Binderless Carbon/Graphite Materials

作     者：Zhou, SM Xia, JT Yan, LC 

作者机构：Dept. of Chemistry and Chemical Engineering Hunan University Changsha 410082 China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：1997年第13卷第3期

页      面：184-188页

核心收录：

学科分类：0817[工学-化学工程与技术] 0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0802[工学-机械工程] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 

主　　题：Carbon 

摘      要：High performance binderless carbon bodies can be manufactured from the mesophase raw material derived from petroleum pitch, which is ground into fine powders less than 10 mu m, and directly moulded, then sintered at 1000 degrees C without any kind of binder. The sintered bodies have a bulk density of 1.69 g/cm(3), bending strength of 91.2 MPa. Shore hardness of 100, porosity of only 7.2%, and electrical resistivity of 60x10(-6) Omega m. The bodies graphitized at 2800 degrees C have a bulk density of 1.88 g/cm(3), bending strength of 82 MPa. Shore hardness of 85, porosity of 5.4%, and electrical resistivity of 12x10(-6) Omega m. The scanning electron micrographs of the section show that the bodies possess an extremely dense and homogeneous structure. Infra-red spectrum analysis shows that carbonyls introduced when ground or activated are one of the key factors determining the selfbinding and selfsintering properties of the mesophase fine powders, and the structure and strength of the sintered bodies.