Properties of silicon carbide-reinforced graphite composites prepared by a reactive sintering method

被引：3

作者：

Han Yong-jun ^{[1
,2
]}

Li Qing-bin ^{[1
,2
]}

Yan Qing-zhi ^{[1
]}

Tang Rui ^{[3
]}

机构：

[1] Univ Sci & Technol Beijing, Inst Special Ceram & Powder Met, Beijing 100083, Peoples R China

[2] Pingdingshan Univ, Sch Chem & Chem Engn, Pingdingshan 467000, Peoples R China

[3] Nucl Power Inst China, Sci & Technol Reactor Fuel & Mat Lab, Chengdu 610041, Peoples R China

来源：

NEW CARBON MATERIALS | 2015年 / 30卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Graphite composite; Reactive sintering; SiC particle reinforced; Friction coefficient; SIC COMPOSITES; ELECTRODES; FRICTION; MCMB;

D O I：

10.19869/j.ncm.1007-8827.2015.01.005

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Silicon carbide-reinforced graphite composites were prepared by hot-pressing mixtures of flake graphite and Si powder with various mass ratios under vacuum. The microstructure and phase compositions were characterized by SEM and XRD. Results indicated that Sic, resulting from the reaction between graphite and silicon, was uniformly dispersed in the graphite matrix. The bend strength of the composites increased from 112 to 206 MPa with increasing silicon content from 28. 06 to 37.94 mass%. The oxidation resistance of the composites increased with. their silicon content. The coefficient of friction of the composites remainedat a low constant value of about 0. 1 when the Si content was below 31.46 mass%

引用

页码：92 / 96

页数：5

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