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 con-tents were disscussed,and the microstructure of the composite material was observed with the scanning electron micros-copy(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.
维普
万方数据