Sellappan, Pathikumar ; Jayaram, Vikram ; Chokshi, Atul Harish ; Divakar, Canchi (2007) Synthesis of bulk, dense, nanocrystalline yttrium aluminum garnet from amorphous powders Journal of the American Ceramic Society, 90 (11). pp. 3638-3641. ISSN 0002-7820
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Official URL: http://onlinelibrary.wiley.com/doi/10.1111/j.1551-...
Related URL: http://dx.doi.org/10.1111/j.1551-2916.2007.01913.x
Abstract
Amorphous powders of Al2O3-37.5 mol% Y2O3 (yttrium aluminum garnet (YAG)) were prepared by coprecipitation, decomposed at 800°C, and hot-pressed uniaxally at low temperature (600°C) and a moderate pressure (750 MPa). Optimum conditions yielded microstructures with only 2% porosity and partial crystallization of YAG. Further processing using high quasi-hydrostatic pressure (1 GPa) at 1000°C enabled the production of fully crystallized YAG with >96% relative density and a nanocrystalline grain size of ~70 nm.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Ceramic Society. |
| ID Code: | 13690 |
| Deposited On: | 12 Nov 2010 15:06 |
| Last Modified: | 23 Feb 2011 07:02 |
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