesis of Nanoparticles such as Zinc Oxide (ZnO), Copper Oxide (CuO) and Ferrous Oxide (Fe2O3) Solution Combustion Method was used. Spin coating method was used to prepare hydrophobic surfaces. ZnO, CuO and Fe2O3 was mixed separately with Polystyrene (PS) and THF solution then magnetically stirred to get uniform dispersion of particles and heated to form gel. This gel was further spin coated on to the glass substrate to form ZnO/PS, CuO/PS and Fe2O

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Choudhary, Sumitra, Vikas Sharma, Abhishek Sharma, Ajay Kumar, and Parveen Kumar. "Analyzing the Properties of Zinc Oxide (ZnO) Thin Film Grown on Silicon (Si) Substrate, ZnO/Si Using RF Magnetron Sputtering Approach." In Modeling, Characterization, and Processing of Smart Materials. IGI Global, 2023. http://dx.doi.org/10.4018/978-1-6684-9224-6.ch014.

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In this work, ZnO single layer thin film of 100 nm is deposited on a Si substrate using RF magnetron sputtering. Base pressure of 1.0×10−5 mbar, RF power of 100W at Ar flow 15 sccm and room temperature were process parameters. The average crystallite size of ZnO layer, deposited on Si substrate, using Scherrer's formula was 108.16 nm. XRD verifies the crystalline nature of ZnO with various peaks at (002), (101) and (103) planes. Using AFM technique, ZnO had an Average Surface Roughness (Ra) of 2.75 nm and RMS roughness (Rq) of 3.70 nm. From Hall measurements at room temperature, the authors de

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Streszczenia konferencji na temat "Zinc sulfide xrd analysis"

Belarbi, Zineb, Richard E. Chinn, and Ömer N. Doğan. "Corrosion Behavior of Zinc Cold Spray Coatings (ZnCr & ZnNb) in a Simulated Natural Gas Environment Containing H2O, CO2, and H2S." In CONFERENCE 2024. AMPP, 2024. https://doi.org/10.5006/c2024-20451.

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Abstract Internal corrosion and sulfide stress cracking (SSC) are problems for steel pipelines transporting natural gas or CO2 containing partial pressures of H2S higher than 0.3 kPa (0.05 psi). The objective of this work is to mitigate internal corrosion and SSC in steel pipelines transporting natural gas containing H2S using cold spray coatings. Two types of the cold spray binary metallic coatings (zinc chromium (ZnCr), zinc niobium (ZnNb)) were studied using electrochemical techniques: potentiodynamic polarization (PDP), linear polarization resistance (LPR), and electrochemical impedance sp

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Zheng, Yougui, Jing Ning, Bruce Brown, David Young, and Srdjan Nesic. "Mechanistic Study of the Effect of Iron Sulfide Layers on Hydrogen Sulfide Corrosion of Carbon Steel." In CORROSION 2015. NACE International, 2015. https://doi.org/10.5006/c2015-05933.

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Abstract A novel experimental set-up was designed and built to investigate the effect of iron sulfide layer growth on H2S corrosion of carbon steel. Tests were conducted by purging 10% H2S/N2 into 1 wt.% NaCl solution at different temperature (25 °C-80 °C), different pH (pH 4 to pH 6) and different flow conditions (60 rpm and 600 rpm magnetic stirring rates). The exposure period was from 1 day to 7 days. The corrosion behavior was monitored by linear polarization resistance (LPR) and checked with weight loss analysis. The morphology and compositions of surface corrosion products were analyzed

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Zhang, Yingrui, and Jeremy Moloney. "Corrosion Monitoring under Iron Sulfide Deposit: Testing Method Development." In CORROSION 2014. NACE International, 2014. https://doi.org/10.5006/c2014-4159.

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Abstract Different from other types of pipeline solids such as sand and iron carbonates, iron sulfide is semi-conductive and electrochemically reactive. This adds extra complexity to laboratory testing and evaluation compared with inert deposits. Previous laboratory testing has shown that the corrosion rate under iron sulfide deposits can be severely overestimated using electrochemical techniques. In the current work a laboratory iron sulfide synthesis method and an iron sulfide under-deposit corrosion testing methodology were developed to better assess and monitor this type of corrosion in a

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Singh Gaur, Raj P. "Genesis and Phase Characterization of Oil-field Calcium Sulfate Scales." In CORROSION 2019. NACE International, 2019. https://doi.org/10.5006/c2019-13435.

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Abstract The scale sample used in this work was obtained from a test well (used for testing the compatibility of seawater and formation water). The sample was analyzed at 7 regions as well as at the pipe scale interface and the scale water interface to determine the genesis of the scale-formation. Chemical analysis of the bulk scale sample indicated that it was mainly made of Ca, S and Sr elements (based upon XRF and ICP-AES analysis). Small to trace amounts of Na (0.4%, Fe (0.1%) and Ba (0.03%) were also present. XRD analysis, performed with a Debye Scherer Camera, of a small portion from the

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Sanni, Olujide, Thibaut Charpentier, and Anne Neville. "Carbonate and Sulfide Scale Formation in Multiphase Conditions." In CONFERENCE 2022. AMPP, 2022. https://doi.org/10.5006/c2022-17894.

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Abstract Calcium carbonate (CaCO3) scale formation is recognized as a major problem affecting production and transportation in the oil and gas industry. The phenomenon is extensively studied however; very limited work has been carried out to evaluate it in multiphase environments. This work aims to study calcium carbonate surface deposition in a multiphase environment that can replicate more accurately conditions encountered during secondary and ternary oil production. Multiphase conditions induced by introduction of a light distillate within the system were used to create oil in water (o/w) e

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Sinani, Berat, Fisnk Frangu, Ramiz Krasniqi, Besnik Shala, Bahri Sinani, and Vehbi Berisha. "GEOSTATISTICAL DISTRIBUTION OF LEAD AND ZINC METALS IN ARTANA 1 LANDFILL: MINERALOGICAL CHARACTERIZATION OF THE LANDFILL OBTAINED FROM RESIDUES FROM THE LEAD-ZINC FLOTATION PROCESS." In 24th SGEM International Multidisciplinary Scientific GeoConference 24. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/1.1/s01.11.

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The surface area of the studied area in the Artana 1 landfill is about 24,000 m2. Presented here are samples taken from 11 boreholes with survey designations S-6, S-8, S-9, S-11, S-12, S-16, S-19, S-20, S-24, B /Y-2 (S-Y-2), Y-5 (S-Y-5). Drilling wascarried out using the spiral survey method up to the base level of the soil. The workswere carried out by the Trepca-Karova institutions within the project of recycling wastefrom the ore flotation of the Artana-Kishnica mines. Samples were taken at each meter,the survey number separately and by meter were counted and bagged and prepared forseparati

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Atakoglu, Ozer, and Mustafa Gurhan Yalcin. "GENESIS OF THE ERVA Pb�Zn DEPOSIT KAYSERI (YAHYALI): MINERALOGY AND TRACE ELEMENT GEOCHEMISTRY." In 24th SGEM International Multidisciplinary Scientific GeoConference 24. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/1.1/s03.39.

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As nonferrous metals, lead zinc is the most widely used ore after aluminum and copper. Considering the increasing demands in industry, it is understood that a sustainable mine supply is necessary to meet the Pb-Zn. In this context, the geochemical characteristics of the Erva lead zinc deposit in Yahyali (Kayseri) district were tried to be revealed. The study area, Yahyali district, is located in the Southeast of the Central Anatolia Region. The geological unit in which the Erva is located is the Yahyali Munzur Nappe, which tectonically overlies the Feke sequence. In this study, XRF (X Ray Fluo

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Park, N. G., L. Morello, J. E. Wong, and S. A. Maksoud. "The Effect of Oxygenated Methanol on Corrosion of Carbon Steel in Sour Wet Gas Environments." In CORROSION 2007. NACE International, 2007. https://doi.org/10.5006/c2007-07663.

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Abstract Methanol is commonly used in the oil industry as a thermodynamic hydrate inhibitor. In world regions with extended winter seasons, significant amounts of methanol are injected into wells and pipelines. Previous studies have demonstrated that the presence of methanol in sour conditions can lead to higher corrosion rates and the increased susceptibility to sulfide stress cracking (SSC) in pipeline steel. Another problem is oxygen intrusion by dissolution in methanol, increasing corrosion rates and potential for localized corrosion. This paper studies the effect of oxygen in methanol on

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Menendez, C. M., V. Jovancicevic, S. Ramachandran, M. Morton, and D. Stegmann. "New Method for Assessing Corrosion under Iron Sulfide Deposits and CO2/H2S Conditions." In CORROSION 2011. NACE International, 2011. https://doi.org/10.5006/c2011-11265.

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Abstract The presence of surface deposits, such as sand, iron sulfide or organic solids in oil and gas production systems can lead to premature failure of fluid-handling equipment. When corrosion occurs under solid deposition, the process of corrosion is often referred to as under-deposit corrosion (UDC). The UDC mechanism is dependent upon the local operating conditions, such as gas composition, conditions of fluid flow, and solid content of the fluids. In this work, a new monitoring method was developed to study the corrosion that occurs under a relatively thick layer of deposits. Iron sulfi

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Anyanwu, Ezechukwu, Claudia Prieto, Bruce Brown, and Marc Singer. "Mechanical Properties of a Mackinawite Corrosion Product Layer." In CORROSION 2019. NACE International, 2019. https://doi.org/10.5006/c2019-13441.

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Abstract Mechanical properties of the corrosion product layers as well as corrosion mechanisms need to be studied for better prediction of general and localized corrosion and to develop a holistic understanding of corrosion mechanisms in upstream oil and gas pipelines. Various ongoing research efforts have focused on the topic of sour corrosion mechanisms, while minimal attention has been paid to ascertaining the mechanical properties of the iron sulfide layers developed in these environments. The effects of fluid flow (i.e. erosion/corrosion, wall shear stress) as well as the impact of differ

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