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Evolution of aluminum hydroxides at the initial stage of aluminum nitride powder hydrolysis
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| 【文章作者】Wang, Enhui;Chen, Junhong;Hu, Xiaojun;Chou, Kuo-Chih;Hou, Xinmei |
| 【文章摘要】 Aiming at better understanding and controlling the hydrolysis process of aluminum nitride (AIN), the evolution of aluminum hydroxides in AIN powder suspensions (2 wt%) at 60 degrees C at initial stage, i.e. 0-2 h was systematically investigated. The hydrolysis exhibits three interdependent stages including incubation time (first stage), formation, growth and transformation of boehmite (second stage), and formation and growth of bayerite (third stage). The incubation stage is caused by the dissolution of aluminum hydroxide compound on the surface of AIN powder. The formation and growth of boehmite and bayerite are characterized using various techniques including XRD, FT-IR, Raman, SEM and TEM. Based on these results, a clear schematic conversion diagram of the hydrolysis process of AIN powder at initial stage is presented. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved. |
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【卷】42 【ISSUE】9 【ISSUEID】815C0073
【文章期份】2016
【发布日期】2016/8/11 17:04:15
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