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Coarsening Kinetics of the Tetragonal Phase in a Magnesia‐Partially‐Stabilized Zirconia
Author(s) -
Bateman Charles A.,
Notis Michael R.,
Williams David B.
Publication year - 1989
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.1151-2916.1989.tb06094.x
Subject(s) - tetragonal crystal system , volume fraction , kinetics , materials science , cubic zirconia , particle size , diffusion , transmission electron microscopy , phase (matter) , particle (ecology) , reaction rate constant , particle size distribution , ostwald ripening , magnesium , mineralogy , thermodynamics , crystallography , analytical chemistry (journal) , chemistry , metallurgy , nanotechnology , composite material , chromatography , ceramic , physics , geology , organic chemistry , oceanography , quantum mechanics
The coarsening kinetics of the tetragonal phase in a magnesia‐partiallystabilized zirconia at 1420°C was examined using transmission electron microscopy and found to be controlled by volume diffusion. The rate constant was larger and the particle‐size distribution was broader than predicted by the Lifshitz–Slyozov–Wagner theory of particle coarsening. A volume fraction modified coarsenng theory was found which better fits the experimental rate constant and particle‐size distribution.