Paper 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.

  Info
Periodical
Edited by
Pavel Šandera
Pages
560-563
DOI
10.4028/www.scientific.net/KEM.465.560
Citation
T. J. Marrow, D. Gonzalez, M. Aswad, J. Q. Da Fonseca, P. J. Withers, "In-Situ Observation and Modelling of Intergranular Cracking in Polycrystalline Alumina", Key Engineering Materials, Vol. 465, pp. 560-563, 2011
Online since
January 2011
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