金属材料双晶体薄板界面能密度的尺寸效应
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摘要
界面能密度是刻画材料界面力学性质的一个重要的物理量,而在纳米尺度由于双晶体薄板具有较大的比界面积,显现出与体材料状态下不同的尺寸相关的力学性能。本文采用分子动力学的方法,计算了多种典型FCC金属晶体形成的双晶体薄板的界面能密度。研究表明,对于双晶体薄板,不论是拉格朗日界面能密度还是欧拉界面能密度,都随着双晶体薄板厚度的增加而增加,并逐渐趋近于体材料界面能密度的值。
引文
1.Carroll,L.,M.Sternitzke,and B.Derby,Silicon carbide particle size effects in alumina-based nanocomposites.Acta materialia,1996.44(11):p.4543-4552.
2.Reynaud,E.,et al.,Nanofillers in polymeric matrix:a study on silica reinforced PA6.Polymer,2001.42(21):p.8759-8768.
3.Jordan,J.,et al.,Experimental trends in polymer nanocomposites-a review.Materials science and engineering:A,2005.393(1):p.1-11.
4.Suryanarayana,C.and N.Al-Aqeeli,Mechanically alloyed nanocomposites.Progress in Materials Science,2013.58(4):p.383-502.
5.Shuttleworth,R.,The surface tension of solids.Proceedings of the physical society.Section A,1950.63(5):p.444.
6.Cammarata,R.,Surface and interface stress effects on interfacial and nanostructured materials.Materials Science and Engineering:A,1997.237(2):p.180-184.
7.Mi,C.,et al.,Atomistic calculations of interface elastic properties in noncoherent metallic bilayers.Physical Review B,2008.77(7):p.075425.
8.Johnson,R.,Alloy models with the embedded-atom method.Physical Review B,1989.39(17):p.12554.
2.Reynaud,E.,et al.,Nanofillers in polymeric matrix:a study on silica reinforced PA6.Polymer,2001.42(21):p.8759-8768.
3.Jordan,J.,et al.,Experimental trends in polymer nanocomposites-a review.Materials science and engineering:A,2005.393(1):p.1-11.
4.Suryanarayana,C.and N.Al-Aqeeli,Mechanically alloyed nanocomposites.Progress in Materials Science,2013.58(4):p.383-502.
5.Shuttleworth,R.,The surface tension of solids.Proceedings of the physical society.Section A,1950.63(5):p.444.
6.Cammarata,R.,Surface and interface stress effects on interfacial and nanostructured materials.Materials Science and Engineering:A,1997.237(2):p.180-184.
7.Mi,C.,et al.,Atomistic calculations of interface elastic properties in noncoherent metallic bilayers.Physical Review B,2008.77(7):p.075425.
8.Johnson,R.,Alloy models with the embedded-atom method.Physical Review B,1989.39(17):p.12554.