%0 Journal Article
%T ^MICROSTRUCTURE OF NANOCRYSTALLINE MATERIALS<br>几种纳米固体材料的显微结构特征
%A PING Dehai
%A LI Douxing
%A YE Hengqiang WU Xijun
%A <br>平德海
%A 李斗星
%A 叶恒强
%A 吴希俊
%J 金属学报
%D 1995
%I 
%X The grain boundaries in nanocrystalline palladium synthesized by the inert gas condensation and in situ compacting method have ordered and imperfect or disordered regions. Nanovoids are also observed at the interfaces. High density of dislocations are detected inside the grains and at the grain boundaries. Most of the interfaces in nanocrystalline Ti-Ni-Si and Fe-Mo-Si-B alloys produced by the amorphous crystallization have ordered structure. No obvious disordered regions and nanovoids are observed at the interfaces. However, the lattice fringes near the ordered grain boundaries or interfaces regions in the nanocrystalline materials produced by the various process show curved and a little distorted appearance. In comparison with the nanocrystalline palladium, the nanocrystalline alloys obtained from the amorphous crystallization have much lower density of dislocations.
%K nanocrystalline materials
%K grain boundary
%K defect
%K high resolution electron microscopy<br>固体材料
%K 晶界结构
%K 显微结构
%K 纳米材料
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=B840C7478FFE95CE077E6EAE2F8AB932&yid=BBCD5003575B2B5F&vid=4AD960B5AD2D111A&iid=0B39A22176CE99FB&sid=9C65ADEB5990B252&eid=656F8C8401D91023&journal_id=0412-1961&journal_name=金属学报&referenced_num=1&reference_num=1