Stoichiometry Defect at Grain Boundary Observed by Nano-Scale TEM Microanalysis in Spinel MgAl2O4

Spinel presents a grain boundary sliding deformation accommodated by diffusion during creep at high temperature. A space charge layer at grain boundary in ionic ceramics can explain the observed interface reaction controlling diffusion at low stress. The purpose of this work is to study the grain bo...

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Published in:Advanced engineering materials 2004-10, Vol.6 (10), p.822-825
Main Authors: Nuns, N., Béclin, F., Crampon, J.
Format: Article
Language:English
Subjects:
Condensed matter: structure, mechanical and thermal properties
Defects and impurities in crystals
microstructure
Exact sciences and technology
Grain and twin boundaries
Microanalysis
Physics
Plastic deformation
Structure of solids and liquids
crystallography
Superplasticity
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creator Nuns, N.
Béclin, F.
Crampon, J.
description Spinel presents a grain boundary sliding deformation accommodated by diffusion during creep at high temperature. A space charge layer at grain boundary in ionic ceramics can explain the observed interface reaction controlling diffusion at low stress. The purpose of this work is to study the grain boundary region stoichiometry to confirm this theory.
doi_str_mv 10.1002/adem.200400083
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source Wiley-Blackwell Read & Publish Collection
subjects Condensed matter: structure, mechanical and thermal properties
Defects and impurities in crystals
microstructure
Exact sciences and technology
Grain and twin boundaries
Microanalysis
Physics
Plastic deformation
Structure of solids and liquids
crystallography
Superplasticity
title Stoichiometry Defect at Grain Boundary Observed by Nano-Scale TEM Microanalysis in Spinel MgAl2O4
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