TY - JOUR
T1 - Relaxational polarization and diffuse phase transitions of LA-substituted Pb (Zr,Ti)O3-ceramics
AU - Wolters, M.
AU - Burggraaf, A.J.
PY - 1975
Y1 - 1975
N2 - Dielectric properties of (Pb,La)Zr0.55Ti0.45O3 ceramics have been investigated as functions of temperature and frequency. The dielectric constant as a function of temperature can be represented over a considerable temperature interval by a quadratic law of the type: ε−1=ε−1max + C(T−TC')2. The permittivity versus temperature curves are strongly broadened around TC' (where ϵ is at a maximum) and the dielectric behaviour is at least partly of a relaxational nature. Interpretation of the dielectric behaviour (broadening, frequency dependence, quadratic law) seems possible by assuming a distribution of local Curie temperatures; the standard deviation of which can be correlated with the La concentration.
AB - Dielectric properties of (Pb,La)Zr0.55Ti0.45O3 ceramics have been investigated as functions of temperature and frequency. The dielectric constant as a function of temperature can be represented over a considerable temperature interval by a quadratic law of the type: ε−1=ε−1max + C(T−TC')2. The permittivity versus temperature curves are strongly broadened around TC' (where ϵ is at a maximum) and the dielectric behaviour is at least partly of a relaxational nature. Interpretation of the dielectric behaviour (broadening, frequency dependence, quadratic law) seems possible by assuming a distribution of local Curie temperatures; the standard deviation of which can be correlated with the La concentration.
U2 - 10.1016/0025-5408(75)90013-6
DO - 10.1016/0025-5408(75)90013-6
M3 - Article
VL - 10
SP - 417
EP - 423
JO - Materials research bulletin
JF - Materials research bulletin
SN - 0025-5408
IS - 5
ER -