%0 Journal Article
%T Influence of Annealing on the Grain Growth and Thermal Diffusivity of Nanostructured YSZ Thermal Barrier Coating
%A Na WANG
%A Chungen ZHOU
%A Shengkai GONG
%A Huibin XU
%A <br>Na
%A WANG
%A Chungen
%A ZHOU
%A Shengkai
%A GONG
%A Huibin
%A XU
%J 材料科学技术学报
%D 2006
%I 
%X The nanostructured zirconia coatings were deposited by atmospherically plasma spraying. Scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction were used to investigate the microstructure of the zirconia coatings. Thermal diffusivity values at normal temperatures have been evaluated by laser flash technique. Effect of annealing on the microstructure evolution of the zirconia coating has been performed. The grains and thermal diffusivity are increased with increasing annealing time and temperature.The grain growth is according to the GRIGC (the grain rotation induced grain coalescence) mechanism. The increase in thermal diffusivity is attributed to the grain growth and the decrease in porosity of nanostructured zirconia coatings.
%K Grain size
%K Thermal diffusivity
%K Thermal barrier coating
%K Plasma spraying<br>YSZ隔热涂层
%K 纳米结构
%K 结晶粒度
%K 热扩散率
%K 退火
%K 晶粒生长
%K 氧化锆
%K 钇
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=324DC3CAB22330DB19158AE0A9B7BFA5&aid=6E9304BD9BEDA8EFE5596DF200C5357F&yid=37904DC365DD7266&vid=BC12EA701C895178&iid=B31275AF3241DB2D&sid=8225A9F184D4F1CA&eid=97747634025A5F36&journal_id=1005-0302&journal_name=材料科学技术学报&referenced_num=0&reference_num=20