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Fractured Toughness of Si3N4 Measured with Short Bar Chevron-Notched Specimens

机译：用短棒Chevron缺口试样测量si3N4的断裂韧性

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The short bar chevron-notched specimen is used to measure the plane strain fracture toughness of hot pressed Si3N4. Specimen proportions and chevron-notch angle are varied, thereby varying the amount of crack extension to maximum load (upon which K sub IC is based). The measured toughness (4.68 + or - 0.19 MNm to the 3/2 power) is independent of these variations, inferring that the material has a flat crack growth resistance curve.

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作者
Salem, J. A.; Shannon, J. L.;
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年度 1985
页码 p.1-19
总页数 19
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Crack propagation; Fracture strength; Hot pressing; Loads (Forces); Notch sensitivity; Notch tests; Plane strain; Silicon nitrides; Fatigue (Materials); Fracture mechanics; Notch strength;

机译：裂纹扩展;断裂强度;热压;载荷（力）;缺口敏感性;切口试验;平面应变;氮化硅;疲劳（材料）;断裂力学;切口强度;

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3. Experimental calibration of stress intensity factors of the ISRM suggested cracked chevron-notched Brazilian disc specimen used for determination of mode-l fracture toughness [J] . M. J. Iqbal, B. Mohanty International Journal of Rock Mechanics and Mining Sciences . 2006,第8期

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Fractured Toughness of Si3N4 Measured with Short Bar Chevron-Notched Specimens

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