Chemical Stability of Ceramics Based on Y2.5Nd0.5Al5O12 Oxide with a Garnet Structure in Various Environments

IF 0.9 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Inorganic Materials Pub Date : 2024-02-04 DOI:10.1134/S0020168523080010

L. S. Alekseeva, A. V. Nokhrin, A. I. Orlova, M. S. Boldin, A. V. Voronin, A. A. Murashov, V. N. Chuvil’deev

引用次数: 0

Abstract

Oxide Y_2.5Nd_0.5Al₅O₁₂ with the structure of the garnet mineral has been obtained by coprecipitation after annealing at 1000°C. Fine-grained ceramics has been produced by spark plasma sintering based on synthesized powder. The relative density of the ceramics was 99.1%. The chemical stability of the ceramics has been studied in static mode at 90°C in distilled and mineral water, acidic solution, and alkaline solution. The minimum rates of Y and Nd leaching were 10^–10 to ~10^–6 g/(m² day). The effect of the contact environment on the rate and mechanism of Y and Nd leaching from the Y_2.5Nd_0.5Al₅O₁₂ ceramics was studied during 42 days.

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基于具有石榴石结构的 Y2.5Nd0.5Al5O12 氧化物的陶瓷在各种环境中的化学稳定性

在 1000°C 退火后，通过共沉淀法获得了具有石榴石矿物结构的氧化物 Y2.5Nd0.5Al5O12。以合成粉末为基础，通过火花等离子烧结法生产出了细粒陶瓷。陶瓷的相对密度为 99.1%。在 90°C 的蒸馏水、矿泉水、酸性溶液和碱性溶液中，以静态模式研究了陶瓷的化学稳定性。钇和钕的最小沥滤率为 10-10 至 ~10-6 克/（平方米-天）。在 42 天的时间里，研究了接触环境对 Y2.5Nd0.5Al5O12 陶瓷中 Y 和 Nd 沥滤速率和机制的影响。

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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.