TY - GEN
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
PY - 2013
Y1 - 2013
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.
UR - https://www.scopus.com/pages/publications/84880887141
M3 - Conference contribution
AN - SCOPUS:84880887141
SN - 9781118744093
T3 - Ceramic Transactions
SP - 331
EP - 336
BT - Processing and Properties of Advanced Ceramics and Composites V
T2 - Processing and Properties of Advanced Ceramics and Composites V - Materials Science and Technology 2012 Conference, MS and T 2012
Y2 - 7 October 2012 through 12 October 2012
ER -