%0 Journal Article %T LATTICE EXPANSION IN NANOCRYSTALLINE PURE Ni
纯镍纳米晶体的晶格膨胀 %A LU Ke %A LIU Xuedong %A ZHANG Haoyue %A HU Zhuangqi %A
卢柯 %A 刘学东 %A 张皓月 %A 胡壮麒 %J 金属学报 %D 1995 %I %X The lattice structure of nanocrystalline pure Ni. prepared by high-frequency sputtering, has been investigated. The lattice parameter of nanocrystalline Ni samples with grain sizes ranging from 6 to 15 nm was measured accurately by X-ray diffraction. It was found that the lattice parameter(a) for the nanocrystallie samples is larger than that for the perfect Ni single crystal(ao), and the value of a increases significantly with the decrease of grain size. According to the thermodynamic theory, the lattice expansion in the nanocrystalline sample was explained. %K nanocrystalline materials %K lattice expansion %K Ni %K lattice parameter
纳米晶体 %K 晶格膨胀 %K 纯镍 %K 金属材料 %U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=D123E7DF74B97924BCD6536B53F472A0&yid=BBCD5003575B2B5F&vid=4AD960B5AD2D111A&iid=0B39A22176CE99FB&sid=67969BA850333433&eid=46CB27789995047D&journal_id=0412-1961&journal_name=金属学报&referenced_num=12&reference_num=1