采用固相反应法合成了钙钛矿型Ba0.5Sr0.5Co0.8Fe0.2-xCrxO3-δ(x=0.00,0.10)透氧膜粉体.利用XRD和SEM研究了Ba0.5Sr0.5Co0.8Fe0.2-xCrxO3-δ(z=0.00,0.10)的晶体结构和烧结性能,考察了在700~850℃范围内Ba0.5Sr0.5Co0.8Fe0.2-xCrxO3-δ(z=0.00,0.10)膜片的氧渗透性能.结果表明,它们均显示出优良的透氧性能,850℃时的透氧量分剐为1.05m.L/(min·cm2)、0.85mL/(min·cm2).透氧稳定性的研究表明,Cr掺杂Ba0.5Sr0.5Co0.8Fe0.1-xCr0.1O3-δ在800℃时显示出较高的稳定性,证实用Cr离子部分取代Ba0.5Sr0.5Co0.8Fe0.2O3-δ的Fe离子能明显提高钙钛矿的结构稳定性.
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