Relevant bibliographies by topics / Alkali elements

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Alkali elements'

Author: Grafiati
Published: 4 June 2021
Last updated: 26 July 2025

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Journal articles on the topic "Alkali elements"

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Philip, Jackson, Wuerz Roland, Hariskos Dimitrios, Lotter Erwin, Witte Wolfram, and Powalla Michael. "Effects of heavy alkali elements in Cu(In,Ga)Se2 solar cells with efficiencies up to 22.6%." Physica Status Solidi RRL 10, no. 8 (2016): 583–86. https://doi.org/10.1002/pssr.201600199.

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We report on the use and effect of the alkali elements rubidium and caesium in the place of sodium and potassium in the alkali post deposition treatment (PDT) as applied to Cu(In,Ga)Se<sub>2</sub> (CIGS) solar cell absorbers. In order to study the effects of the different alkali elements, we have produced a large number of CIGS solar cells with high efficiencies resulting in a good experimental resolution to detect even small differences in performance. We examine the electrical device parameters of these fully functional devices and observe a positive trend in the <em>I</em>&ndash;<em>V</em>
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Nusbaum, Robert L., and S. Kerry Gant. "Alkali Metasomatism and Fossil Geothermal Activity: Wah Wah Springs Tuff, Utah." Mountain Geologist 24, no. 1 (1987): 26–29. http://dx.doi.org/10.31582/rmag.mg.24.1.26.

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Variable degrees of widespread alkali metasomatism have been detected within Wah Wah Springs Tuff samples collected in southwestern Utah. Highly altered samples show (1) strong periodic enrichment trends for alkali metals (except Na) at the expense of alkaline earth elements (except Ba), and (2) complete to partial replacement of andesine phenocrysts by K-feldspar: Mildly altered samples show (1) similar but less extreme enrichments and depletions compared to highly altered samples, and (2) no megascopic evidence of alteration. Cs is the most sensitive of the elements enriched by the alteratio
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Stone, H. E. N. "Valency relations between alkali and alkali earth elements and elements of second and third long periods." Materials Science and Technology 3, no. 3 (1987): 171–75. http://dx.doi.org/10.1179/mst.1987.3.3.171.

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Magee Jr., C. W., and C. A. Norris. "Alkali element background reduction in laser ICP-MS." Geoscientific Instrumentation, Methods and Data Systems 4, no. 1 (2015): 75–80. http://dx.doi.org/10.5194/gi-4-75-2015.

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Abstract. Alkali backgrounds in laser ablation ICP-MS analyses can be enhanced by electron-induced ionisation of alkali contamination on the skimmer cone, reducing effective detection limits for these elements. Traditionally, this problem is addressed by isolating analyses of high-alkali materials onto a designated cone set, or by operating the ICP-MS in a "soft extraction" mode, which reduces the energy of electrons repelled into the potentially contaminated sampling cone by the extraction field. Here we present a novel approach, where we replace the traditional alkali glass tuning standards
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Magee, C. W., and C. A. Norris. "Alkali element background reduction in laser ICP-MS." Geoscientific Instrumentation, Methods and Data Systems Discussions 4, no. 2 (2014): 609–26. http://dx.doi.org/10.5194/gid-4-609-2014.

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Abstract. Alkali backgrounds in laser ablation ICP-MS analyses can be enhanced by electron-induced ionization of alkali contamination on the skimmer cone, reducing effective detection limits for these elements. Traditionally, this problem is addressed by isolating analyses of high alkali materials onto a designated cone set, or by operating the ICP-MS in a "soft extraction" mode, which reduces the energy of electrons repelled into the potentially contaminated sampling cone by the extraction field. Here we present a novel approach, where we replace the traditional alkali glass tuning standards
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Shidling, P. D., G. S. Giri, D. J. van der Hoek та ін. "Thermalization of different alkali and alkali-earth elements at the TRIμP facility". Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 622, № 1 (2010): 11–16. http://dx.doi.org/10.1016/j.nima.2010.07.048.

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KIRAN KUMAR, P. V., and M. V. SURYANARAYANA. "Precision two-photon spectroscopy of alkali elements." Pramana 83, no. 2 (2014): 189–219. http://dx.doi.org/10.1007/s12043-014-0789-3.

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Nahara, Annisa Ridha, Erlinda Ningsih, Raden Darmawan, and Sri Rachmania Juliastuti. "Optimization of Sidoarjo Mud Akaline Fusion Process Using Taguchi Method." Diffusion Foundations and Materials Applications 37 (December 24, 2024): 61–68. https://doi.org/10.4028/p-phldd4.

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Sidoarjo mud contains 48.3% silica which is considered as the biggest impurity when compared to the content of rare earth metals which are 0.3% Eu and 0.02% Yb. The hydrothermal process is used to bind silica as a form of silica extraction activity in the Sidoarjo mud so that the Rare Earth Elements are purified further because their uses are urgently needed. This process compares the alkalis in the form of Na2CO3 and K2CO3 which are basic salts which will then be compared to the most optimum conditions of the two alkalis. Each alkali will be processed under operating conditions following the
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Norouzzadeh, Payam, Jerzy S. Krasinski, Charles W. Myles, and Daryoosh Vashaee. "Type VIII Si based clathrates: prospects for a giant thermoelectric power factor." Physical Chemistry Chemical Physics 17, no. 14 (2015): 8850–59. http://dx.doi.org/10.1039/c5cp00729a.

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Lichtenberg, Andreas, Lidia Inderdühnen, Aida Lichtenberg, and Sanjay Mathur. "Heterobimetallic Uranium(V)-Alkali Metal Alkoxides: Expanding the Chemistry of f-Block Elements." Molecules 30, no. 11 (2025): 2361. https://doi.org/10.3390/molecules30112361.

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Heterobimetallic uranium(V) alkoxides incorporating monovalent alkali metal counterions display remarkable structural versatility, dictated by the steric demands of the alkoxide ligands and the ionic radius of the alkali metal. Compounds of the general formula [UM(OtBu)6] (UM-OtBu-type: M = Na, K, Rb, Cs) were obtained by: (i) reacting [U(OtBu)5(py)] with equimolar amounts of alkali metal silylamides in tert-butyl alcohol, and (ii) oxidative transformation of [UM2(OtBu)6] (M = Na, K, Rb, Cs) upon reaction with iodine. Trans-alcoholysis of uranium heterobimetallic tert-butoxides with sterically
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Dissertations / Theses on the topic "Alkali elements"

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McBride, Emma Elizabeth. "On structural studies of high-density potassium and sodium." Thesis, University of Edinburgh, 2014. http://hdl.handle.net/1842/8928.

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The alkali elements at ambient conditions are well described by the nearly-free electron (NFE) model, yet show a remarkable departure from this “simple” behaviour with increasing pressure. Low-symmetry complex structures are observed in all, and anomalous melting has been observed in lithium (Li), sodium (Na), rubidium (Rb), and caesium (Cs). In this Thesis, static and dynamic compression techniques have been used to investigate the high-pressure high-temperature behaviour of the alkali elements potassium (K) and Na. Utilising diamond anvil pressure cells and external resistive heating, both i
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Majlesi, Yasin. "A laboratory investigation into the structural performance and mechanical properties of plain and reinforced concrete elements affected by alkali silica reaction." Thesis, Queen Mary, University of London, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.313114.

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The object of this study was to help clarify some of the fundamental problems occurring in plain and reinforced concrete structural elements suffering from the degradation phenomenon of alkali silica reaction. A laboratory based testing programme was used, so that extreme conditions for generating alkali silica reaction could be used which are not readily achieved in actual structures. Special concrete mixes were also used in which the alkali silica reaction occurs within a period of months rather than years so that observation of the properties of the reacted concrete could be taken throughou
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CRAVEN, KERI. "THE ORIGIN OF ALKALIC BASALTS FROM HALEAKALA VOLCANO, EAST MAUI, HAWAII." University of Cincinnati / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1060891813.

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Balabuch, Tito José Rodrigues. "Análise numérica das deformações do concreto sujeito à reação álcali-agregado considerando os efeitos de retração e fluência." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/18/18134/tde-27082018-125220/.

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As deformações derivadas da retração e da fluência estão entre os principais fatores que afetam a integridade e facilidade de manutenção das estruturas de concreto a longo prazo. Outro fator que corrobora para a deterioração do concreto é a Reação Álcali-Agregado (RAA), que devido à sua característica expansiva é considerada uma manifestação patológica de difícil tratamento, sendo necessário medidas mitigadoras para evitar sua ocorrência. A retração, a fluência e a RAA são deformações expressivas em estruturas com grandes volumes de concreto, em que as deformações devido à retração e à fluênci
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Stegmaier, Saskia [Verfasser], Thomas F. [Akademischer Betreuer] Fässler, Hubert [Akademischer Betreuer] Schmidbaur, and Karsten [Akademischer Betreuer] Reuter. "Clusters and Networks of Tetrel Elements and Late d Block Metals in Ternary Intermetallic Phases with Alkali and Alkaline Earth Metals / Saskia Stegmaier. Gutachter: Thomas F. Fässler ; Hubert Schmidbaur ; Karsten Reuter. Betreuer: Thomas F. Fässler." München : Universitätsbibliothek der TU München, 2012. http://d-nb.info/1051935032/34.

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Witherow, Rebecca A. "Minor Alkaline Earth Element and Alkali Metal Behavior in Closed-Basin Lakes." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1250628213.

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Faure, Pierre. "Comportement des éléments lithophiles lors de la formation du noyau terrestre." Thesis, Université Clermont Auvergne‎ (2017-2020), 2019. http://www.theses.fr/2019CLFAC076.

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La formation du noyau est un événement central de l'histoire de l'accrétion terrestre, responsable d'une ségrégation majeure des éléments chimiques selon leurs affinités pour le métal (sidérophile) ou le silicate (lithophile). La Terre silicatée montre en effet un appauvrissement en éléments sidérophiles cohérent avec la formation d'un noyau au sein d'un océan magmatique plus ou moins profond. Cette affinité d'un élément chimique est fonction des conditions physico-chimiques (P, T, fo2, composition chimique) dans lesquelles se déroule la différenciation métal-silicate. Le comportement d'un élé
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Smith, R. G. "Neutral homoleptic alkyls of yttrium and the 4f elements." Thesis, University of Sussex, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384737.

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Vilela, Gorga Rodrigo. "Engineering-Based FE Approach to Appraise Slender Structures Affected by Alkali-Aggregate Reaction (AAR)." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/38179.

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Alkali-aggregate reaction (AAR) is one of the most harmful distress mechanisms affecting the performance of aging reinforced concrete structures worldwide. Although several prediction models have been developed to assess the chemical reaction, a thorough and comprehensive approach with the capabilities to correlate important parameters that affect AAR and the mechanical properties of deteriorated materials, as well as the abilities to describe the current damaged state of AAR-affected structures (diagnosis) and predict the potential of further damage (prognosis) is still lacking. Such informat
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Miller, Sarah Ann Rossman George Robert Rossman George Robert. "Alkaline earth element partitioning in simplified magmatic systems /." Diss., Pasadena, Calif. : California Institute of Technology, 2007. http://resolver.caltech.edu/CaltechETD:etd-05132007-103357.

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Books on the topic "Alkali elements"

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G, Walthall Frank, Philpotts John A, and Geological Survey (U.S.), eds. Abundances of Li, Rb, and Sr in W-2, BCR-1, and AC-E determined by isotope dilution mass spectroscopy. U.S. Dept. of the Interior, Geological Survey, 1993.

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Anoop, Kelkar, and Bhabha Atomic Research Centre, eds. Validation of ION chromatography for the determination of transition metal IONs along with alkali, alkaline earth metal elements for uranium oxide fuel. Bhabha Atomic Research Centre, 2009.

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Anoop, Kelkar, and Bhabha Atomic Research Centre, eds. Validation of ION chromatography for the determination of transition metal IONs along with alkali, alkaline earth metal elements for uranium oxide fuel. Bhabha Atomic Research Centre, 2009.

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Han, Qiyong. Rare earth, alkaline earth and other elements in metallurgy. Japan Technical Information Service, 1998.

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Geological Survey (U.S.), ed. Modal compositions, whole-rock chemical data and normative mineralogy, and minor element data for rocks from alkaline intrusive complexes in northwestern Montana. U.S. Dept. of the Interior, Geological Survey, 1987.

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Armbrustmacher, Theodore J. Modal compositions, whole-rock chemical data and normative mineralogy, and minor element data for rocks from alkaline intrusive complexes in northwestern Montana. U.S. Dept. of the Interior, Geological Survey, 1987.

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Armbrustmacher, Theodore J. Modal compositions, whole-rock chemical data and normative mineralogy, and minor element data for rocks from alkaline intrusive complexes in northwestern Montana. U.S. Dept. of the Interior, Geological Survey, 1987.

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Armbrustmacher, Theodore J. Modal compositions, whole-rock chemical data and normative mineralogy, and minor element data for rocks from alkaline intrusive complexes in northwestern Montana. U.S. Dept. of the Interior, Geological Survey, 1987.

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Armbrustmacher, Theodore J. Modal compositions, whole-rock chemical data and normative mineralogy, and minor element data for rocks from alkaline intrusive complexes in northwestern Montana. U.S. Dept. of the Interior, Geological Survey, 1987.

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Zhou, Chengchuan. Enhanced Extraction of Alkaline Metals and Rare Earth Elements from Unconventional Resources during Carbon Sequestration. [publisher not identified], 2019.

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Book chapters on the topic "Alkali elements"

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Simon, Arndt. "Alkali and Alkaline Earth Metal Suboxides and Subnitrides." In Molecular Clusters of the Main Group Elements. Wiley-VCH Verlag GmbH & Co. KGaA, 2005. http://dx.doi.org/10.1002/3527602445.ch3a.

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Sicius, Hermann. "Hydrogen and Alkali Metals: Elements of the First Main Group." In Handbook of the Chemical Elements. Springer Berlin Heidelberg, 2024. http://dx.doi.org/10.1007/978-3-662-68921-9_1.

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Alonso, Julio A., and María J. López. "Electronic Structure of Bimetallic Clusters Based on Alkali Elements." In Theory of Atomic and Molecular Clusters. Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-642-58389-6_11.

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Scott, A. D., and S. J. Smith. "Sources, Amounts, and Forms of Alkali Elements in Soils." In Advances in Soil Science. Springer New York, 1987. http://dx.doi.org/10.1007/978-1-4612-4682-4_3.

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Schäfer, Marion C., and Thomas Schleid. "Rare-Earth Metal(III) Fluoride Oxosilicates Derivatized with Alkali or Alkaline-Earth Elements." In Minerals as Advanced Materials II. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-20018-2_32.

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Nabeshima, Yo-ichi, Taichi Uetsuki, Thorn Komiya, Yoko Nabeshima, and Atsuko Fujisawa-Sehara. "Regulatory elements involved in chicken myosin alkali light chain gene expression." In The Dynamic State of Muscle Fibers, edited by Dirk Pette. De Gruyter, 1990. http://dx.doi.org/10.1515/9783110884784-006.

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Martin, L., P. Thomas, P. De Silva, and V. Sirivivatnanon. "Role of Aggregate Reactivity, Binder Composition, and Curing Temperature on the Delayed Ettringite Formation and Associated Durability Loss in Concrete." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-3330-3_11.

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AbstractThe durability of concrete is critical to its worldwide use as a structural material for buildings and infrastructure, with the lifetime service of concrete greatly affecting its economic, environmental, and social costs. Causes of durability loss in some concrete structures can be attributed to the alkali–silica reaction (ASR) and delayed ettringite formation (DEF). Both are chemical reactions that have the potential to cause expansion and strength loss in affected elements. Significant overlap exists in the factors contributing to ASR and DEF in concrete structures, with widely repor
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Gärtner, Stefanie, and Nikolaus Korber. "Polyanions of Group 14 and Group 15 Elements in Alkali and Alkaline Earth Metal Solid State Compounds and Solvate Structures." In Zintl Ions. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/430_2011_43.

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Shetty, Sahithya S., Shriram Marathe, and I. R. Mithanthaya. "Comparative Studies on Flexural Strength of Conventional and Alkali-Activated Masonry Elements Designed to Field Mix." In Lecture Notes in Civil Engineering. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-6828-2_7.

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Duan, Lunbo, and Lin Li. "Oxygen Carrier Aided Gasification (OCAG)." In Oxygen-Carrier-Aided Combustion Technology for Solid-Fuel Conversion in Fluidized Bed. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-9127-1_5.

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AbstractGasification is regarded as an effective clean utilization technology of solid fuel, which can convert the chemical energy of solid fuel into gaseous fuel. However, the primary gas products contain not only the essential gas products, but also an unacceptable amount of tars, which will cause operational problems such as blockage of downstream equipment during gasification. Catalysts are often used after the gasifier to catalyze tar in the pyrolysis product gas. However, the activity ofcatalysts generally declines over time, as they will be poisoned by prolonged exposure to an atmospher
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Conference papers on the topic "Alkali elements"

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Mcalister, Kelvin, and Edward Wolfe. "A Study of the Effects of Alkali Attack on Refractories Used in Incineration." In CORROSION 1993. NACE International, 1993. https://doi.org/10.5006/c1993-93207.

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Abstract For optimal refractory service life, various factors must be assessed when refractories are used in incinerator applications. This paper explores high temperature chemical reactions between highly alkaline waste and assorted refractory composites. Alkali attack from destructive elements such as sodium and potash (salts) can often be the primary mode of lining wear. The results of laboratory evaluations are discussed. Insight is given as to recent discoveries on the changing mode of alkali attack in incinerators with highly alkaline waste.
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Mäkipää, M., Th Malkow, and D. J. Baxter. "The Effect of Salt Composition on the Chlorine Corrosion of Low Alloy Steels." In CORROSION 2001. NACE International, 2001. https://doi.org/10.5006/c2001-01186.

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Abstract Material wastage of superheater tubes made of low alloy steels is greatly accelerated under normal operating conditions if alkali chlorides are stable in the deposits. The effect of salt composition on the corrosion behavior especially that of the alkali cation, Na or K was investigated using crucible tests in a thermobalance under a flowing N2-O2-CO2-atmosphere, followed by SEM/EDS analyses and thermodynamic calculations. For both salts, rapid corrosion occurred due to the known mechanism of active oxidation. In the case of sodium chloride, a major part of the metal loss was caused b
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Pompe, Robert, Ola Lyckfeldt, Lars Eklund, Jan-Erik Svensson, and Lars-Gunnar Johansson. "Evaluation of Ceramic Sacrificial Coatings for Improved Alkali-Induced Corrosion Protection in Biofuel-Fired Boilers." In CORROSION 2013. NACE International, 2013. https://doi.org/10.5006/c2013-02159.

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Abstract In the combustion of bio-based fuels the critically exposed burner parts in small boilers are typically uncooled and are usually made of FeCrNi alloys. These materials can suffer attack from the ashes because of the formation of alkali chromate. The reaction depletes the protective oxide in chromia, leading to accelerated corrosion. Selected “acidic” ceramic coatings based on Ti, Si, B and P have been evaluated for use as sacrificial layers to prevent the initial reaction of alkali and chromium. An accelerated oxidation test method including mild thermal shock has been utilized that p
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Baker, Brian A., and Gaylord D. Smith. "Corrosion Resistance of Alloy 740 as Superheater Tubing in Coal-Fired Ultra-Supercritical Boilers." In CORROSION 2004. NACE International, 2004. https://doi.org/10.5006/c2004-04526.

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Abstract The nature of coal ash corrosion and factors affecting its severity are examined. Laboratory results for iron- and nickel-base alloys from a number of sources are compared. Flue gas composition (SO2 content), coal ash alkali sulfate content, surface temperature and alloy composition are related to corrosion behavior. Results from in situ plant exposures will also be discussed; the role of key alloying elements will be addressed.
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Smith, G. D., S. J. Patel, N. C. Farr, and M. Hoffmann. "The Corrosion Resistance of Nickel-Containing Alloys in Coal-Fired Boiler Environments." In CORROSION 1999. NACE International, 1999. https://doi.org/10.5006/c1999-99055.

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Abstract This paper examines the nature of coal ash/flue gas corrosion and factors influencing its degree of aggressiveness. Citing both laboratory and plant experience, the performance of a number of nickel-containing alloys are assessed as to their general performance limits based on corrosion resistance. The role of certain key alloying elements is addressed. Corrosion behavior is examined in terms of chromium content of the alloy, the SO2/SO3 content of the flue gas, the alkali content of the coal ash and the surface temperature of the alloy exposed to the environment.
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Bayer, George T., and Kim A. Wynns. "Emerging Surface Modification Technologies for High-Temperature Environments." In CORROSION 1997. NACE International, 1997. https://doi.org/10.5006/c1997-97152.

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Abstract Materials of construction in waste incineration and waste fuel combustion environments experience severe high-temperature fireside corrosion problems due to such mechanisms as oxidation, sulfidation, halogen corrosion, and molten salt/ash attack from low melting point alkali and heavy metal sulfides and halides. Certain key elements, namely aluminum, chromium, and silicon, have the ability to effectively resist such corrosion if present in sufficient quantities in the base alloy. These alloys tend to be very costly and/or have unsuitable mechanical properties. A viable alternative to
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Junker, Andreas, Lars Vendelbo Nielsen, and Per Møller. "Effect of Chemical Environment and pH on AC Corrosion of Cathodically Protected Structures." In CORROSION 2017. NACE International, 2017. https://doi.org/10.5006/c2017-09352.

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Abstract AC corrosion of structures under cathodic protection (CP) is a major concern for pipelines in case of even minor AC perturbations. There are indications that the specific chemical environment has a large influence on the AC mitigation current density criteria outlined in EN 15280:2013 [1]. This work investigates the effect of soil constituents, the earth alkali elements Ca and Mg, believed to have a large influence on the precipitation of hydroxides and carbonates in front of a coating damage. The formation of different polymorphous calcium carbonates, depending on the cathodic potent
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Sergi, George, and David Whitmore. "Performance of Zinc Sacrificial Anodes for Long-term Control of Reinforcement Corrosion." In CORROSION 2010. NACE International, 2010. https://doi.org/10.5006/c2010-10122.

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Abstract Since its development in the mid-nineties, numerous installations of the alkali activated zinc sacrificial anodes have been carried out in repairs to steel reinforced concrete structural elements suffering from corrosion. From these, several sites have been thoroughly monitored in the UK and worldwide. Results so far have been very encouraging with current densities ranging between 0.8 mA/m2 and 8 mA/m2 of steel surface depending on the type of application which includes cathodic prevention, corrosion control and cathodic protection. These levels of currents were shown to be sufficien
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Talus, Annika, Rikard Norling, and Alice Moya Núñez. "Influence of Pb and Cl in Waste Wood Fuel on Furnace Wall Corrosion of Low Alloyed Steel and Alloy 625." In CONFERENCE 2024. AMPP, 2024. https://doi.org/10.5006/c2024-21033.

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Abstract Firing waste wood in thermal power plants can lead to furnace wall corrosion due to corrosive elements such as chlorine, heavy metals, and alkali metals present in the fuel. This study investigates the influence of lead and chlorine on furnace wall corrosion of a low alloyed steel (16Mo3) and a nickel-based alloy (Alloy 625) during two field exposures using an air-cooled probe. Two two-week long test campaigns firing two different waste wood fuels (higher and lower lead and chlorine content) were carried out, exposing samples having metal temperatures in the interval 350-400 °C. The c
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Wang, Wei, and Akram Alfantazi. "Electrochemical Corrosion Behavior of Niobium Alloys as Metallic Bio-implants." In CORROSION 2016. NACE International, 2016. https://doi.org/10.5006/c2016-07270.

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Abstract Alloying is one of the most important methods to improve the corrosion resistance and mechanical properties of metals. Previous studies show that the corrosion resistance of niobium Nb could be increased by Ta alloying in alkali solutions. Nevertheless, compared with Ti alloys, only a few Nb alloys were reported to increase their corrosion resistance. In this work, the mechanical properties and microstructure of Nb-Ta-Re, Nb-Re, Nb-Pd, and Nb-Pt alloys were studied by nano-indentation measurements and X-ray diffraction, respectively. The corrosion behavior of these alloys was compared
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Reports on the topic "Alkali elements"

1

Delegard, C. H., V. F. Peretrukhin, V. P. Shilov, and A. K. Pikaev. Alkaline chemistry of transuranium elements and technetium and the treatment of alkaline radioactive wastes. Office of Scientific and Technical Information (OSTI), 1995. http://dx.doi.org/10.2172/92064.

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2

Potter, E. G., P. Acosta-Góngora, L. Corriveau, J. F. Montreuil, and Z. Yang. Uranium enrichment processes in metasomatic iron oxide and alkali-calcic systems as revealed by uraninite trace element chemistry - supplementary data. Natural Resources Canada/CMSS/Information Management, 2021. http://dx.doi.org/10.4095/328300.

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3

Asvapathanagul, Pitiporn, Simone Galano, Andrea Calabrese, et al. Experimental Investigation of the Self-Healing Potential of Bacteria for Sustainable Concrete Structures. Mineta Transportation Institute, 2023. http://dx.doi.org/10.31979/mti.2023.2239.

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Although concrete is the most widely used building material in the world, its limited tensile strength makes cracking a common phenomenon in concrete elements. This study investigates the potential of autonomous self-healing as an eco-friendly and lowcost method to increase the durability of concrete. The crack-healing potential of different types of high-alkaline-tolerant bacteria or calcite-precipitation microorganisms is investigated. High-alkaline-tolerant bacteria and calcite-precipitation microorganisms were used to retrofit lab-fractured concrete samples. The samples healed with each of
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4

Krot, N., V. Shilov, A. Bessonov, et al. Investigation on the co-precipitation of transuranium elements from alkaline solutions by the method of appearing reagents. Office of Scientific and Technical Information (OSTI), 1996. http://dx.doi.org/10.2172/353259.

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5

Matte, S., M. Constantin, and R. Stevenson. Mineralogical and geochemical characterisation of the Kipawa syenite complex, Quebec: implications for rare-earth element deposits. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/329212.

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The Kipawa rare-earth element (REE) deposit is located in the Parautochton zone of the Grenville Province 55 km south of the boundary with the Superior Province. The deposit is part of the Kipawa syenite complex of peralkaline syenites, gneisses, and amphibolites that are intercalated with calc-silicate rocks and marbles overlain by a peralkaline gneissic granite. The REE deposit is principally composed of eudialyte, mosandrite and britholite, and less abundant minerals such as xenotime, monazite or euxenite. The Kipawa Complex outcrops as a series of thin, folded sheet imbricates located betw
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Jongpatiwut, Siriporn, Somchai Osuwan, Thirasak Rirksomboon, and ชมพูนุท พึ่งกลั่น. n-alkane aromatization over modified Pt supported KL zeolites. Chulalongkorn University, 2013. https://doi.org/10.58837/chula.res.2013.94.

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From previous studies, Sn-promoted Pt/KL prepared by vapor-phase co-impregnation exhibited high stability and selectivity to C8-aromatics for n-octane aromatization. Although the Pt/KL has many benefits, one of the serious drawbacks is its sensitivity to sulfur poisoning. Based on previous investigations, the addition of rare earth elements (RE; e.g. Tm, Ce, and Dy) into Pt/KL could improve sulfur tolerance of the catalysts. In this work, the sulfur resistance of PtSn/KL and RE-promoted PtSn/KL has been studied. PtSnRE/KL catalysts with Pt:Sn:RE ratio of 1:1:0.15 were prepared by sequential RE
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Corriveau, L., and E. G. Potter. Advancing exploration for iron oxide-copper-gold and affiliated deposits in Canada: context, scientific overview, outcomes, and impacts. Natural Resources Canada/CMSS/Information Management, 2024. http://dx.doi.org/10.4095/332495.

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The Geo-mapping for Energy and Minerals (GEM) and Targeted Geoscience Initiative (TGI) programs conducted extensive collaborative research on mineral systems with iron oxide-copper-gold (IOCG) and affiliated deposits in prospective settings of Canada. Regional alteration mapping as well as geochemical and geophysical modelling undertaken under the GEM program documented the evolution of polymetallic metasomatic systems with iron-oxide and alkali-calcic alteration and led to an increased recognition of the mineral potential of poorly explored areas and historic deposits of the Great Bear magmat
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Marsh, S. F., Z. V. Svitra, and S. M. Bowen. Distributions of 14 elements on 60 selected absorbers from two simulant solutions (acid-dissolved sludge and alkaline supernate) for Hanford HLW Tank 102-SY. Office of Scientific and Technical Information (OSTI), 1993. http://dx.doi.org/10.2172/10103009.

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Beckett-Brown, C. E., A. M. McDonald, and M. B. McClenaghan. Discovering a porphyry deposit using tourmaline: a case study from Yukon. Natural Resources Canada/CMSS/Information Management, 2023. http://dx.doi.org/10.4095/331349.

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As the exploration for porphyry Cu-Au-Mo deposits has become increasingly challenging, the development of more effective techniques directed at detecting buried deposits has become critical. One methodology is to focus on key minerals, one of which is tourmaline, a robust, ubiquitous mineral in most mineralized porphyry systems. Overall, a combination of physical and chemical characteristics including 1) macro-color, 2) morphology, 3) inclusion populations, and 4) trace-element compositions are useful in discriminating between porphyry- versus non-porphyry-derived (or related) tourmaline in su
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Marsh, S. F., Z. V. Svitra, and S. M. Bowen. Distributions of 14 elements on 63 absorbers from three simulant solutions (acid-dissolved sludge, acidified supernate, and alkaline supernate) for Hanford HLW Tank 102-SY. Office of Scientific and Technical Information (OSTI), 1994. http://dx.doi.org/10.2172/10177119.

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