IMECH-IR  > 非线性力学国家重点实验室
Nano-size Effect of Interface Energy and Its Effect on Interface Fracture
Liang LH(梁立红); You XM(尤雪梅); Ma HS(马寒松); Wei YG(魏悦广); Liang LH
Source PublicationISCM II AND EPMESC XII, PTS 1 AND 2
Conference Name2nd International Symposium on Computational Mechanics
Conference DateNOV 30-DEC 03, 2009
Conference PlaceHong Kong, PEOPLES R CHINA
AbstractAn analytical model about size-dependent interface energy of metal/ceramic interfaces in nanoscale is developed by introducing both the chemical energy and the structure stain energy contributions. The dependence of interface energy on the interface thickness is determined by the melting enthalpy, the molar volume, and the shear modulus of two materials composing the interfaces, etc. The analytic prediction of the interface energy and the atomic scale simulation of the interface fracture strength are compared with each other for Ag/MgO and Ni/Al2O3 interfaces, the fracture strength of the interface with the lower chemical interface energy is found to be larger. The potential of Ag/MgO interface related to the interface energy is calculated, and the interface stress and the interface fracture strength are estimated further. The effect of the interface energy on the interface strength and the behind mechanism are discussed.
KeywordInterface Energy Size Effect Fracture Strength Stress
Indexed ByCPCI(ISTP)
Document Type会议论文
Corresponding AuthorLiang LH
Recommended Citation
GB/T 7714
Liang LH,You XM,Ma HS,et al. Nano-size Effect of Interface Energy and Its Effect on Interface Fracture[C]ISCM II AND EPMESC XII, PTS 1 AND 2,2010:305-309.
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