Strength-Anisotropy-Grain Size Relations in Ceramic Oxides
On the basis of high strengths observed at small grain size and crack formation observed at moderate grain size, a large grain‐size dependence of the strength of rutile ceramics was predicted. This dependence was investigated by experiment, and a grain‐size exponent greater than ‐1/3 was found. Tabu...
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Veröffentlicht in: | J. Amer. Ceram. Soc. 53: 232-6(21 May 1970) 1970-05, Vol.53 (5), p.232-236 |
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Hauptverfasser: | , |
Format: | Artikel |
Sprache: | eng |
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Online-Zugang: | Volltext |
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Zusammenfassung: | On the basis of high strengths observed at small grain size and crack formation observed at moderate grain size, a large grain‐size dependence of the strength of rutile ceramics was predicted. This dependence was investigated by experiment, and a grain‐size exponent greater than ‐1/3 was found. Tabulating literature data on the grain‐size dependence of strength and the degree of anisotropy of several oxide ceramics demonstrated a correlation between the degree of anisotropy and the grain‐size exponents; the grain‐size exponent increases with increasing anisotropy. The mechanism of fracture of single‐phase ceramics composed of anisotropic crystals is discussed. |
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ISSN: | 0002-7820 1551-2916 |
DOI: | 10.1111/j.1151-2916.1970.tb12083.x |