HIGH-QUALITY AND HIGHLY ORIENTED GRAPHITE BLOCK FROM POLYCONDENSATION POLYMER-FILMS

被引：116

作者：

MURAKAMI, M

NISHIKI, N

NAKAMURA, K

EHARA, J

OKADA, H

KOUZAKI, T

WATANABE, K

HOSHI, T

YOSHIMURA, S

机构：

[1] Matsushita Research Institute Tokyo, Inc., Tama-ku, Kawasaki, 214

来源：

CARBON | 1992年 / 30卷 / 02期

关键词：

GRAPHITE BLOCK; HIGH-QUALITY GRAPHITE; HIGHLY ORIENTED GRAPHITE; POLYIMIDE; MOSAIC SPREAD; MONOCHROMETER; FILTER;

D O I：

10.1016/0008-6223(92)90088-E

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

High-quality and highly oriented graphite was produced in the form of a thick block having physical properties close to those of single-crystal graphite. It was prepared from polyimide films of 25 mu-m thick with high molecular orientation. A sheaf of the films was heat treated in an argon atmosphere at temperatures up to 1000-degrees-C (carbonization) and then heated for graphitization up to 3000-degrees-C under a pressure between 100 and 300 kg/cm2. Graphite blocks as large as 150 x 50 x 13 mm3 were prepared, and the mosaic spread (the degree of preferred orientation) attained was 0.4-degrees.

引用

页码：255 / 262

页数：8

共 33 条

[1] ELASTIC CONSTANTS OF COMPRESSION-ANNEALED PYROLYTIC GRAPHITE [J].