...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>日本セラミックス協会学術論文誌 >Microstructure and Mechanical Properties of Lead Zirconate Titanate (PZT) Nanocomposites with Platinum Particles
【24h】

Microstructure and Mechanical Properties of Lead Zirconate Titanate (PZT) Nanocomposites with Platinum Particles

机译：钛酸锆钛酸铅（PZT）纳米复合材料的微观结构和力学性能

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

Fine platinum (Pt) particles-dispersed lead zirconate titanate, Pb(Zr, Ti)O_3 (PZt) nanocomposites were prepared by an electroless plating method which enabled to obtain a PZT nanocomposites homogeneously dispersed with fine platinum particles. Platinum particles with the size up to a few tens nanometer were precipitated on the surface of the PZT matrix. According to transmission electron microscope (TEM) observations, both the size and dispersion of the platinum particles may depend on the pH value of the aqueous platinum solution during electroless plating. After sintering, the platinum particles were found to be homogeneously dispersed in the PZT matrix. Fracture strength and toughness of the PZT nanocomposites were improved with retaining their electrical properties. Scanning electron microscope (SEM) observations revealed that the fracture mode of the PZT/platinum nanocomposites was transgranular, in contrast with the intergranular fracture mode of the monolithic PZT. this result suggests that the grain boundary structure of the PZT nanocomposites may be modified by the platinum, leading to improved mechanical properties.
机译：通过化学镀法制备了分散有细铂（Pt）颗粒的锆酸铅钛酸盐，Pb（Zr，Ti）O_3（PZt）纳米复合材料，该方法能够获得均匀分散有细铂颗粒的PZT纳米复合材料。尺寸高达几十纳米的铂颗粒沉淀在PZT基质表面上。根据透射电子显微镜（TEM）的观察，铂颗粒的大小和分散性都可能取决于化学镀过程中铂水溶液的pH值。烧结后，发现铂颗粒均匀分散在PZT基体中。 PZT纳米复合材料的断裂强度和韧性得以改善，同时保留了其电性能。扫描电子显微镜（SEM）观察显示，PZT /铂纳米复合材料的断裂模式是跨晶的，与整体PZT的晶间断裂模式相反。该结果表明PZT纳米复合材料的晶界结构可以被铂修饰，从而改善机械性能。

著录项

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