Pressure-temperature phase diagram for a tin modified lead zirconate titanate ceramic.

Conference · Tue Jun 01 04:00:00 EDT 2010

OSTI ID:1020369

Grubbs, Robert K; DiAntonio, Christopher Brian; Yang, Pin; Roesler, Alexander William; Montgomery, Stephen Tedford; Moore, Roger Howard

Structural phase transformations between ferroelectric (FE), antiferroelectric (AFE), and paraelectric (FE) phases are frequently observed in the zirconia-rich phase region on the lead zirconate-titanate (PZT) phase diagram. Since the free energy difference among these phases is small, phase transformation can be easily induced by temperature, pressure and electric field. These induced transformation characteristics have been used for many practical applications. This study focuses on a hydrostatic pressure induced FE-to-AFE phase transformation in a tin modified PZT ceramic (PSZT). The relative phase stability between FE and AFE phases is determined by the dielectric permittivity measurement as a function of temperature from -60 C to 125 C. A pressure-temperature phase diagram for the PSZT system will be presented.

• Research Organization: Sandia National Laboratories
• Sponsoring Organization: USDOE
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 1020369
• Report Number(s): SAND2010-3761C
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CERAMICS
DIELECTRIC MATERIALS
ELECTRIC FIELDS
FREE ENERGY
HYDROSTATICS
PERMITTIVITY
PHASE DIAGRAMS
PHASE STABILITY
PHASE TRANSFORMATIONS
PZT
TRANSFORMATIONS