SINTERING OF POWDERS OF POLYAROMATIC MESOPHASE TO HIGH-STRENGTH ISOTROPIC CARBONS .1. INFLUENCE OF THE RAW-MATERIAL AND SINTERING CONDITIONS ON THE PROPERTIES OF THE CARBON MATERIALS

被引：53
作者：
HOFFMANN, WR
HUTTINGER, KJ
机构：
[1] Institut für Chemische Technik der Universität Karlsruhe, 76128 Karlsruhe
来源：
CARBON | 1994年 / 32卷 / 06期
关键词：
MESOPHASE; PARTICLE SIZE; SINTERING; HIGH-TEMPERATURE TREATMENT; FINE-GRAINED CARBONS;
D O I：
10.1016/0008-6223(94)90218-6
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：
The sintering of compacted mesophase powders of varying nature and particle size was studied. The sintered carbons were stepwise heat-treated to 2600-degrees-C, and their properties were determined after each step. The sintering process is composed of a transient liquid-phase sintering step and a subsequent reaction sintering step in the solid state. The investigation of both process steps and the properties of the heat-treated carbons indicate that the initial transient liquid-phase sintering is the decisive step, and thus predetermines the properties of the heat-treated carbons. After graphitization treatment of sintered carbons at 2400-degrees-C, flexural strength values up to 160 MPa were obtained. Criteria for the selection of the mesophase, the particle size, and the sintering conditions are discussed.
引用
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页码：1087 / 1103
页数：17
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