PREPARATION OF SIC_P/6066AL COMPOSITE AS SHEATH OF HIGH-T_C SUPERCONDUCTING CABLE FOR TRANSMITTING ELECTRICITY

High-T_C Superconducting Cable for transmitting electricity will scale up application extension before long. Superconducting Cable consists of cable core made up of superconducting material and cladding argentine and structure-functional material complying with cable requirement for transmitting electricity. As a kind of composite with high tensile strength, high elastic module, moderate elongation and high heat-exchange, low thermal expansion, SiCp/6066Al composite will have extensive application as sheath of high-T_C superconducting cable for transmitting electricity. Thus the advance in high-T_C superconducting cable has been referred .The detailed experiment on preparation of SiCp/6066Al composite as sheath of high-T_C superconducting cable for transmitting electricity by new-style powder metallurgy technology—sheathed hot extrusion. Mechanical, damping and thermal characteristics have been tested. Even microstructure and clean interface between SiCp and Al alloy matrix have been found via OM, SEM, TEM, etc. The authors explained internal relations between characteristics and microstructure. The characteristics of the composite reach to established characteristic requirement for high-T_C superconducting cable for transmitting electricity.