Shear amorphization of boron suboxide

K. Madhav Reddy, Akihiko Hirata, P. Liu, T. Fujita, T. Goto, M. W. Chen

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

We report for the first time the shear-induced local amorphization of boron suboxide subjected to nanoindentation. The amorphous bands have a width of ∼1-3 nm and a length of 200-300 nm along the (01̄11) crystal plane. We show direct experimental evidence that the amorphous shear bands of boron suboxide are driven from the coalescence of dislocation loops under high shear stresses. These observations provide insights into the microscopic deformation and failure of high-strength and lightweight ceramics.

Original languageEnglish
Pages (from-to)9-12
Number of pages4
JournalScripta Materialia
Volume76
DOIs
Publication statusPublished - 2014 Apr 1
Externally publishedYes

Fingerprint

Boron
Amorphization
boron
shear
Shear bands
Nanoindentation
nanoindentation
high strength
Coalescence
coalescing
shear stress
Shear stress
ceramics
Crystals
crystals

Keywords

  • Amorphization
  • Boron suboxide ceramic
  • Nanoindentation
  • Transmission electron microscopy

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Madhav Reddy, K., Hirata, A., Liu, P., Fujita, T., Goto, T., & Chen, M. W. (2014). Shear amorphization of boron suboxide. Scripta Materialia, 76, 9-12. https://doi.org/10.1016/j.scriptamat.2013.12.001

Shear amorphization of boron suboxide. / Madhav Reddy, K.; Hirata, Akihiko; Liu, P.; Fujita, T.; Goto, T.; Chen, M. W.

In: Scripta Materialia, Vol. 76, 01.04.2014, p. 9-12.

Research output: Contribution to journalArticle

Madhav Reddy, K, Hirata, A, Liu, P, Fujita, T, Goto, T & Chen, MW 2014, 'Shear amorphization of boron suboxide', Scripta Materialia, vol. 76, pp. 9-12. https://doi.org/10.1016/j.scriptamat.2013.12.001
Madhav Reddy, K. ; Hirata, Akihiko ; Liu, P. ; Fujita, T. ; Goto, T. ; Chen, M. W. / Shear amorphization of boron suboxide. In: Scripta Materialia. 2014 ; Vol. 76. pp. 9-12.
@article{38c68bf0e4bc4d9ab201ab8007fce4ad,
title = "Shear amorphization of boron suboxide",
abstract = "We report for the first time the shear-induced local amorphization of boron suboxide subjected to nanoindentation. The amorphous bands have a width of ∼1-3 nm and a length of 200-300 nm along the (01̄11) crystal plane. We show direct experimental evidence that the amorphous shear bands of boron suboxide are driven from the coalescence of dislocation loops under high shear stresses. These observations provide insights into the microscopic deformation and failure of high-strength and lightweight ceramics.",
keywords = "Amorphization, Boron suboxide ceramic, Nanoindentation, Transmission electron microscopy",
author = "{Madhav Reddy}, K. and Akihiko Hirata and P. Liu and T. Fujita and T. Goto and Chen, {M. W.}",
year = "2014",
month = "4",
day = "1",
doi = "10.1016/j.scriptamat.2013.12.001",
language = "English",
volume = "76",
pages = "9--12",
journal = "Scripta Materialia",
issn = "1359-6462",
publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Shear amorphization of boron suboxide

AU - Madhav Reddy, K.

AU - Hirata, Akihiko

AU - Liu, P.

AU - Fujita, T.

AU - Goto, T.

AU - Chen, M. W.

PY - 2014/4/1

Y1 - 2014/4/1

N2 - We report for the first time the shear-induced local amorphization of boron suboxide subjected to nanoindentation. The amorphous bands have a width of ∼1-3 nm and a length of 200-300 nm along the (01̄11) crystal plane. We show direct experimental evidence that the amorphous shear bands of boron suboxide are driven from the coalescence of dislocation loops under high shear stresses. These observations provide insights into the microscopic deformation and failure of high-strength and lightweight ceramics.

AB - We report for the first time the shear-induced local amorphization of boron suboxide subjected to nanoindentation. The amorphous bands have a width of ∼1-3 nm and a length of 200-300 nm along the (01̄11) crystal plane. We show direct experimental evidence that the amorphous shear bands of boron suboxide are driven from the coalescence of dislocation loops under high shear stresses. These observations provide insights into the microscopic deformation and failure of high-strength and lightweight ceramics.

KW - Amorphization

KW - Boron suboxide ceramic

KW - Nanoindentation

KW - Transmission electron microscopy

UR - http://www.scopus.com/inward/record.url?scp=84893812386&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84893812386&partnerID=8YFLogxK

U2 - 10.1016/j.scriptamat.2013.12.001

DO - 10.1016/j.scriptamat.2013.12.001

M3 - Article

VL - 76

SP - 9

EP - 12

JO - Scripta Materialia

JF - Scripta Materialia

SN - 1359-6462

ER -