TY - GEN
T1 - Measurements of the thermal, dielectric, piezoelectric, pyroelectric and elastic properties of porous PZT samples
AU - Lang, Sidney B.
AU - Ringgaard, Erling
PY - 2009/12/1
Y1 - 2009/12/1
N2 - The introduction of porosity into ferroelectric ceramics has been of great interest in recent years. In particular, studies of porous lead-zirconate- titanate ceramic (PZT) have been made. In the research reported, samples of Ferroperm Pz27 with porosities of 20, 25 and 30% were studied. Very complete measurements were made of all of the physical properties relevant for ferroelectric applications including thermal conductivity and diffusivity, heat capacity, dielectric, pyroelectric, piezoelectric and elastic properties. Scanning electron micrographs indicated a change from 3-0 to 3-3 connectivity with increasing porosity. Although most of the physical properties are degraded by the presence of porosity, both piezoelectric and pyroelectric figures-of-merit are improved because of the markedly reduced relative permittivity. Porous ferroelectric ceramics are very promising materials for a number of applications.
AB - The introduction of porosity into ferroelectric ceramics has been of great interest in recent years. In particular, studies of porous lead-zirconate- titanate ceramic (PZT) have been made. In the research reported, samples of Ferroperm Pz27 with porosities of 20, 25 and 30% were studied. Very complete measurements were made of all of the physical properties relevant for ferroelectric applications including thermal conductivity and diffusivity, heat capacity, dielectric, pyroelectric, piezoelectric and elastic properties. Scanning electron micrographs indicated a change from 3-0 to 3-3 connectivity with increasing porosity. Although most of the physical properties are degraded by the presence of porosity, both piezoelectric and pyroelectric figures-of-merit are improved because of the markedly reduced relative permittivity. Porous ferroelectric ceramics are very promising materials for a number of applications.
UR - https://www.scopus.com/pages/publications/77949307421
U2 - 10.1109/CEIDP.2009.5377713
DO - 10.1109/CEIDP.2009.5377713
M3 - Conference contribution
AN - SCOPUS:77949307421
SN - 9781424445592
T3 - Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
SP - 739
EP - 742
BT - CEIDP - 2009 Annual Report Conference on Electrical Insulation and Dielectric Phenomena
T2 - 2009 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
Y2 - 18 October 2009 through 21 October 2009
ER -