Polarization reversal and electrocaloric measurements for field-enforced transitions in the system lead zirconate-lead titanate-lead oxide: tin oxide

Technical Report · Fri Jan 01 00:00:00 EST 1982

OSTI ID:5134329

Tuttle, B A

The Pb(Zr, Sn, Ti)O/sub 3/ crystalline solution series (PZST) has several phases of near equal free energy, allowing field-enforceable antiferroelectric (AFE) to ferroelectric (FE) and paraelectric (PE) to ferroelectric (FE) transitions. An understanding of the stability of FE, AFE, and PE phases with respect to chemical composition, electric field and temperature was developed from low frequency polarization vs electric field measurements at different temperatures. All materials studied had a sequence of phase transitions FE-AFE-PE with increasing temperature. The temperature range of AFE phase stability increased with increasing Zr/Ti ratio, while SnO/sub 2/ content increased the stability over a wider compositional range. Thus, through compositional modification, some materials were fabricated that had an AFE temperature range of stability of only 3/sup 0/C, while for others the temperature range of AFE phase stability was in excess of 100/sup 0/C.

• Research Organization: Illinois Univ., Urbana (USA)
• DOE Contract Number: AC02-78ER04679
• OSTI ID: 5134329
• Report Number(s): DOE/ER/04679-T1; ON: DE82019095
• Resource Relation: Other Information: Thesis. Portions of document are illegible
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
LEAD COMPOUNDS
DIELECTRIC PROPERTIES
PHASE STUDIES
POLARIZABILITY
TIN OXIDES
MICROSTRUCTURE
CHALCOGENIDES
CRYSTAL STRUCTURE
ELECTRICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
TIN COMPOUNDS
360202* - Ceramics
Cermets
& Refractories- Structure & Phase Studies