铌掺杂对BaCo0.7Fe0.3-xNbxO3-δ透氧能力及稳定性的影响

功能材料, 2010, 41(7): 1240-1246.

铌掺杂对BaCo0.7Fe0.3-xNbxO3-δ透氧能力及稳定性的影响

周宇鼎 ^1, , 丁伟中 ^2, , 沈培俊 ^3, , 黄少卿 ^4, , 刘勇 ^5,

1.上海大学,上海市现代冶金与材料重点实验室,上海,200072

2.上海大学,上海市现代冶金与材料重点实验室,上海,200072

3.上海大学,上海市现代冶金与材料重点实验室,上海,200072

4.上海大学,上海市现代冶金与材料重点实验室,上海,200072

5.上海大学,上海市现代冶金与材料重点实验室,上海,200072

基金项目: 上海市科委重点科研资助项目(06DZ12212) 先进钢铁材料技术国家工程技术研究中心资助项目(中050209) 国家高技术研究发展计划资助项目(863计划)(2006BA103A05)

关键词：透氧膜 , 相结构稳定性 , 化学稳定性 , 晶粒细化

Effects of different concentration of Nb on oxygen-permeation ability and stability of BaCo0.7Fe0.3-xNbxO3-δ membrane

采用固相合成法制备了BaCo0.7Fe0.3-xNbxO3-δ(x=0.08～0.14)材料.铌掺杂量的改变能显著影响材料的相结构稳定性、化学稳定性、晶粒组织及透氧性能.随着铌掺杂量的提高,材料的氧空位形成能力增强、晶粒组织得到细化,从而提高了材料的透氧能力.不同烧结时间下BaCo0.7Fe0.3-xNbxO3-δ透氧膜片透氧能力的测试结果表明晶粒组织的细化能够提高BaCo0.7Fe0.3-xNbxO3-δ材料的透氧能力.

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材料期刊网

铌掺杂对BaCo0.7Fe0.3-xNbxO3-δ透氧能力及稳定性的影响

Effects of different concentration of Nb on oxygen-permeation ability and stability of BaCo0.7Fe0.3-xNbxO3-δ membrane

参考文献