On the structural unit model of grain boundary structure |
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| Authors: | A P Sutton |
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| Institution: | Department of Metallurgy and Science of Materials , Oxford University , Parks Road, Oxford, OX1 3PH, England |
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| Abstract: | Abstract A critique of the structural unit model is presented. It is shown that the predictive capacity of the model is severely limited when it is applied to boundaries with relatively-high-index rotation axes. Recent computer simulations suggest that ‘high index’ means 〈221〉 and above. A new approach to grain boundary structure is needed for mixed tilt and twist boundaries. |
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| Keywords: | X-ray diffraction solid-state transformation synchrotron radiation tin |
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