Fracture Toughness and Subcritical Crack Growth of Small Crack in Silicon Nitride at Room Temperature
نویسندگان
چکیده
منابع مشابه
Mode I Fracture Toughness of a Small-Grained Silicon Nitride: Orientation, Temperature, and Crack Length Effects
The Mode I fracture toughness (KIC) of a small-grained Si3N4 was determined as a function of hot-pressing orientation, temperature, testing atmosphere, and crack length using the single-edge precracked beam method. The diameter of the Si3N4 grains was <0.4 μm, with aspect ratios of 2–8. KIC at 25°C was 6.6 ± 0.2 and 5.9 ± 0.1 MPa?m1/2 for the T–S and T–L orientations, respectively. This differe...
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ژورنال
عنوان ژورنال: Journal of the Ceramic Society of Japan
سال: 1995
ISSN: 0914-5400,1882-1022
DOI: 10.2109/jcersj.103.1063