Reaction Process and Characteristics of Microstructure of AlN Composite Synthesized by Lanxide Method

Abstract

Abstract: The growth process of AlN synthesized by Lanxide method was studied. XRD analysis shows that AlN crystal grows in a specific direction [0001]. During nitridation, AlN crystal grew from the metal base surface toward atmosphere, then formed a parallel and rod-like microstructure. Durillg initia1 reaction, there was a significant Mg-evaporation phenomenon, and magnesium gas reacted with nitrogen or oxygen to form a porous and loosen surface layer. It was also found that there was a Si-rich process during nitridation which caused composition unhomogenity in product.

Key words: AlN aluminum, alloy, reaction, growth

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WANG Qun,WANG Wenzhong,GAO Qin,SHEN Yuhui,CHEN Jianfeng. Reaction Process and Characteristics of Microstructure of AlN Composite Synthesized by Lanxide Method[J]. Journal of Inorganic Materials.

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https://www.jim.org.cn/EN/Y1997/V12/I1/105

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