%0 Journal Article
%T HRTEM STUDY ON CRYSTAL STRUCTURE OF Zr_4Co_4Si_7 COMPOUND<br>Zr4Co4Si7晶体结构的高分辨电子显微分析
%A MAO Jianfu
%A HE Liantong
%A YE Hengqiang YANG Dezhuang
%A TANG Zhixiu
%A <br>茅建富
%A 贺连龙
%A 叶恒强
%A 杨德庄
%A 唐之秀
%J 金属学报
%D 1995
%I 
%X A study of the crystal structure of V-phase is preformed on Zr4Co4Si7 compound by means of various electron microscopic techniques.Results of electron diffraction analysis show that Zr_4Co_4Si_7 has a body -centered tetragonal structure with space group I4/mmm.Images taken by a high resolution transmission electron microscope(HRTEM) reveal the structure in atomic level.Big bright spots in 001] HRTEM image represent Ge-centered square antiprism columns,and the eight small bright spots around them represent Co-centered octahedron columns.Good agreement between the observed and simulated images has been obtained and thus confirmed the results proposed earlier by X-ray diffraction analysis.
%K V-phase(Zr_4Co_4Ge_7 type)
%K crystal structure
%K HRTEM technique<br>V相
%K 晶体结构
%K 金属硅化物
%K HREM
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=5687D6E2765379A85D37BB39C39DF9E3&yid=BBCD5003575B2B5F&vid=4AD960B5AD2D111A&iid=DF92D298D3FF1E6E&sid=F50A8B5513721E1C&eid=2AC7DCCBBC26ECF8&journal_id=0412-1961&journal_name=金属学报&referenced_num=0&reference_num=3