Gelcasting of aluminum nitride ceramics using hydantion epoxy resin as gelling agent

被引：23

作者：

Jiang, Chao ^{[1
]}

Gan, Xueping ^{[1
]}

Zhang, Dou ^{[1
]}

Xie, Rui ^{[1
]}

Zhou, Kechao ^{[1
]}

机构：

[1] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2013年 / 39卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Thermal conductivity; AIN ceramics; Gelcasting; Relative density;

D O I：

10.1016/j.ceramint.2013.05.060

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：

A gelling system based on the polymerization of Hydantion epoxy resin and 3,3'-Diaminodipropylamine (DPTA) was developed for gelcasting aluminum nitride (AIN) ceramics. The effect of the dispersant concentration and solid loading on the theological behavior of the slurries was investigated. The highest solid loading of 58 vol% AIN ceramic slurry and the highest green relative density of 64.5% were obtained with the addition of 15 wt% Hydantion epoxy resin and 0.3 wt% dispersant Polyethyleneimine (PEI). With the addition of 20 wt% Hydantion epoxy resin, the flexural strength of AIN green body reached as high as 34.5 MPa. For sintered AIN ceramics, the relative density, flexural strength and thermal conductivity reached 99.6%, 360 MPa and 185 W/m K, respectively. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：9429 / 9433

页数：5

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