### Calculation of Youngs modulus for nanocrystalline metallic samples

2019-08-14 07:35:36

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责任者: Stepanov, Yu.N.;Alymov, M.I. 单位: Inst. of Metal. and Mat. Sci., RAS, Moscow, 117334, Russian Federation 来源出处: Metally,2004,(3):65-69 摘要: Youngs modulus of nanocrystalline gold is calculated by the Voigt, Reuss, and three-dimensional models. The elastic modulus of a grain-boundary phase is determined. The calculated and experimental data are compared. The most precise model is found to be the three-phase model (the error is about 20%). It is found that there is no point in using the Voigt model. An analytical expression is proposed to calculate Youngs modulus; its accuracy is higher than the accuracy provided by the models given above. 关键词: Nanostructured materials;Phase composition;Mathematical models;Grain boundaries;Gold;Elastic moduli;Calculations;Three-phase model