4.7 Article

Tensile ductility and necking in consolidated amorphous alumina

期刊

JOURNAL OF THE AMERICAN CERAMIC SOCIETY
卷 105, 期 2, 页码 958-965

出版社

WILEY
DOI: 10.1111/jace.18127

关键词

amorphous alumina; consolidation; necking; tensile ductility; work hardening

资金

  1. National Science Foundation [DMR-1508410, DMR-1936368, DMR-2015557]

向作者/读者索取更多资源

Through classical molecular dynamics simulations, it was found that consolidated amorphous alumina can exhibit ductile-like deformation and fracture characteristics if processed properly, significantly expanding the applications of oxide glasses into new areas.
Oxide glass, one of the most transformative materials in the modern world, breaks easily under load due to its brittleness. Using classical molecular dynamics simulations, we prepared amorphous alumina by consolidating glass nanoparticles at room temperature. We showed that consolidated amorphous alumina exhibits work hardening ability, hence deforms homogeneously and fractures via necking under tension, while amorphous alumina obtained from the traditional melt-quench process fractures catastrophically due to severe shear banding. This finding suggests that if processed properly, amorphous oxides could deform and fracture like ductile metals, which will significantly expand the applications of oxide glasses into new areas where load bearing or mechanical reliability is necessary.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据