摘要: The strength of hot-pressed Si3N4 containing different MgO/SiO2 molar ratios was studied. Significant increases in strength at 1400 C were observed as the MgO/SiO2 ratio increased to 3-4. Smaller decreases in strength at both 25 C... 展开
作者 | andersson, c. a. lange, f. f. | ||
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原报告号 | ADA016803 | 总页数 | 48 |
主办者 | Navy;Non Paid ADAS | ||
报告分类号 | [71D - Ceramics, Refractories, & Glass] | ||
报告类别/文献类型 | AD / NTIS科技报告 | ||
关键词 | Silicon nitrides Strength(Mechanics) Magnesium oxides Silicon dioxide Creep Crack propagation Ceramic materials Silicon carbides Hot pressing Powders Ratios Oxygen Oxides High temperature Grain boundaries Mechanical properties Fatigue(Mechanics) Stresses Impurities Calcium oxides Cracks Failure(Mechanics) Cracking(Fracturing) Brittleness Bearings |