%0 Journal Article
%T THE EFFECT OF SUBZERO TREATMENT ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF Y_2O_3-ZrO_2 CERAMIC
%A LI Ying
%A WANG Xiaotian
%A JIN Zhihao Xi'an Jiaotong University
%A Xi'an
%A China SHl Guoshun Beijing Measuring
%A Analysing Center
%A <br>LI Ying
%A WANG Xiaotian
%A JIN Zhihao Xi''''an Jiaotong University
%A Xi''''an
%A China SHl Guoshun Beijing Measuring and Analysing Center.Beijing
%A China
%J 金属学报(英文版)
%D 1992
%I 
%X The effect of subzero treatment on the microstructure and mechanical properites of Y_2O_3- ZrO_2 ceramic have been investigated by TEM,X-ray diffraction and test of mechanical properties.It was shown that the microstructre of 3Y-PSZ after subzero treatment by liquid nitrogen exhibits very long and parallel laths of m-phase and some microcracks around the larger and finer lath of m-phase may be discovered.Suitable subzero treatment can improve the strength and toughness of Y-PSZ efficiently because of decreasing the stability of t-phase and incresing the amount of t-m transformation when exerting a stress.However,when the time of subzero treatment exceeds,the over aging effect may arise.which can decrease the strength and toughness of the material.
%K Y_2O_3-ZrO_2 partially stabilized zirconia(PSZ)
%K transformation strengthenign and toughening
%K subzero treatment<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=C19B08D052F5FD8445F4BB80A1A5D7BF&aid=9D6A810872B5F8F942A3B06B94A86D59&yid=F53A2717BDB04D52&vid=94C357A881DFC066&iid=59906B3B2830C2C5&sid=AF0641F74554D706&eid=F3A3627BFEF439C1&journal_id=1006-7191&journal_name=金属学报(英文版)&referenced_num=0&reference_num=11