We report SiC ceramics sintered with AlN and Sc2O3 (or Lu2O3) that retain room temperature strength to 1500 °C. The intergranular glassy phase has not been observed in the ceramics due to a designed-sintering additive and, thus, the unsatisfactory effect of glassy phases on the high temperature strength is eliminated.
Bibliographical noteFunding Information:
Kim YW acknowledges support of this work by the Korea Science and Engineering Foundation (KOSEF) under Grant No. R01-2001-00255. Choi HJ acknowledges partial support of this work by the National Program for Nanostructured Materials Technology of the Korea Ministry of Science and Technology as one of the 21st Century Frontier Programs.
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys