• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of industrial and engineering chemistry >Fracture toughness and surface morphology of Al2O3/Pt composites
【24h】

Fracture toughness and surface morphology of Al2O3/Pt composites

机译：Al2O3 / Pt复合材料的断裂韧性和表面形态

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

In the present study, Al2O3-based composites with dispersed Pt particles were prepared by using a reduction-precipitation method. Particle distribution, fracture toughness, and morphology of the prepared Al2O3/Pt composites were studied. Crystal structure of the composites was evaluated by analyzing Pt characteristic peaks in the X-ray diffraction spectra. Transmission electron microscopy images indicated that the Pt particles were uniformly dispersed in the Al2O3 powder. The fracture toughness of the Al2O3 matrix was improved by the addition of Pt particles, since these particles effectively resisted crack propagation in the Al2O3/Pt composites. Scanning electron microscopy images indicated that the fracture of the composites followed an intergranular mechanism, typical of ceramic materials, at low Pt content, whereas a transgranular mechanism occurred at high Pt content. (C) 2014 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
机译：在本研究中，采用还原沉淀法制备了具有分散的Pt颗粒的Al2O3基复合材料。研究了制备的Al2O3 / Pt复合材料的颗粒分布，断裂韧性和形貌。通过分析X射线衍射光谱中的Pt特征峰来评估复合材料的晶体结构。透射电子显微镜图像表明，Pt颗粒均匀地分散在Al2O3粉末中。通过添加Pt颗粒可以提高Al2O3基体的断裂韧性，因为这些颗粒有效地抵抗了Al2O3 / Pt复合材料中的裂纹扩展。扫描电子显微镜图像表明，在低Pt含量下，复合材料的断裂遵循陶瓷材料特有的晶间机制，而在高Pt含量下发生了跨晶机制。 （C）2014韩国工业和工程化学学会。由Elsevier B.V.发布。保留所有权利。

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