Published July 1995
| Version v1
Journal article
High-strength and high-fracture-toughness ceramics in the Al2O3/LaAl11O18 systems
- 1. National Industrial Research Institute of Nagoya (Japan)
Description
Control of microstructure in the Al2O3/LaAl11O18 system was performed. Elongated alumina grains were formed by doping with small addition of silica, and 20 vol% lanthanaluminate was formed in situ by the reaction of LaAlO3-Al2O3 in an alumina matrix. Strengths of over 600 MPa and a high fracture toughness (6 MPa·m1/2) were achieved in the material with both elongated Al2O3 grains and LaAl11O18 platelets. Generally antagonistic properties such as strength and fracture toughness have been made compatible in the same ceramic system
Additional details
Publishing Information
- Journal Title
- Journal of the American Ceramic Society
- Journal Volume
- 78
- Journal Issue
- 7
- Journal Page Range
- p. 1853-1856.
- ISSN
- 0002-7820
- CODEN
- JACTAW
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 27007670
- Subject category
- S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE;
- Descriptors DEI
- ALUMINIUM OXIDES; ANISOTROPY; COMPOSITE MATERIALS; FRACTURE PROPERTIES; GRAIN REFINEMENT; IN-SITU PROCESSING; LANTHANUM OXIDES; MECHANICAL PROPERTIES; MICROSTRUCTURE; PLATES; POWDERS; SCANNING ELECTRON MICROSCOPY; SINTERING
- Descriptors DEC
- ALUMINIUM COMPOUNDS; CHALCOGENIDES; CRYSTAL STRUCTURE; ELECTRON MICROSCOPY; FABRICATION; LANTHANUM COMPOUNDS; MATERIALS; MICROSCOPY; ORE PROCESSING; OXIDES; OXYGEN COMPOUNDS; RARE EARTH COMPOUNDS