TY - CHAP
T1 - The Effect of A-Site Vacancies on Cell Volume and Tolerance Factor of Perovskites
AU - Ubic, Rick
AU - Tolman, Kevin
AU - Chan, Kokfoong
AU - Lundy, Nicole
AU - Letourneau, Steven
AU - Kriven, Waltraud
N1 - Publisher Copyright:
© 2013 The American Ceramic Society. All rights reserved.
PY - 2013/7/1
Y1 - 2013/7/1
N2 - Point defects like vacancies can have a profound effect on the structure of perovskite ceramics, but the exact mechanisms by which they do this are unclear. A predictive model for the pseudocubic lattice constant of perovskites, based solely on published ionic radii data, has been developed and adapted as a model for tolerance factor. These models more consistently predict both pseudocubic lattice constant, hence cell volume, and the tolerance factor than existing methods, thus also more accurately modeling the temperature coefficient of resonant frequency (TCF). The relationship between tolerance factor and TCF is revisited.
AB - Point defects like vacancies can have a profound effect on the structure of perovskite ceramics, but the exact mechanisms by which they do this are unclear. A predictive model for the pseudocubic lattice constant of perovskites, based solely on published ionic radii data, has been developed and adapted as a model for tolerance factor. These models more consistently predict both pseudocubic lattice constant, hence cell volume, and the tolerance factor than existing methods, thus also more accurately modeling the temperature coefficient of resonant frequency (TCF). The relationship between tolerance factor and TCF is revisited.
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U2 - 10.1002/9781118744109.ch36
DO - 10.1002/9781118744109.ch36
M3 - Chapter
AN - SCOPUS:85013195817
SN - 9781118744093
VL - 240
SP - 331
EP - 336
BT - Ceramic Transactions
PB - Wiley
ER -