IGTC-117 Injection Molding of SiC Turbocharger Rotor(Organized Session IV CERAMICS FOR GAS TURBINES AND TURBOCHARGERS)

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概要

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• Fabrication of SiC turbocharger rotors by injection molding is described. Properties of the material and component of sintered SiC are compared with those of Si_3N_4. A mixture of SiC, boron carbide, and carbon black powders, with water was prepared as the starting slurry. A SiC sintered body with a bending strength of 600MPa was obtained. A ceramic-powder/organic-binder system, which provided both injection molding feasibility and high strength after sintering, was developed by use of SiC powders consisting of 40% coarse and 60% fine particles. Optimization of the parameters in kneading, molding, binder removal, and sintering processes resulted in a yield rate of 83% for 150 rotors fabricated. The average burst speed of SiC rotor was 1.23×10^5rpm, nearly 30% lower than that of Si_3N_4 rotor with the same dimensions.

• 公益社団法人日本ガスタービン学会の論文

著者

• Honma T.

  Toyota Central R. & D. Labs. Inc.

• Wada S.

  Toyota Central R. & D. Labs., Inc.

• Masaki H.

  Toyota Central R. & D. Labs., Inc.

• Tani T.

  Toyota Central R. & D. Labs., Inc.

関連論文

• IGTC-117 Injection Molding of SiC Turbocharger Rotor(Organized Session IV CERAMICS FOR GAS TURBINES AND TURBOCHARGERS)

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