Comparison of the Pore Structure of Calciothermic and Magnesiothermic Niobium and Tantalum Powders

IF 0.7 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Inorganic Materials Pub Date : 2025-06-30 DOI:10.1134/S0020168525700165

V. M. Orlov, M. V. Kryzhanov

引用次数: 0

Abstract

Using the TERRA software suite, we have evaluated the adiabatic temperature of reactions of Ta₂O₅ and Mg₄Ta₂O₉ with calcium (2900 and 2362 K, respectively). We have carried out a comparative analysis of the pore structure of niobium and tantalum powders prepared via magnesium and calcium vapor reduction of niobium and tantalum oxide compounds and identified characteristic features of the pore structure of these types of powder. Assumptions are made as to the causes of the formation of the coarser pore structure of the calciothermic powders.

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钙热法和镁热法铌钽粉体孔隙结构的比较

利用TERRA软件计算了Ta2O5和Mg4Ta2O9与钙（分别为2900 K和2362 K）反应的绝热温度。我们对氧化铌和氧化钽化合物通过镁和钙蒸气还原制备的铌和钽粉体的孔隙结构进行了对比分析，并确定了这两种粉体的孔隙结构特征。对钙热粉粗孔结构形成的原因作了假设。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Inorganic Materials 工程技术-材料科学：综合

CiteScore

1.40

自引率

25.00%

发文量

审稿时长

3-6 weeks

期刊介绍： Inorganic Materials is a journal that publishes reviews and original articles devoted to chemistry, physics, and applications of various inorganic materials including high-purity substances and materials. The journal discusses phase equilibria, including P–T–X diagrams, and the fundamentals of inorganic materials science, which determines preparatory conditions for compounds of various compositions with specified deviations from stoichiometry. Inorganic Materials is a multidisciplinary journal covering all classes of inorganic materials. The journal welcomes manuscripts from all countries in the English or Russian language.