%0 Journal Article
%T INVESTIGATION OF RANGE PARAMETERS IN METAL AND ALLOY<br>金属及合金中射程参数的研究
%A WANG Dening
%A WANG Weiyuan Ion implantation Laboratory
%A <br>王德宁
%A 王渭源
%J 金属学报
%D 1990
%I 
%X The formulas to calculate the electronic stopping power, S_c(E), forheavy ion implanting into metal have been developed by using the Wigner-Sietz ra-dius, equivaleni charge, Fermi velocity and Ziegler's values of hydrogen electronicstopping power. The results calculated are believed to be in agreement with thosemeasured experimentally in previous literature. The formulas to evaluate S_c(E) foralloy, boride containing or CsCl structure have been also derived. However, theseare favourable to only mono-or bi-borides, but not for borides with complex struc-ture such as Cr_5B_3 or W_2B_5. The coefficient of S_c(E) for alloy of CsCl structuredeviating from Bragg's S_c(E) is directly proportional to charge transfer in alloy.The larger the charge transferis, the stronger the metallic bond is. Hence, theS_c(E) created by metallic bond in alloy will be increased; there is a tendency forit to increase with increasing separation of two components in alloy on either sideof Cr group at same periods; and the tendency is larger when the two componentsare in different periods.
%K metal
%K alloy
%K range parameter
%K stopping power<br>金属
%K 合金
%K 射程参数
%K 研究
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=67C9B100EC1915C7477DF8E1401EA530&yid=8D39DA2CB9F38FD0&vid=96C778EE049EE47D&iid=38B194292C032A66&sid=340AC2BF8E7AB4FD&eid=339D79302DF62549&journal_id=0412-1961&journal_name=金属学报&referenced_num=0&reference_num=1