• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Synthesis, structural characterization, electrical properties and chemical stability of a (ZrO2)(0.97)(Y2O3)(0.03-x)(MgO)(2x) solid solution
【24h】

Synthesis, structural characterization, electrical properties and chemical stability of a (ZrO2)(0.97)(Y2O3)(0.03-x)(MgO)(2x) solid solution

机译：（ZrO2）（0.97）（Y2O3）（0.03-X）（MgO）固溶体的合成，结构表征，电性能和化学稳定性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper is concerned with ternary solid state ZrO2-Y2O3-MgO where the zirconia tetragonal phase is stabilized by incorporation of yttrium and/or magnesium in the ZrO2 lattice. This subject is especially important due to the broad application of yttria stabilized zirconia (YSZ) in (among others) electroceramic systems in particular as potential component of the composite anode material for SOFC technology. A series of samples with a starting composition corresponding to 3 mol% yttria-stabilized zirconia (3YSZ) and increasing substitution of yttrium by magnesium were synthesized. The resulting samples were examined in terms of structural properties, phase composition, electrical properties and chemical stability. The obtained results show close correlation between the amount of incorporated magnesium and structural parameters of the tetragonal phase as well as electrical properties of all samples. The substitution of yttrium with magnesium in the 3YSZ system leads to a significant decrease of conductivity and the appearance of a monoclinic phase in the system for x > 0.015 (3 mol% of Mg2+). Moreover, it was confirmed that exposing the ZrO2-Y2O3-MgO ternary system to a CO2 and H2O atmosphere can significantly decrease its chemical stability. From the point of view of both, basic and application research, these studies make an important contribution to the current knowledge of the properties of the ZrO2-Y2O3-MgO ternary solid solution system.
机译：本文涉及三元固态ZrO2-y2O3-MgO，其中通过在ZrO2晶格中掺入钇和/或镁来稳定氧化锆四方相。由于氧化钇稳定的氧化锆（YSZ）在电烧制系统中的广泛应用，该主题特别重要，特别是作为SOFC技术的复合阳极材料的潜在成分。合成了一系列具有相当于3摩尔％的yTTRIA稳定的氧化锆（3YSIZ）的起始组合物的样品并通过镁的增加的钇取代。在结构性质，相组合物，电性能和化学稳定性方面检测所得样品。所得结果显示了四边形相的掺入镁和结构参数的量与所有样品的电性能之间的紧密相关性。在3YSZ系统中替代钇与镁导致电导率的显着降低和系统中单斜相的外观，用于x> 0.015（3mol％Mg2 +）。此外，证实将ZrO2-y2O3-MgO三元体系暴露于CO 2和H2O气氛中，可以显着降低其化学稳定性。从基础和应用研究的角度来看，这些研究对目前对ZrO2-y2O3-MgO三元固体解决方案系统性质的了解作出了重要贡献。

著录项

  • 来源
    《RSC Advances》 |2016年第88期|共8页
  • 作者

    Drozdz Ewa;

  • 作者单位

    AGH Univ Sci &

    Technol Fac Mat Sci &

    Ceram Al A Mickiewicza 30 PL-30059 Krakow Poland;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号