Phase Transformation and Thermal Conductivity of Hot-Pressed Silicon Carbide Containing Alumina and Carbon |
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| Authors: | Tosikazu Sakai Toshihiko Aikawa |
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| Affiliation: | National Institute for Research in Inorganic Materials, Sakura-mura, Ibaraki 305, Japan;Materials Research Laboratory, Central Engineering Laboratories, Nissan Motor Company, Ltd., Yokosuka 237, Japan |
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| Abstract: | Phase transformation and thermal conductivity of hot-pressed β-SiC with Al2O3 and carbon additions were studied. Densification rate was a complex function of both Al2O3 and carbon. Simultaneous additions of Al2O3 and carbon accelerated the 3C → 4H phase transformation. Carbon additions lowered the thermal conductivity of the compact as did the high-temperature hot-pressing. The 3C → 4H transformation and the thermal conductivity were deduced to be related to each other. |
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