%0 Journal Article
%T SIMULATION AND DISCUSSION OF THE LATTICE DISTORTION AND ELASTIC MODULUS OF NANOCRYSTALS<br>纳米晶体微观畸变与弹性模量的模拟研究
%A CHANG MING
%A YANG BAO-HE
%A CHANG HAO
%A <br>常 明
%A 杨保和
%A 常 皓
%J 物理学报
%D 1999
%I 
%X This paper reports a molecular dynamics simulation for atomic structure of copper nanocrystals, in which the grain size and lattice distortion were computed by X-ray differaction simulation, and the distribution of energy and elastic modulus was calculated. The results show that the lattice distortion was stored not only at grain boundaries but also in the grain. The increase of atomic radius leads to the reduction of the elastic modulus of the nanocrystals.
%K 纳米晶体
%K 微观畸变
%K 铜
%K 分子动力学
%K 弹性模量
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=52C3612222CD817DCE150CB355B1F9CD&yid=B914830F5B1D1078&vid=B6DA1AC076E37400&iid=DF92D298D3FF1E6E&sid=B7C3373069B7AC9F&eid=966030800FCA5D46&journal_id=1000-3290&journal_name=物理学报&referenced_num=6&reference_num=3