| 热压氮化硅陶瓷在热疲劳下的机械损伤 |
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| 引用本文： | 仇建荣,沈菜水.热压氮化硅陶瓷在热疲劳下的机械损伤[J].无机材料学报,1991,6(1):53-59. |
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| 作者姓名： | 仇建荣 沈菜水 |
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| 作者单位： | 上海交通大学材料系
(仇建荣)，中国科学院上海硅酸盐研究所
(沈荣水，符锡仁)，中国科学院上海硅酸盐研究所(严东生) |
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| 摘 要： |
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| 关 键 词： | 氮化硅陶瓷 热压氮化硅 热疲劳 |
Mechanical Property Loss of Hot-Pressed Si_3N_4 under Thermal Fatigue Conditions |
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| Qiu Jianrong Shen Rongshui Fu Xiren Yan Dongsheng.Mechanical Property Loss of Hot-Pressed Si_3N_4 under Thermal Fatigue Conditions[J].Journal of Inorganic Materials,1991,6(1):53-59. |
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| Authors: | Qiu Jianrong Shen Rongshui Fu Xiren Yan Dongsheng |
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| Abstract: | Under rapid quenching conditions,the mechanical properties(strength,fracturetoughness)of HPSN ceramics decreased rapidly.Because of the promotion of tempe-rature to cracks,the high temperature property loss of HPSN is much greater thanthe room temperature property loss,although they are in the same thermal fatigueconditions.The strength loss is greaser than the fracture toughness loss,because ofthe surface cracks caused.by thermal fatigue.Under turbulent air thermal fatigue,the high temperature strength of HPSN alsodecreased,but the decreasing extent in turbulent air is much smaller than that underrapid quenching conditions. |
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| Keywords: | Thermal fatigue Residual strength Slow crack growth Hot-pressed Si_3N_4 Mechanical property loss Ceramics |
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