In-situ observation and modelling of intergranular cracking in polycrystalline alumina

T. James Marrow; David Gonzalez; Mohsin Aswad; João Quinta Da Fonseca; Philip J. Withers

doi:10.4028/www.scientific.net/KEM.465.560

In-situ observation and modelling of intergranular cracking in polycrystalline alumina

T. James Marrow, David Gonzalez, Mohsin Aswad, João Quinta Da Fonseca, Philip J. Withers

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

Abstract

A 3D model for intergranular thermal stresses in coarse polycrystalline alumina has been derived using Diffraction Contrast Tomography. Larger tensile thermal strains develop when the (0001) pole of adjacent grains lies closer to the grain boundary normal. This agrees with observations of cracked boundaries, obtained through digital image correlation of in-situ observations in fine alumina. © (2011) Trans Tech Publications, Switzerland.

Original language	English
Pages (from-to)	560-563
Number of pages	4
Journal	Key Engineering Materials
Volume	465
DOIs	https://doi.org/10.4028/www.scientific.net/KEM.465.560
Publication status	Published - 2011
Event	6th International Conference "Materials Structure and Micromechanics of Fracture, MSMF-6" - Brno Duration: 1 Jul 2011 → … http://<Go to ISI>://WOS:000291704700132

Keywords

Alumina
Diffraction contrast tomography
Image-based modelling

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10.4028/www.scientific.net/KEM.465.560

Cite this

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title = "In-situ observation and modelling of intergranular cracking in polycrystalline alumina",

abstract = "A 3D model for intergranular thermal stresses in coarse polycrystalline alumina has been derived using Diffraction Contrast Tomography. Larger tensile thermal strains develop when the (0001) pole of adjacent grains lies closer to the grain boundary normal. This agrees with observations of cracked boundaries, obtained through digital image correlation of in-situ observations in fine alumina. {\textcopyright} (2011) Trans Tech Publications, Switzerland.",

keywords = "Alumina, Diffraction contrast tomography, Image-based modelling",

author = "Marrow, {T. James} and David Gonzalez and Mohsin Aswad and {Da Fonseca}, {Jo{\~a}o Quinta} and Withers, {Philip J.}",

note = "Times Cited: 0 6th International Conference on Materials Structure and Micromechanics of Fracture Jun 28-30, 2010 Brno, CZECH REPUBLIC; 6th International Conference {"}Materials Structure and Micromechanics of Fracture, MSMF-6{"} ; Conference date: 01-07-2011",

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doi = "10.4028/www.scientific.net/KEM.465.560",

language = "English",

volume = "465",

pages = "560--563",

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publisher = "Trans Tech Publications Ltd",

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TY - JOUR

T1 - In-situ observation and modelling of intergranular cracking in polycrystalline alumina

AU - Marrow, T. James

AU - Gonzalez, David

AU - Aswad, Mohsin

AU - Da Fonseca, João Quinta

AU - Withers, Philip J.

N1 - Times Cited: 0 6th International Conference on Materials Structure and Micromechanics of Fracture Jun 28-30, 2010 Brno, CZECH REPUBLIC

PY - 2011

Y1 - 2011

N2 - A 3D model for intergranular thermal stresses in coarse polycrystalline alumina has been derived using Diffraction Contrast Tomography. Larger tensile thermal strains develop when the (0001) pole of adjacent grains lies closer to the grain boundary normal. This agrees with observations of cracked boundaries, obtained through digital image correlation of in-situ observations in fine alumina. © (2011) Trans Tech Publications, Switzerland.

AB - A 3D model for intergranular thermal stresses in coarse polycrystalline alumina has been derived using Diffraction Contrast Tomography. Larger tensile thermal strains develop when the (0001) pole of adjacent grains lies closer to the grain boundary normal. This agrees with observations of cracked boundaries, obtained through digital image correlation of in-situ observations in fine alumina. © (2011) Trans Tech Publications, Switzerland.

KW - Alumina

KW - Diffraction contrast tomography

KW - Image-based modelling

U2 - 10.4028/www.scientific.net/KEM.465.560

DO - 10.4028/www.scientific.net/KEM.465.560

M3 - Article

SN - 1013-9826

VL - 465

SP - 560

EP - 563

JO - Key Engineering Materials

JF - Key Engineering Materials

T2 - 6th International Conference "Materials Structure and Micromechanics of Fracture, MSMF-6"

Y2 - 1 July 2011

ER -

In-situ observation and modelling of intergranular cracking in polycrystalline alumina

Abstract

Keywords

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