Accession Number:

ADA355211

Title:

Anionic Conducting Oxide Ceramics

Descriptive Note:

Final rept. 15 Apr 95-14 Apr 98

Corporate Author:

CALIFORNIA UNIV LOS ANGELES DEPT OF MATERIALS SCIENCE AND ENGINEERING

Personal Author(s):

• Dunn, Bruce
• Mackenzie, John D.

Report Date:

1998-04-01

Pagination or Media Count:

10.0

Abstract:

This program has emphasized the interrelationships among synthesis, microstructure and properties for oxygen ion conducting ceramics based on copper-substituted bismuth vanadate Bi V Cu O , known as BICUVOX. We showed that these materials readily formed dense ceramics with equiaxed microstructures and confirmed that they exhibited high ionic conductivity. Prolonged heat treatments at elevated temperatures did not cause significant changes in conductivity, an important consideration for electrochemical device operation. We also developed solution processing approaches for preparing thin films of the bsimuth vanadate materials.

Descriptors:

• *CONDUCTIVITY
• *CERAMIC MATERIALS
• *OXIDES
• *ANIONS
• *BISMUTH
• *VANADATES
• IONS
• MICROSTRUCTURE
• AIR FORCE RESEARCH
• SYNTHESIS
• MATERIALS
• HIGH TEMPERATURE
• THIN FILMS
• ELECTROCHEMISTRY
• HEAT TREATMENT
• HIGH DENSITY

Subject Categories:

• Inorganic Chemistry
• Ceramics, Refractories and Glass

Distribution Statement:

APPROVED FOR PUBLIC RELEASE