中文摘要：

采用XRD、DTA、电导和氧渗透测量等手段研究了Fe掺杂SrC003-δ钙钛矿的结构一性能关系．结果表明，随着Fe含量由0增加到0．2，材料的相组成逐渐发生六方相→brownmillerite主相＋六方相→立方相主相＋六方相→纯立方相的变化．随着温度变化，六方相及brownmillerite相与立方相之间发生转变；与此相应，材料的电导率和氧渗透率发生了显著变化．

英文摘要：

The structure-property relationship of Fe-doped SrCoO3-δ was studied. With increase of Fe content in SrCol-xFexO3-δ from x=0 to x=0.2, the phase composition changed pro- gressively in the order of hexagonal→brownmillerite （main）＋hexagonal→cubic （main）＋ brownmillerite→single cubic phase. Transition between the hexagonal/brownmillerite phase and the cubic phase took place with variation of the operating conditions, and was associated with remarkable changes in the electrical conductivity and oxygen permeation flux.