摘要
文章研究了SDC体积含量分别为65%、55%、45%、35%、20%、0的Ce0.8Sm0.2O2-δ(SDC)/Sm0.5Sr0.5CoO3-δ(SSC)SDC/SSC双相复合陶瓷透氧膜的电学及氧渗透性能。XRD测量结果表明SDC与SSC两相之间没有明显反应。随SDC体积分数的增加,双相复合膜电导率呈降低趋势。氧渗透测量结果显示SDC体积分数为35%时氧渗透速率最大。在810℃,膜厚为1mm,氧分压梯度为0.21atm/0.005atm时氧渗透率达到了1.31×10-7mo·lcm-2·s-1。
The electrical and oxygen permeable properties of SSC-SDC dual-phrase composite membrane with different SDC volume ratios are studied. It is found that the dense composite can be obtained by sintering at elevated temperatures without significant reaetions between the two constituting phases as detected by XRD. As the increasing of SDC, the electrical conductivity exhibits a lowering trend. The SSC/SDC （65/35） composite membrane possesses the highest oxygen permeability, and a flux of 1.31 × 10^-7mol·cm^-2·s^-1 is observed for a 1.0ram thick membrane at 810℃ and under a small oxygen partial pressure gradient of 0.21 atm/0.005atm.
出处
《安徽建筑》
2008年第6期152-153,共2页
Anhui Architecture
关键词
双相复合膜
电导率
氧渗透
dual-phrase composite membrane
electrical conductivity
oxygen permeation
