Effect of 1. 5 weight percent Nb/sub 2/O/sub 5/ on the FE/sub 1/-FE/sub 2/ phase transition in the high PbZrO/sub 3/ region of the system PbZrO/sub 3/-PbTiO/sub 3/

Technical Report · Wed May 25 00:00:00 EDT 1983

OSTI ID:6237180

Starcher, K O

High Zr/sup 4 +/-containing Pb(Zr,Ti)O/sub 3/ (PZT) ceramic samples, doped with approximately 1.5 weight percent Nb/sub 2/O/sub 5/, were prepared and tested to determine the effect of the dopant on the FE/sub 1/-FE/sub 2/ phase boundary and other selected properties. Data from the seven compositions studied indicate the following effects of 1.5 weight percent Nb/sub 2/O/sub 5/ dopant (versus PZT with no niobia): Increases the FE/sub 1/-FE/sub 2/ transition temperature (approximately 30/sup 0/C for PZT 93/7*); increases the hydrostatic depoling pressure required to cause the ferroelectric-to-antiferroelectric transition (by more than 30,000 lb/in/sup 2/ for PZT 95/5); increases the remanent polarization (by approximately 15 ..mu..C/cm/sup 2/ for PZT 93/7) and decreases the coercive field (by approximately 1 kV/in. of sample thickness for PZT); and increases the piezoelectric coefficient d/sub 33/ (by approximately 14 x 10/sup -12/ Coulomb/Newton for PZT 93/7). 38 figures, 12 tables.

• Research Organization: General Electric Co., St. Petersburg, FL (USA). Neutron Devices Dept.
• DOE Contract Number: AC04-76DP00656
• OSTI ID: 6237180
• Report Number(s): GEPP-TIS-707; ON: DE83013336
• Resource Relation: Other Information: Portions are illegible in microfiche products. Original copy available until stock is exhausted
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
PZT
PHASE TRANSFORMATIONS
FERROELECTRIC MATERIALS
NIOBIUM OXIDES
CHALCOGENIDES
LEAD COMPOUNDS
NIOBIUM COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
TITANATES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
ZIRCONATES
ZIRCONIUM COMPOUNDS
360602* - Other Materials- Structure & Phase Studies