PREPARATION OF MICRO-COILED SIC AND TIC FIBRES BY VAPOUR PHASE METALLIZING OF MICRO-COILED CARBON FIBRES

摘要

Micro-coiled fibres of SiC and TiC were prepared by the vapour phase metallizing of micro-coiled carbon fibres with full preservation of the coiling morphology of the source coiled carbon fibres, and their preparation conditions and bulk electrical resistivity were examined. The SiC1,0 coils were obtained at 1400 degrees C for 2 h, and TiC1.0 coils were obtained at 1100-1200 degrees C for 1.5 h. The bulk resistivity of the coiled TiC fibres sharply decreased with the bulk density and was 10(-2) S-1 cm at 1.4 g cm(-3). [References: 17]