%0 Journal Article
%T PREPARATION AND SOLIDIFICATION CHARACTERISTIC OF IN SITU DIRECTIONALLY SOLIDIFIED EUTECTIC Al_(11)La_3 / Al COMPOSITE<br>定向凝固自生共晶材料Al11La3／Al的制备及凝固特征
%A DONG Hongbiao
%A JI Yongyi
%A ZHU Jun
%A LU Shuzu
%A ZHONG Xueyou
%A LI Jianguo University of Science
%A Technology Beijing Northwestern Polytechnical University
%A Xi''an lecturer
%A <br>董洪标
%A 计永毅
%A 朱峻
%A 吕述祖
%A 钟雪友
%A 李建国
%J 金属学报
%D 1993
%I 
%X 利用定向凝固装置,在固-液界面前沿温度梯度很高的条件下, 在生长速度R=6.0-20.0μm/s的范围内制得了定向规则排列的自生复合Al_(11)La_3/Al共晶材料、并测得在此凝固条件下处于极值状况生长的共晶体?/R=1.42×10~(-8)cm~3/s利用TEM对该共晶体的选区衍射表明:共晶两相的择优取向为100]Al∥331Al_(11)La_3,惯态平面为:(002)Al∥(116)Al_(11)La_3Al_(11)La_3,相生长前沿的(103)晶面孪晶生长,导致Al_(11)La_3相分枝,从而调整共晶片层间距λ
%K eutectic solidification
%K directional solidification
%K Al+(La
%K Al)<br>共晶凝固
%K 定向凝固
%K 自生复合材料
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=9D6A0706ECC107335C3B41F274F74881&yid=D418FDC97F7C2EBA&vid=771469D9D58C34FF&iid=38B194292C032A66&sid=B31275AF3241DB2D&eid=F3090AE9B60B7ED1&journal_id=0412-1961&journal_name=金属学报&referenced_num=1&reference_num=3