セラミックスの新しい熱衝撃試験法

概要

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Thermal shock testing should aim at determining a definite value for the thermal shock properties of materials, and the thermal shock properties should be characterized by two parameters : (1) thermal shock strength, which represents a material's resistance to fracture, and (2) thermal shock fracture toughness, which denotes a material's resistance to crack propagation. For effectual thermal shock testing, it is essential that these parameters should be evaluated directly from thermal loading. The arc-discharge heating method reported in a previous work enables an evaluation of these parameters directly from the electrical power charge. An infrared radiation heating technique proposed here will also make it possible to estimate these parameters directly from the charged electric power. This method can be applied to a wide range of ceramics.
社団法人日本機械学会の論文
1993-12-25