MgAlON的合成与烧结：烧结添加剂的影响

IF 0.5 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY International Journal of Self-Propagating High-Temperature Synthesis Pub Date : 2025-01-20 DOI:10.3103/S1061386224700286

T. G. Akopdzhanyan, D. I. Abzalov

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引用次数: 0

摘要

采用Al + Al2O3 + MgO + Mg(ClO4)2的自蔓延高温合成方法，掺杂烧结剂LiF、CaCO3或La2O3 + Y2O3 + MgO，并进行无压烧结制备MgAlON陶瓷。研究了添加剂对合成产物的燃烧过程、相形成及其后续烧结的影响。结果表明，加入10% CaCO3可以降低燃烧温度，然后停止燃烧前缘。结果表明，烧结陶瓷材料的密度达到理论值的90%。当CaCO3掺杂量为0.6 wt %时，烧结样品的密度最高（3.3 g/cm3），透光率最高（16%）。

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Synthesis and Sintering of MgAlON: Influence of Sintering Additives

MgAlON ceramics were prepared by combined use of self-propagating high-temperature synthesis of Al + Al₂O₃ + MgO + Mg(ClO₄)₂ mixtures doped with sintering agent LiF, CaCO₃ or La₂O₃ + Y₂O₃ + MgO and pressureless sintering. The effect of additives on the combustion process and phase formation of synthesized products, as well as their subsequent sintering was studied. Introduction of 10 wt % CaCO₃ was shown to lower the combustion temperature followed by stopping the combustion front. It was revealed that the density of sintered ceramic materials reaches 90% of the theoretical value. The sintered sample prepared by doping with 0.6 wt % CaCO₃ was found to possess the highest density (3.3 g/cm³) and light transmittance (16%).

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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.