Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1625023 | Journal of Alloys and Compounds | 2008 | 5 Pages |
Abstract
AlN ceramics synthesized by carbothermal reduction using the mechanical activated Al2O3 were investigated. The results show that, using the commercial Al2O3 not milled, the temperature was higher than 1600 °C when the carbothermal reduction reaction was completed, but, if the Al2O3 was milled by high-energy ball mill for 20 h, the carbothermal reduction reaction occurred below 1100 °C and completed thoroughly at 1250 °C, and all of Al2O3 transformed to AlN. These AlN powders can be sintered at about 1600 °C, and the mechanical properties of these AlN ceramics are as good as that of commercial AlN powders sintered at 1800 °C.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Shengqi Xi, Xinkuan Liu, Pengliang Li, Jingen Zhou,