Shear band formation during nanoindentation of EuB6 rare-earth hexaboride

Rajamallu Karre; Yidi Shen; Shuangxi Song; Yixuan Hu; Simanta Lahkar; Xiaodong Wang; Qi An; Kolan Madhav Reddy

doi:10.1038/s43246-022-00246-2

Communications Materials (Apr 2022)

Shear band formation during nanoindentation of EuB6 rare-earth hexaboride

Rajamallu Karre,
Yidi Shen,
Shuangxi Song,
Yixuan Hu,
Simanta Lahkar,
Xiaodong Wang,
Qi An,
Kolan Madhav Reddy

Affiliations

Rajamallu Karre: State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University
Yidi Shen: Department of Chemical and Materials Engineering, University of Nevada-Reno
Shuangxi Song: State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University
Yixuan Hu: State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University
Simanta Lahkar: State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University
Xiaodong Wang: State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University
Qi An: Department of Chemical and Materials Engineering, University of Nevada-Reno
Kolan Madhav Reddy: State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University

DOI: https://doi.org/10.1038/s43246-022-00246-2
Journal volume & issue: Vol. 3, no. 1
pp. 1 – 9

Abstract

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Rare-earth hexaborides are of interest for their pressure-induced phase transformations, but further understanding is needed regarding their failure mechanisms. Here, nanoindentation of EuB6 causes dislocation-mediated shear band formation, driven by the breaking of boron-boron bonds.

Published in Communications Materials

ISSN: 2662-4443 (Online)
Publisher: Nature Portfolio
Country of publisher: United States
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.nature.com/commsmat/

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