MECHANICAL-PROPERTIES OF HOT-PRESSED B-B4C MATERIALS

被引：59

作者：

CHAMPAGNE, B

ANGERS, R

机构：

[1] Department of Mining and Metallurgy, Université Laval, Quebec, Quebec

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1979年 / 62卷 / 3-4期

关键词：

D O I：

10.1111/j.1151-2916.1979.tb19042.x

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：

Elastic modulus and flexural strength were measured at room temperature for solid pieces hot‐pressed at 1900 to 2600 K from mixtures of B4C powder and ≤15 wt% B powder. Regression analysis showed that elastic modulus and flexural strength are not significantly affected by these boron additions. Elastic modulus is related to porosity and flexural strength to porosity and grain size. The fracture surface energy of boron carbide was evaluated. X‐ray diffraction and chemical analyses showed that the specimens were composed entirely of boron carbide after hot‐pressing. Lattice constants increased with the initial boron content. Copyright © 1979, Wiley Blackwell. All rights reserved

引用

页码：149 / 153

页数：5

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