Segregation-induced ordered superstructures at general grain boundaries in a nickel-bismuth alloy-Reference-Cited by-同舟云学术

Segregation-induced ordered superstructures at general grain boundaries in a nickel-bismuth alloy

Published:2017-10-06 Issue:6359 Volume:358 Page:97-101
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Yu Zhiyang¹^ORCID,Cantwell Patrick R.²^ORCID,Gao Qin³,Yin Denise¹^ORCID,Zhang Yuanyao⁴^ORCID,Zhou Naixie⁴^ORCID,Rohrer Gregory S.⁵^ORCID,Widom Michael³^ORCID,Luo Jian⁴^ORCID,Harmer Martin P.¹^ORCID

Affiliation:

1. Department of Materials Science and Engineering, Lehigh University, Bethlehem, PA 18015, USA.

2. Department of Mechanical Engineering, Rose-Hulman Institute of Technology, Terre Haute, IN 47803, USA.

3. Department of Physics, Carnegie Mellon University, Pittsburgh, PA 15213, USA.

4. Department of NanoEngineering, Program of Materials Science and Engineering, University of California, San Diego, La Jolla, CA 92093, USA.

5. Department of Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA.

Abstract

Giving grain boundaries more structure The properties of metals change depending on the composition and structure of grain boundaries in polycrystalline materials. Yu et al. discovered a surprising grain boundary superstructure in a nickel-bismuth alloy. Previously, the structure was only known to exist in a specific type of uncommon grain boundary, and experiments had focused on bicrystals. Unexpectedly, this alloy has grain boundary superstructures across a wide range of boundaries in polycrystalline samples. This likely also occurs in other alloys, which opens an avenue for grain boundary engineering to tune the physical properties of metals and ceramics. Science , this issue p. 97

Funder

Office of Naval Research

U.S. Department of Energy

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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