Joining of SiC ceramic to graphite using Ni-Cr-SiC powders as filler

被引：29

作者：

Mao, Yangwu ^{[1
]}

Li, Shujie ^{[1
]}

Yan, Liansheng ^{[2
]}

机构：

[1] Beijing Univ Aeronaut & Astronaut, Sch Mat Sci & Engn, Beijing 100083, Peoples R China

[2] CASC, Inst 43, Acad 4, Xian 710025, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2008年 / 491卷 / 1-2期

关键词：

joining; SiC ceramic; high strength graphite; interfacial area;

D O I：

10.1016/j.msea.2008.01.082

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Joining of recrystallized SiC ceramic to high strength graphite has been successfully realized using Ni-Cr-SiC powders as filler. The obtained maximum three-point bending strength of joint is 39.5 MPa, which is equal to 98.8% of the strength of the graphite. Interdiffusions and chemical, T reactions take place in the weld zone. A reaction layer and an interlayer form in the interfacial area. The total thickness of the two layers is about 350 mu m. The reaction layer in contact with SiC ceramic is mainly composed of Ni2Si and C with a little Cr13C6. The interlayer existing between the graphite and the reaction layer is mainly composed of Cr13C6 and Ni2Si. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：304 / 308

页数：5

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