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R aman Spectroscopic Observations of Ferroelastic Switching in Ceria‐Stabilized Zirconia
Author(s) -
Bolon Amy M.,
Gentleman Molly M.
Publication year - 2011
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.1551-2916.2011.04737.x
Subject(s) - ferroelasticity , raman spectroscopy , materials science , tetragonal crystal system , hysteresis , cubic zirconia , phase (matter) , ceramic , diamond , mineralogy , composite material , analytical chemistry (journal) , ferroelectricity , chemistry , optics , optoelectronics , dielectric , physics , chromatography , quantum mechanics , organic chemistry
Ferroelasticity was observed in 18‐mol% ceria‐stabilized zirconia using polarized confocal Raman spectroscopy. Samples were either indented using a diamond Vickers indenter or loaded uniaxially in a diamond anvil cell to induce the ferroelastic behavior. The presence and formation of the ferroelastic domains were observed by monitoring the relative intensities of the B 1g and A 1g Raman modes for the tetragonal phase. Domain switching was found to be present on the surfaces in the damaged materials both inside and around cracks. Loading of the ceramic materials revealed hysteresis in the relative intensities of the Raman peaks as a function of loading and unloading.