• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Processing and properties of advanced ceramics and composites V >INTERNAL STRAIN AND DIELECTRIC LOSSES BY COMPOSITIONAL ORDERING ON THE MICROWAVE DIELECTRICS PSEUDO-TUNGSTENBRONZE Ba_(6-3x)R_(8+2x)Ti_(18)O_(54) (R = RARE EARTH) SOLID SOLUTIONS
【24h】

INTERNAL STRAIN AND DIELECTRIC LOSSES BY COMPOSITIONAL ORDERING ON THE MICROWAVE DIELECTRICS PSEUDO-TUNGSTENBRONZE Ba_(6-3x)R_(8+2x)Ti_(18)O_(54) (R = RARE EARTH) SOLID SOLUTIONS

机译：微波介电质-钨硬质合金Ba_（6-3x）R_（8 + 2x）Ti_（18）O_（54）上的成分阶跃导致的内部应变和介电损耗

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

Microwave dielectrics pseudo-tungstenbronze solid solutions form compositional ordering at x = 2/3 on the Ba_(6-3x)R_(8+2x)Ti_(18)O_(54) (R = Sm, Nd, Pr, and La) formula. The Qf value of the x = 2/3 composition shows the highest value. The internal strain of the composition is the lowest value based on the full-width at half-maximum (FWHM) of X-ray power diffraction (XRPD) patterns. In the region x < 2/3, a part of Ba ions occupy statistically perovskite blocks, so, d-spacing of the unit cell shows fluctuation. As the unit cells without Ba ions in the perovskite blocks are causing tensile stress, dielectric constant and dielectric losses increase by means of the rattling of cations in the octahedral sites.
机译：微波电介质伪钨青铜固溶体在Ba_（6-3x）R_（8 + 2x）Ti_（18）O_（54）上以x = 2/3的形式形成成分有序（R = Sm，Nd，Pr和La）式。 x = 2/3组成的Qf值显示出最大值。基于X射线功率衍射（XRPD）图案的半峰全宽（FWHM），组合物的内部应变为最低值。在x <2/3的区域中，Ba离子的一部分在统计上占据钙钛矿块，因此，晶胞的d间距显示出波动。由于钙钛矿块中不含Ba离子的晶胞引起张应力，介电常数和介电损耗会通过阳离子在八面体位点的嘎嘎声而增加。

著录项

相似文献

  • 外文文献
  • 中文文献
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