Abstract
Transparent YAG ceramics were prepared by slip casting an aqueous dispersed mixture of commercial Al2O3 and Y2O3 powders. The powders were co-dispersed with poly(acrylic acid) and citric acid. Polyethylene glycol of 0.5 wt.% (PEG 4000) and 0.5 wt.% tetraethyl orthosilicate were added as binder and a sintering aid, respectively. Dried samples were vacuum sintered at 1800 °C for 16 h. In general, YAG ceramics cast from Newtonian suspensions were optically transparent and had optical transmittances >80% from 340 to 840 nm. Slightly flocculated dispersions, as evidenced by higher viscosity and non-Newtonian rheology, resulted in translucent samples with large pores and lower optical transmittances.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1309-1313 |
| Number of pages | 5 |
| Journal | Ceramics International |
| Volume | 34 |
| Issue number | 5 |
| DOIs | |
| State | Published - Jul 1 2008 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Ceramics and Composites
- Process Chemistry and Technology
- Surfaces, Coatings and Films
- Materials Chemistry
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Appiagyei, K. A., Messing, G. L., & Dumm, J. Q. (2008). Aqueous slip casting of transparent yttrium aluminum garnet (YAG) ceramics. Ceramics International, 34(5), 1309-1313. https://doi.org/10.1016/j.ceramint.2007.03.010