Shear amorphization of boron suboxide

K. Madhav Reddy; A. Hirata; P. Liu; T. Fujita; T. Goto; M. W. Chen

doi:10.1016/j.scriptamat.2013.12.001

Shear amorphization of boron suboxide

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

Research output: Contribution to journal › Article › peer-review

39 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 language	English
Pages (from-to)	9-12
Number of pages	4
Journal	Scripta Materialia
Volume	76
DOIs	https://doi.org/10.1016/j.scriptamat.2013.12.001
Publication status	Published - 2014 Apr

Keywords

Amorphization
Boron suboxide ceramic
Nanoindentation
Transmission electron microscopy

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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10.1016/j.scriptamat.2013.12.001

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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 (0{\=1}11) 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 A. Hirata and P. Liu and T. Fujita and T. Goto and Chen, {M. W.}",

note = "Funding Information: This work is sponsored by JST-CREST “Phase Interface Science for Highly Efficient Energy Utilization” and “World Premier International (WPI) Center Initiative for Atoms, Molecules and Materials,” MEXT, Japan .",

year = "2014",

month = apr,

doi = "10.1016/j.scriptamat.2013.12.001",

language = "English",

volume = "76",

pages = "9--12",

journal = "Scripta Materialia",

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TY - JOUR

T1 - Shear amorphization of boron suboxide

AU - Madhav Reddy, K.

AU - Hirata, A.

AU - Liu, P.

AU - Fujita, T.

AU - Goto, T.

AU - Chen, M. W.

N1 - Funding Information: This work is sponsored by JST-CREST “Phase Interface Science for Highly Efficient Energy Utilization” and “World Premier International (WPI) Center Initiative for Atoms, Molecules and Materials,” MEXT, Japan .

PY - 2014/4

Y1 - 2014/4

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

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U2 - 10.1016/j.scriptamat.2013.12.001

DO - 10.1016/j.scriptamat.2013.12.001

M3 - Article

AN - SCOPUS:84893812386

SN - 1359-6462

VL - 76

SP - 9

EP - 12

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Shear amorphization of boron suboxide

Abstract

Keywords

ASJC Scopus subject areas

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