Inhibiting crystallization mechanism of h-BN on α-cordierite in BN-MAS composites

被引：20

作者：

Cai, Delong ^{[1
]}

Yang, Zhihua ^{[1
]}

Duan, Xiaoming ^{[1
]}

He, Peigang ^{[1
]}

Wang, Shengjin ^{[1
]}

Yuan, Jingkun ^{[1
]}

Rao, Jiancun ^{[1
]}

Jia, Dechang ^{[1
]}

Zhou, Yu ^{[1
]}

机构：

[1] Harbin Inst Technol, Inst Adv Ceram, Sch Mat Sci & Engn, Harbin 150001, Peoples R China

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2016年 / 36卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Hot pressing; Liquid infiltration; Ionic diffusion; Interface structure; Crystallization; BORON-NITRIDE COMPOSITE; MICROSTRUCTURAL DEVELOPMENT; ELECTRICAL-RESISTIVITY; PHASE; CERAMICS; GLASS; SIZE;

D O I：

10.1016/j.jeurceramsoc.2015.10.007

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

MAS-BN composites were prepared by hot pressed sintering. The phase transformation of magnesium aluminum silicate ceramic (MAS) was investigated with special attention to the inhibiting crystallization mechanism of h-BN. The resulting data suggest particular pathways for the inhibiting effect of h-BN on the crystallization of MAS. The nucleophilic attack of N on M (M = Mg2+, Al3+ and Si4+) and electrophilic attack of B on O are the crucial factors for the formation of amorphous MAS phase. In addition, a chemical bonding formed between h-BN and MAS and the atoms of the matrix diffuse into the h-BN layer, leading to a strong bonding interface. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：905 / 909

页数：5

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