IMECH-IR  > 流固耦合系统力学重点实验室
Size-dependent surface/interface energy and interface adhesive properties
Liang LH(粱立红)1; Wei H2; Wei YG(魏悦广)1
Source Publication13th International Conference on Fracture 2013, ICF 2013
Conference Name13th International Conference on Fracture 2013, ICF 2013
Conference DateJune 16, 2013 - June 21, 2013
Conference PlaceBeijing, China
AbstractInterface energy reflects the stability of the related systems including the interface. Interface properties show the size effects as the scale of the systems decreases, especially in nanoscale. In this report, a systematic thermodynamic model on the surface energy, the interface energy and their size effects are reviewed, based on which, an analytical expression about the size-dependent interface adhesive energy is developed. According to the interface cohesive zone model, the size-dependent interface adhesive strength of the nanostructured coats is predicted combining with the size-dependent interface separate displacement. The model predicts the enhanced interface binding strength of the nanostructured ceramic coat bonded on the metallic matrix compared to the conventional ceramic coat based on the reduced surface roughness and the interface separate displacement. The theoretical prediction is in agreement with the experimental observation. Copyright © (2013) by International Conference on Fracture.
KeywordCeramic materials Fracture Nanotechnology Surface roughness Analytical expressions Cohesive zone model Interface adhesives Interface binding strength Interface cohesion Interface energy Nano scale Nanostructured ceramic
Indexed ByEI
Document Type会议论文
Affiliation1.LNM, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China;
2.Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
Recommended Citation
GB/T 7714
Liang LH,Wei H,Wei YG. Size-dependent surface/interface energy and interface adhesive properties[C]13th International Conference on Fracture 2013, ICF 2013,2013:4707-4710.
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