TiB_2焼結体の高温強度

概要

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High temperature strength of pressureless sintered TiB_2 with Cr and C additives had been investigated. The bending strength was measured for temperatures between room temperature and 1400℃ in air and in argon atmosphere. The bending strength was 385 MPa at room temperature and increased from 560 MPa at 800℃ to 620 MPa at 1000℃ in air. The high temperature strength in average in argon atmosphere was nearly constant in the temperature range from room temperature up to 1400℃. The fracture surfaces created in the temperature range between room temperature and 1400℃ in argon atmosphere showed both transgranular and intergranular fracture modes.
社団法人日本セラミックス協会の論文
1993-09-01