%0 Journal Article
%T EFFECT OF La2O3 ON LASER SINTERING OF WC-CoP/Cu METAL MATRIX COMPOSITES<br>添加La2O3对激光烧结(WC-Co)p/Cu金属基复合材料组织和成形性能的影响
%A Dongdong Gu
%A Yifu Shen
%A <br>顾冬冬
%A 沈以赴
%J 金属学报
%D 2007
%I 
%X The effect of rare earth oxide (La2O3) contents on direct laser sintering of WC-10Co particulate reinforced Cu matrix composites was investigated. It shows that using an optimal La2O3 content of 1.0% can refine the laser sintered structure, homogenize the dispersion of reinforcing particulates and improve the particulate/matrix bonding coherence, leading to a high densification of 96.3% theoretical density and a high microhardness of HV0.1403.1. However, an excessive addition of La2O3 above 1.5% results in a decrease in the laser sintering ability. The metallurgical mechanisms of rare earth element in laser sintering of particulate reinforced metal matrix composites were discussed.
%K direct metal laser sintering
%K metal matrix composite
%K WC-Co
%K La2O3<br>直接金属激光烧结
%K 金属基复合材料
%K WC-Co
%K La2O3
%K 添加量
%K 激光烧结成形
%K 金属基复合材料
%K 基复合材料组织
%K 成形性能
%K 影响
%K LASER
%K PROPERTY
%K FORMING
%K STRUCTURE
%K ADDITION
%K EFFECTS
%K 作用机理
%K 原子
%K 稀土氧化物
%K 显微硬度
%K 理论密度
%K 致密度
%K 界面结合性能
%K 基体
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=874A1CE7C8235F7F47BD392134945B4B&yid=A732AF04DDA03BB3&vid=BE33CC7147FEFCA4&iid=9CF7A0430CBB2DFD&sid=20154CF366EC08B1&eid=816AB2919A4FEDD7&journal_id=0412-1961&journal_name=金属学报&referenced_num=0&reference_num=36