%0 Journal Article
%T PROPAGATING OF UNLOADED INDENTATION CRACK IN PZT-5H FERROELECTRIC CERAMICS UNDER SINGLE OR COMBINED MECHANICAL AND ELECTRIC LOADINGS<br>Propagating of Unloaded Indentation Crack in PZT—5H Ferroelectric Ceramics Under Single or Combined Mechanical and Electric Loadings
%A ZHAO Xianwu
%A CHU Wuyang
%A SU Yanjing
%A GAO Kewei
%A QIAO Lijie
%A <br>赵显武
%A 褚武扬
%A 宿彦京
%A 高克玮
%A 乔利杰
%J 金属学报
%D 2005
%I 
%X Propagating of unloaded indentation crack in a PZT--5H ferroelectric ceramics with various poling states under single or combined action of mechanical and electric loading has been investigated. The results show that the stress intensity factor induced by the residual stress of an unloaded indentation crack is approximately equal to the fracture toughness. The applied stress or/and electric field, positive and negative, can cause propagating of the indentation crack, and the combined effect of mechanical and electric loadings corresponds to applying an efficient stress.
%K PZT ceramics
%K indentation crack
%K combined mechanical and electric loading<br>PZT铁电陶瓷
%K 压痕裂纹
%K 应力和电场耦合
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=E580FB0F0C7AA714&yid=2DD7160C83D0ACED&vid=2001E0D53B7B80EC&iid=DF92D298D3FF1E6E&sid=C3BC38F6CC09E835&eid=AB720B703F452703&journal_id=0412-1961&journal_name=金属学报&referenced_num=0&reference_num=13