Microstructural aspects of crack propagation in ceramics

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ID: 113019
1970
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Abstract
X-ray microradiographic examination supported by optical and SEM observations was used to study crack propagation in various ceramics, including glasses and cubic and noncubic polycrystalline bodies of different grain sizes. The nature of crack propagation in ceramics was often extremely complex. While cracks in glassy materials were generally simple, as would be expected, in cubic and non-cubic polycrystalline specimens both wandering and branching of cracks was observed. In cubic materials, wandering and branching occurred on the scale of the grain size, while in fine grain, non-cubic materials these were on a multi-grain scale. Results are consistent with the grain size dependence of fracture energy. Elastic anisotropy and thermal expansion anisotropy were suggested as major factors in crack wandering and branching.
Reference Key
wu1970journalmicrostructural Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors C. Cm. Wu;S. W. Freiman;R. W. Rice;J. J. Mecholsky;C. Cm. Wu;S. W. Freiman;R. W. Rice;J. J. Mecholsky;
Journal journal of materials science
Year 1970
DOI
doi:10.1007/BF02402753
URL
https://dx.doi.org/10.1007/BF02402753
Keywords
materials science polymer sciences solid mechanics general classical mechanics characterization and evaluation of materials crystallography and scattering methods

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