HIPed Si3N4 for High Temperature Structural Applications at 1400°C
作者： Isao Tanaka , Giuseppe Pezzotti , Taira Okamoto , Yoshinari Miyamoto , Koichi Niihara
DOI: 10.1007/978-94-011-2900-8_12
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摘要: Excellent time-dependent strength up to 1400°C has been demonstrated in HIPed high-purity Si3N4 without additives. Lifetime at under static loading of 300 MPa was, found be >240 h with very small creep deformation rate about 1 x 10-5 h-1, which were far better than presently available non-HIPed Si3N4s appeared literatures. Selected additives have systematically doped onto this pure system and their effects on the time dependent mechanical properties around analyzed by a new convenient method proposed authors.
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