Effect of decomposition on the densification and properties of nasicon ceramic electrolytes

Journal Article · Sat Oct 01 04:00:00 EDT 1983 · J. Am. Ceram. Soc.; (United States)

DOI:https://doi.org/10.1111/j.1151-2916.1983.tb10541.x· OSTI ID:6461296

McEntire, B J; Bartlett, R A; Gordon, R S; Miller, G R

Nasicon ceramic electrolytes were processed and characterized using a number of different techniques. The materials were sintered at T = 1100/sup 0/C to 1375/sup 0/C. Results of this work demonstrate that Nasicon ceramics with compositions around x = 2 (i.e. Na/sub 3/Zr/sub 2/Si/sub 2/PO/sub 12/), are not monophase, possess poor mechanical strength and an anomalous thermal expansion behavior, and are subject to chemical and phase instability during densification at high temperatures. Wet-chemical techniques, X-ray diffraction, and SEM analyses were used to observe the phase and chemical decomposition of these materials. The products of this decomposition process are correlated with the poor physical properties.

• Research Organization: Ceramatec, Inc., Salt Lake City, Utah
• OSTI ID: 6461296
• Journal Information: J. Am. Ceram. Soc.; (United States), Journal Name: J. Am. Ceram. Soc.; (United States) Vol. 66:10; ISSN JACTA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360203* -- Ceramics
Cermets
& Refractories-- Mechanical Properties
ALKALI METAL COMPOUNDS
CERAMICS
COHERENT SCATTERING
DENSITY
DIFFRACTION
ELECTROLYTES
ELECTRON MICROSCOPY
EXPANSION
FABRICATION
MECHANICAL PROPERTIES
MICROSCOPY
OXYGEN COMPOUNDS
PHOSPHATES
PHOSPHORUS COMPOUNDS
PHYSICAL PROPERTIES
SCANNING ELECTRON MICROSCOPY
SCATTERING
SILICON COMPOUNDS
SILICON PHOSPHATES
SINTERING
SODIUM COMPOUNDS
SODIUM PHOSPHATES
SOLID ELECTROLYTES
THERMAL DEGRADATION
THERMAL EXPANSION
TRANSITION ELEMENT COMPOUNDS
VERY HIGH TEMPERATURE
X-RAY DIFFRACTION
ZIRCONIUM COMPOUNDS
ZIRCONIUM PHOSPHATES