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Residual stress in alumina-mullite composites

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1111/j.1151-2916.1991.tb04063.x
AuthorSearch for: ; Search for: ; Search for:
EditorSearch for: Green, D. J.
FormatText, Article
Abstract
Lattice strains have been measured by neutron diffraction from the alumina matrix in alumina–mullite composite cylinders. Infiltration processing results in a macroscopic variation of mullite concentration and residual stress throughout the samples. At the midheight of the cylinder, the stress component parallel to the cylinder axis is in a compression of −130 ± 30 MPa with respect to the value near the top surface. At the surfaces, the stress component parallel to the surface is in a compression of −130 ± 30 MPa with respect to values near the midheight of the cylinder. An overall tensile shift of the macroscopic stress profile in a fully infiltrated specimen is interpreted as a grain interaction effect between the alumina and mullite constituents. The positional dependence of the mullite phase concentration is also determined by neutron diffraction
Publication date
PublisherWiley
In
  • Journal of the American Ceramic Society 74, no. 3: 579–583.
LanguageEnglish
Peer reviewedYes
NRC publication
This is a non-NRC publication

"Non-NRC publications" are publications authored by NRC employees prior to their employment by NRC.

NRC numberCNRC 33347
NRC-IMI91AP-20200-1171-G
NPARC number23004512
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Record identifier02e39984-371c-4758-905b-fd833593ba04
Record created2018-11-09
Record modified2020-03-17
Date modified: