Pressureless sintering of hexagonal boron nitride powders

被引：11
|
作者：
Ay, N. [1 ]
Tore, I. [1 ]
机构：
[1] Anadolu Univ, Dept Mat Sci & Engn, TR-26555 Eskisehir, Turkey
来源：
NITRIDES AND OXYNITRIDES III | 2007年 / 554卷
关键词：
hexagonal boron nitride; pressureless sintering; additive; characterization;
D O I：
10.4028/www.scientific.net/MSF.554.207
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Pressureless sintering of hexagonal boron nitride (BN) with and without additives was performed using a powder which was previously nitrided at 900 degrees C and then heat treated at 1400 degrees C. Sintering additives were B2O3 (2, 4, 6 wt %) and Y2O3 (2, 4, 6 wt %) and sintering temperatures was 1900 degrees C. Sintered samples were characterized by XRD, SEM, micro hardness, density and mercury porosimeter measurements. Maximum density values of samples were 1.56 g/cm(3) without additives and 1.63 g/cm(3) with additives. Hardness values of samples were found to improve with the presence of additives.
引用
收藏
页码：207 / +
页数：2
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