高温合成铸造陶瓷材料 Al2O3-Cr2O3 + ZrO2

IF 0.5 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY International Journal of Self-Propagating High-Temperature Synthesis Pub Date : 2024-07-01 DOI:10.3103/s1061386224700055

P. A. Miloserdov, V. A. Gorshkov

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引用次数: 0

摘要

摘要从含有钼（VI）和铬（III）氧化物以及 Al/Zr 作为联合还原剂的高放热热石型混合物中，通过金属热 SHS 法制备了由 Al2O3-Cr2O3 固溶体和均匀分布在其中的 ZrO2 夹杂物组成的铸造氧化物陶瓷材料。研究了绿色混合物质量对最终产品的合成参数、成分和微观结构的影响。确定了高温合成由 80 wt % Al2O3、10 wt % Cr2O3 和 10 wt % ZrO2 组成的铸造复合氧化物材料的最佳条件。

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High-Temperature Synthesis of Cast Ceramic Material Al2O3–Cr2O3 + ZrO2

Abstract

A cast oxide ceramic material consisting of Al₂O₃–Cr₂O₃ solid solution and ZrO₂ inclusions uniformly distributed in it was prepared through metallothermic SHS from highly exothermic thermite-type mixtures containing molybdenum (VI) and chromium (III) oxides and Al/Zr as a combined reducing agent. The influence of green mixture mass on the synthesis parameters, composition, and microstructure of the final products was studied. The optimal conditions for high-temperature synthesis of cast composite oxide material consisting of 80 wt % Al₂O₃, 10 wt % Cr₂O₃, and 10 wt % ZrO₂ were determined.

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来源期刊

International Journal of Self-Propagating High-Temperature Synthesis MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

1.00

自引率

33.30%

发文量

期刊介绍： International Journal of Self-Propagating High-Temperature Synthesis is an international journal covering a wide range of topics concerned with self-propagating high-temperature synthesis (SHS), the process for the production of advanced materials based on solid-state combustion utilizing internally generated chemical energy. Subjects range from the fundamentals of SHS processes, chemistry and technology of SHS products and advanced materials to problems concerned with related fields, such as the kinetics and thermodynamics of high-temperature chemical reactions, combustion theory, macroscopic kinetics of nonisothermic processes, etc. The journal is intended to provide a wide-ranging exchange of research results and a better understanding of developmental and innovative trends in SHS science and applications.