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Phase Relations in (Pb,La)Zr 0.65 Ti 0.35 O 3
Author(s) -
O'BRYAN H. M.
Publication year - 1973
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1973.tb12692.x
Subject(s) - antiferroelectricity , poling , ferroelectricity , dielectric , materials science , trigonal crystal system , phase transition , piezoelectricity , phase (matter) , mineralogy , ceramic , analytical chemistry (journal) , condensed matter physics , crystallography , crystal structure , chemistry , metallurgy , physics , composite material , optoelectronics , chromatography , organic chemistry
Low‐temperature phase relations in (Pb,La)Zr 0.65 Ti 0.35 O 3 ceramics were determined as a function of La content and temperature. Dielectric and piezoelectric measurements and X‐ray data were used to locate and identify phase transitions. The FE 1 ‐FE 2 transition between rhombohedral ferroelectric phases occurs at higher temperatures as the La eontent is increased. For x >4, where x is the atom % La substituted for Pb, a phase region exists between the paraelectric and ferroelectric states. Dielectric data suggest that this region is antiferroelectric. For 6< x <9 a field‐induced phase transition accompanies poling. Poled material with x ∼8 exhibits unusual mechanical properties.