Synthesis of Aluminium Nitride by Direct Nitridation of Molten Al-Mg-Si Alloys

Journal of Inorganic Materials

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Synthesis of Aluminium Nitride by Direct Nitridation of Molten Al-Mg-Si Alloys

JIN Hai-Bo¹; CHEN Ke-Xin¹; ZHOU He-Ping¹; ZOU Zong-Shu²; WANG Wen-Zhong²

1. Department of Material Science and Engineering of Tsinghua University; Beijing 100084 China; 2. School of Materials and Metallurgy; Northeastern University; Shenyang 10006 China

Received:2000-03-27 Revised:2000-04-24 Published:2001-03-20 Online:2001-03-20

Abstract

Abstract: The feasibility of fabricating AlN was demonstrated. The effects of additives and nitridation temperature on the behavior in direct nitridation of molten
Al-Si-Mg alloys were investigated. The experiments were carried out at different temperatures under high pure nitrogen atmosphere. The main role of additive elements,
and the nitridation process of molten aluminium alloys were also discussed on the base of thermodynamic analysis. Moreover, the effects of temperature and additives
in raw alloys on the nitridation rate were investigated by TG experiments.

Key words: aluminum alloys, AlN, in situ reaction, thermodynamics and kinetics

CLC Number:

TQ174

JIN Hai-Bo,CHEN Ke-Xin,ZHOU He-Ping,ZOU Zong-Shu,WANG Wen-Zhong. Synthesis of Aluminium Nitride by Direct Nitridation of Molten Al-Mg-Si Alloys[J]. Journal of Inorganic Materials.

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Synthesis of Aluminium Nitride by Direct Nitridation of Molten Al-Mg-Si Alloys

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