Relaxational polarization and diffuse phase transitions of LA-substituted Pb (Zr,Ti)O3-ceramics

M. Wolters, A.J. Burggraaf

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Abstract

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.
Original languageEnglish
Pages (from-to)417-423
JournalMaterials research bulletin
Volume10
Issue number5
DOIs
Publication statusPublished - 1975

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Phase transitions
ceramics
Polarization
polarization
Permittivity
permittivity
Temperature
temperature
Curie temperature
Dielectric properties
dielectric properties
standard deviation
intervals
curves

Cite this

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title = "Relaxational polarization and diffuse phase transitions of LA-substituted Pb (Zr,Ti)O3-ceramics",
abstract = "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.",
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language = "English",
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Relaxational polarization and diffuse phase transitions of LA-substituted Pb (Zr,Ti)O3-ceramics. / Wolters, M.; Burggraaf, A.J.

In: Materials research bulletin, Vol. 10, No. 5, 1975, p. 417-423.

Research output: Contribution to journalArticleAcademic

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 -