MECHANICAL-PROPERTIES OF BETA-SIC PRESSURELESS SINTERED WITH AL2O3 ADDITIONS

被引：101

作者：

MULLA, MA

KRSTIC, VD

机构：

[1] Department of Materials and Metallurgical Engineering, Queen's University, Kingston

来源：

ACTA METALLURGICA ET MATERIALIA | 1994年 / 42卷 / 01期

关键词：

D O I：

10.1016/0956-7151(94)90072-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Mechanical properties of pressureless sintered SiC with Al2O3 addition were measured. The increase in fracture toughness and strength is attributed to the presence of a liquid phase which results in the formation of platelets of an alpha-SiC. The highest values for flexural strength and toughness were measured on samples with approximately 10 wt% Al2O3 addition. Pull out, crack bridging and crack deflection are identified as the major strengthening and toughening mechanisms.

引用

页码：303 / 308

页数：6

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