%0 Journal Article
%T THERMAL SHOCK BEHAVIOR OF ZrO_2/Ni GRADED THERMAL BARRIER COATINGS<br>ZrO2／Ni阶梯热障涂层的热冲击行为
%A HU Wangyu
%A GUAN Hengrong
%A SUN Xiaofeng
%A LI Shizhuo
%A FUKUMOTO Masahiro
%A OKANE IsaoCorrespondent: SUN Xiaofeng
%A associate profssor Tel: -
%A Fax:
%A <br>胡望宇
%A 管恒荣
%A 孙晓峰
%A 李诗卓
%A 福本昌宏
%A 岡根功
%J 金属学报
%D 1998
%I 
%X The failure behaviors of ZrO2/Ni graded thermal barrier coatings under the conditions of thermal shock with fiame jet and water quenching have been studied. The one-dimensi-onal analytic model of temperature and stress field under these conditions for the coatings hasbeen established. The thermal shock resistance of coatings increases with the increase of layersunder the condition of fiame jet and decreases with the increase of layers under the condition ofwater quenching, which can be reasonably explained with the present model. The thermal shockresistance depends on the thermal shock conditions, and is determined by the magnitude anddirection of the surface heat exchange coefficiellt. Therefore, it is necessary to choose suitablethermal shock condition to evaluate the ability to resist shock of coatings. For thermal barriercoatings which are applied to the turbine blade of aeroengine or under the matchable thermalshock conditions, gradient structure mny sigIilficantly improve their ability to resist thermal shock.
%K ZrO_2/Ni
%K graded thermal barrier coating
%K thermal shock
%K temperature field
%K stress field<br>ZrO2／Ni
%K 阶梯热障涂层
%K 热冲击
%K 温度场
%K 应力场
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=ECDC9ECCF881A3E356EBCBF1F7AAD94C&yid=8CAA3A429E3EA654&vid=339D79302DF62549&iid=F3090AE9B60B7ED1&sid=E26AA41AE15D3061&eid=5348E91DA94080DE&journal_id=0412-1961&journal_name=金属学报&referenced_num=8&reference_num=8