Erosion behaviour of B4C-based ceramic composites

被引：34

作者：

Liu, Changxia ^{[1
]}

Sun, Junlong ^{[1
]}

机构：

[1] Ludong Univ, Key Lab Adv Mfg & Automat Technol, Yantai 264025, Shandong, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2010年 / 36卷 / 04期

关键词：

Hot pressing; B4C; TiB2; Erosion behaviour; Microstructures; MECHANICAL-PROPERTIES; ALUMINA CERAMICS; CARBIDE;

D O I：

10.1016/j.ceramint.2009.12.024

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：

In this paper, TiO2 was introduced into boron carbide and B4C-based ceramic composites were obtained by uniaxial hot pressing. The mechanical properties, relative density and erosion behaviour of B4C-based ceramic composites were investigated. X-ray analysis showed that the fabricated composites were composed of B4C, TiB2 and C phases. SEM technique was employed to observe the original polished surfaces and the eroded surfaces of B4C-based ceramic composites. The effect of impingement angle, impact velocity of SiC erodent particle, relative density and phase ratio on the erosion rate of B4C-based ceramic composites was determined. It was found that the erosion rate of B4C-based ceramic composites increased with increasing of impingement angle and erodent particle velocity. The relative density and phase ratio influenced the erosion rate of B4C-based ceramic composites significantly by influencing their mechanical properties. (C) 2010 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：1297 / 1302

页数：6

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