Investigations of the effect of the morphology of Nb dopant on lead zirconate ceramic

Conference · Mon Jan 01 04:00:00 EST 1979

OSTI ID:6064798

Keck, J D; Wilcox, P D

The microstructures of ferroelectric ceramics are a result of the dopants and of the many process variables associated with raw materials, powder processing, and ceramic firing. Metal ion substitutions of higher than normal valency are used as sintering aids to promote densification, to increase electrical resistivity, and to develop mature homogeneous microstructures with desirable piezoelectric and ferroelectric properties. Investigations are reported for the barium modified lead zirconate system which is analogous to the lead zirconate titanate system, in which Nb is used as a sintering aid. The morphology and concentration of the Nb are shown to affect both electrical properties and the microstructure.

• Research Organization: Sandia Labs., Albuquerque, NM (USA)
• DOE Contract Number: EY-76-C-04-0789
• OSTI ID: 6064798
• Report Number(s): SAND-78-2444C; CONF-790670-2
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
CERAMICS
CRYSTAL STRUCTURE
ELECTRICAL PROPERTIES
ELEMENTS
LEAD COMPOUNDS
METALS
MICROSTRUCTURE
MORPHOLOGY
NIOBIUM
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
REFRACTORY METALS
TRACE AMOUNTS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
ZIRCONATES
ZIRCONIUM COMPOUNDS