Study on Pre-Oxidized Carbon Fiber Reinforced Pantograph Carbon Slide Plates

被引：0
|
作者：
Zhao Y. [1 ]
Li J. [1 ]
Yang Z. [1 ]
Gao G. [1 ]
Wei W. [1 ]
Wu G. [1 ]
机构：
[1] School of Electrical Engineering, Southwest Jiaotong University, Chengdu
来源：
Tiedao Xuebao/Journal of the China Railway Society | 2024年 / 46卷 / 06期
关键词：
composites; electrical and thermal conductivity properties; mechanical properties; pantograph carbon slide plates; pre-oxidized carbon fiber;
D O I：
10.3969/j.issn.1001-8360.2024.06.006
中图分类号：
学科分类号：
摘要：
The pre-oxidized carbon fiber reinforced pantograph carbon slide plate was prepared using processes such as hot pressing and calcination with pre-oxidized carbon fibers(OPF), pitch and coke as raw materials. The electrical and thermal conductivity as well as the mechanical properties of the pantograph carbon slide plates with different OPF contents were disscussed, and the microstructure of the composite material was observed with the scanning electron microscopy (SEM), polarized light microscopy (POM), X-ray diffractometer (XRD) and other instruments. The results show that the improvement of properties of slide plate material is related to the co-carbonized interface between the OPF and pitch and the formation of microcrystalline network at the interface and the substrate. The composite material consisting of 1. 5% OPF has good electrical, thermal conductivity and mechanical properties with electrical and thermal conductivity of 279. 33 S/cm and 3. 37 W/(m• K), compressive and flexural strength of 155. 00 MPa and 44. 85 MPa respectively, which meet the performance requirements of pantograph carbon slide plates. © 2024 Science Press. All rights reserved.
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页码：56 / 64
页数：8
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