| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10626279 | Ceramics International | 2011 | 7 Pages |
Abstract
Pulsed electric current sintering (PECS) was applied to obtain transparent ruby polycrystals. Al2O3-Cr2O3 powder mixture was prepared by drying an aqueous slurry consisting of Al2O3 and Cr(NO3)3 followed by PECS consolidation in vacuum at a sintering temperatures ranging from 1100 to 1300 °C with various heating rates between 2 and 100 °C/min and under an applied pressures from 40 to 100 MPa. Slow heating rate and high-pressure lead to highly densified and transparent Cr-doped Al2O3 polycrystals at sintering temperature of 1200 °C.
Related Topics
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Authors
Khanh Quoc Dang, Shinichi Takei, Masakazu Kawahara, Makoto Nanko,