%0 Journal Article
%T Analysis of Equivalent Oxygen Diffusivity of Particle Dispersed Composites
%A Mingwei LI
%A Jingchuan ZHU
%A Zhongda YIN
%A Gang ZENG
%A <br>MingweiLI
%A JingchuanZHU
%J 材料科学技术学报
%D 2002
%I 
%X This paper presents a new method to determine the equivalent oxygen diffusivities of particle dispersed composites. This method can be used to design FGM thermal barrier systems with the function of oxygen barrier. A qualitative explanation of the oxidation of nickel with the increment of zirconia contents in the composite samples can be accepted by this method. The values of equivalent oxygen diffusivities obtained with this method are in excellent agreement with those from the EMT method for the composites with ZrO2 particle dispersed phase when the volume fractions of dispersed phase are lower than 25%.
%K Equivalent oxygen diffusivity
%K Particle dispersed composite
%K FGM<br>功能梯度材料
%K 二氧化锆
%K 镍基合金
%K FGM
%K 氧气
%K 扩散系数
%K 颗粒扩散
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=324DC3CAB22330DB19158AE0A9B7BFA5&aid=34FEF98F5BF1CAB781434684FC7DBB0A&yid=C3ACC247184A22C1&vid=13553B2D12F347E8&iid=94C357A881DFC066&sid=1FF3CD54EFC256A1&eid=6B3068A7C27BD349&journal_id=1005-0302&journal_name=材料科学技术学报&referenced_num=0&reference_num=0