| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1624019 | Journal of Alloys and Compounds | 2008 | 5 Pages |
Abstract
Aluminum nitride ceramics with La2O3 as a sintering aid were obtained under high pressure (5.0 GPa) in a cubic anvil high-pressure and high-temperature apparatus. The results showed that the method could effectively lower the sintering temperature and shorten the sintering time. Under 5.0 GPa, the lowest sintering temperature was 1300 °C, which was above 300 °C lower than that for conventional liquid-phase sintering. The lattice parameters of the specimens sintered at high pressure were found to decrease by about 0.09% than that of the AlN powder, and residual compressive stress was found, while hexagonal lattice of AlN was not changed.
Related Topics
Physical Sciences and Engineering
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Metals and Alloys
Authors
X.L. Li, H.A. Ma, Y.J. Zheng, Y. Liu, G.H. Zuo, W.Q. Liu, J.G. Li, X. Jia,