...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Materials Research >An in situ study on Kr ion-irradiated crystalline Cu/ amorphous-CuNb nanolaminates
【24h】

An in situ study on Kr ion-irradiated crystalline Cu/ amorphous-CuNb nanolaminates

机译：KR离子辐照结晶Cu /无定形CUNB纳米胺的原位研究

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

Nanocrystalline and nanolaminated materials show enhanced radiation tolerance compared with their coarse-grained counterparts, since grain boundaries and layer interfaces act as effective defect sinks. Although the effects of layer interface and layer thickness on radiation tolerance of crystalline nanolaminates have been systematically studied, radiation response of crystalline/ amorphous nanolaminates is rarely investigated. In this study, we show that irradiation can lead to formation of nanocrystals and nanotwins in amorphous CuNb layers in Cu/amorphous-CuNb nanolaminates. Substantial element segregation is observed in amorphous CuNb layers after irradiation. In Cu layers, both stationary and migrating grain boundaries effectively interact with defects. Furthermore, there is a clear size effect on irradiation-induced crystallization and grain coarsening. In situ studies also show that crystalline/ amorphous interfaces can effectively absorb defects without drastic microstructural change, and defect absorption by grain boundary and crystalline/ amorphous interface is compared and discussed. Our results show that tailoring layer thickness can enhance radiation tolerance of crystalline/ amorphous nanolaminates and can provide insights for constructing crystalline/ amorphous nanolaminates under radiation environment.
机译：纳米晶体和纳米依赖性材料显示出与其粗粒粒子相比的增强的辐射耐受性，因为晶界和层界面充当有效的缺陷沉降。尽管已经系统地研究了层界面和层厚度对结晶纳米胺酰胺的辐射耐受性的影响，但很少研究结晶/无定形纳米胺的辐射响应。在这项研究中，我们表明，辐射可以导致在Cu /无晶 - CUNB纳米胺中的无定形CUNB层中形成纳米晶体和纳米丝。在照射后在无定形CUNB层中观察到大量元素偏析。在Cu层中，静止和迁移的晶粒边界都有效地与缺陷相互作用。此外，对辐照诱导的结晶和晶粒粗化有明显的尺寸效果。原位研究还表明，结晶/无定形界面可以有效地吸收缺陷而没有激烈的微观结构变化，并比较晶界和结晶/非晶界面的缺陷吸收和讨论。我们的结果表明，剪裁层厚度可以增强结晶/无定形纳米胺的辐射耐受性，并可以提供用于在辐射环境下构建晶体/无定形纳米胺的见解。

著录项

  • 来源
    《Journal of Materials Research》 |2019年第13期|2218-2228|共11页
  • 作者

    Fan Zhe; Fan Cuncai; Li Jin; Shang Zhongxia; Xue Sichuang; Kirk Marquis A.; Li Meimei; Wang Haiyan; Zhang Xinghang;

  • 作者单位

    Purdue Univ Sch Mat Engn W Lafayette IN 47907 USA;

    Purdue Univ Sch Mat Engn W Lafayette IN 47907 USA;

    Purdue Univ Sch Mat Engn W Lafayette IN 47907 USA;

    Purdue Univ Sch Mat Engn W Lafayette IN 47907 USA;

    Purdue Univ Sch Mat Engn W Lafayette IN 47907 USA;

    Argonne Natl Lab Nucl Engn Div Argonne IL 60439 USA;

    Argonne Natl Lab Nucl Engn Div Argonne IL 60439 USA;

    Purdue Univ Sch Mat Engn W Lafayette IN 47907 USA|Purdue Univ Sch Elect & Comp Engn W Lafayette IN 47907 USA;

    Purdue Univ Sch Mat Engn W Lafayette IN 47907 USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    radiation effects; transmission electron microscope (TEM); defects;

    机译：辐射效应;透射电子显微镜（TEM）;缺陷;

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