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Technique for Measuring Grain‐Boundary Mobility: Application to MgO‐Doped Al 2 O 3
Author(s) -
Glaeser A.M.,
Chen J. C.
Publication year - 1982
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1982.tb10472.x
Subject(s) - grain boundary , doping , materials science , grain growth , laser , analytical chemistry (journal) , mineralogy , condensed matter physics , composite material , grain size , optoelectronics , optics , microstructure , chemistry , physics , chromatography
An experimental technique employing localized laser heating has been developed to seed abnormal grain growth in Mg‐doped Al 2 O 3 permitting the migration behavior of individual grain boundaries to be investigated. Nonuniform growth of both naturally nucleated and laser‐nucleated abnormal grains was observed. Calculated boundary mobilities exceeded those characterizing grain growth in both doped and undoped porous Al 2 O 3 ).