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 |
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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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Aqueous slip casting of transparent yttrium aluminum garnet (YAG) ceramics. / Appiagyei, Kwadwo A.; Messing, Gary L.; Dumm, John Q.
In: Ceramics International, Vol. 34, No. 5, 01.07.2008, p. 1309-1313.Research output: Contribution to journal › Article
TY - JOUR
T1 - Aqueous slip casting of transparent yttrium aluminum garnet (YAG) ceramics
AU - Appiagyei, Kwadwo A.
AU - Messing, Gary L.
AU - Dumm, John Q.
PY - 2008/7/1
Y1 - 2008/7/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=43449088830&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=43449088830&partnerID=8YFLogxK
U2 - 10.1016/j.ceramint.2007.03.010
DO - 10.1016/j.ceramint.2007.03.010
M3 - Article
AN - SCOPUS:43449088830
VL - 34
SP - 1309
EP - 1313
JO - Ceramics International
JF - Ceramics International
SN - 0272-8842
IS - 5
ER -