%0 Journal Article
%T MECHANICAL PROPERTIES OF TiaSiC2 AT HIGH TEMPERATURE
%A YWBao
%A YCZhou
%A <br>Y.W.Bao
%A Y.C.Zhou
%J 金属学报(英文版)
%D 2004
%I 
%X Creep and stress relaxation behavior, the elastic modulus and fracture toughness of machinable Ti3SiC2 at various temperatures from 20 to 1250℃ were investigated by means of three-point bending tests. The experiments were performed respectively at: (i) fixed stress and changed temperatures, and (ii) fixed temperature and changed stresses. A creep resistance parameter that represents the probability of creep deformation in a given condition was defined as a function of both applied stress and the threshold stress, varying in a range from 0 to 1. Elastic modulus at high temperatures was measured through comparing relative slopes of loading curves in cyclic loading curve. The fracture toughness measured by SENB method showed a stable value in the range of 25-1000℃, but over 1000℃, it declined abruptly from ～6.7MPa.m^1/2 to～2.0MPa.m^1/2 at 1200℃.
%K high-temperature
%K Ti3SiC2
%K creep<br>Ti3SiC2
%K 蠕变
%K 裂纹
%K 力学性能
%K 应力松弛
%K 金属陶瓷
%K 断裂强度
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=C19B08D052F5FD8445F4BB80A1A5D7BF&aid=8F6D66ABB2D087CF261785C29DCB52F1&yid=D0E58B75BFD8E51C&vid=BCA2697F357F2001&iid=E158A972A605785F&sid=BC88D6B0750E09D1&eid=47F7649551A37CFC&journal_id=1006-7191&journal_name=金属学报(英文版)&referenced_num=0&reference_num=8