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Intrinsic hardness of crystalline solids
The current status of various theoretical approaches to the prediction of material hardness has been reviewed. It is shown that the simple empirical correlation with the shear moduli generally provide very good estimates of the Vickers hardness. Semi-empirical models based solely on the strength of...
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| Format: | Article |
| Language: | English |
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Інститут надтвердих матеріалів ім. В.М. Бакуля НАН України
2010
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| Series: | Сверхтвердые материалы |
| Subjects: | |
| Online Access: | http://dspace.nbuv.gov.ua/handle/123456789/63473 |
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| Summary: | The current status of various theoretical approaches to the prediction of material hardness has been reviewed. It is shown that the simple empirical correlation with the shear moduli generally provide very good estimates of the Vickers hardness. Semi-empirical models based solely on the strength of the chemical bonds, although performed as well, are theoretically incomplete. First-principles calculations of the ideal stress and shear strength is perhaps the most reliable and theoretically sound approach available to compare theoretical predictions with experiment. |
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