室温で保証試験を受けた常圧焼結窒化けい素材の高温強度

概要

論文の詳細を見る
In the present paper, the proof testing effects were discussed when the temperature conditions of the proof testing are different from those of actual loading. The experiments were conducted on sintered Si_3N_4 specimens under 4-point bending in the fast fracture mode. The 1000℃ strength distribution of sintered Si_3N_4 which had been proof tested at room temperature was compared with that of the virgin material. It was shown that the proof testing conducted at room temperature improved the strength distribution of the material at 1000℃. Though the strength distribution of the proof tested material did not exactly coincide with the theoretically predicted one, the discrepancy may be attributed to the statistical divergence caused from small sample size. So, it was concluded that the proof testing remains effective even if there exists a temperature difference between proof testing and actual loading.
社団法人日本機械学会の論文
1991-10-25