Abstract
Consolidation of ceramic parts may be achieved by several techniques, including the slip casting and cold isostatic pressing (CIP) methods. In the present work, the performances of the two methods are compared in the fabrication of nanostructured zirconia compacts for dental crown applications. First, a zirconia suspension suitable for slip casting was prepared. The rheological properties of the zirconia suspension were optimized by adding a dispersant agent and controlling the pH. Zirconia slurries were then slip-cast into a pellet. Second, another group of zirconia pellets were fabricated using uniaxial pressing and were then cold-isostatically pressed. Both slip-cast and CIP samples were sintered at 1300 °C with a soaking time of 2 hrs. The mechanical properties of both samples were compared. The samples prepared by slip casting were denser compared with those prepared via CIP. Slip casting technique produced samples with 98.8% of the theoretical density, which resulted in the high Vickers hardness (11.4 GPa) of the slip-cast samples. Morphological studies revealed that the microstructures of the slip cast-sample were more homogeneous and contain no porosity. The formation of such a structure is due to the enhancement of the particle packing efficiency by slip casting as well as to the removal of larger agglomerates by colloidal processing prior to casting. As a consolidation stage, slip casting appears to be more suitable than the CIP technique in preparing reliable nanostructural ceramic parts.
| Original language | English |
|---|---|
| Title of host publication | Advanced Materials Research |
| Publisher | Trans Tech Publications |
| Pages | 335-338 |
| Number of pages | 4 |
| Volume | 896 |
| ISBN (Print) | 9783038350316 |
| DOIs | |
| Publication status | Published - 2014 |
| Event | 2013 International Conference on Advanced Materials Science and Technology, ICAMST 2013 - Yogyakarta Duration: 17 Sep 2013 → 18 Sep 2013 |
Publication series
| Name | Advanced Materials Research |
|---|---|
| Volume | 896 |
| ISSN (Print) | 10226680 |
Other
| Other | 2013 International Conference on Advanced Materials Science and Technology, ICAMST 2013 |
|---|---|
| City | Yogyakarta |
| Period | 17/9/13 → 18/9/13 |
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Keywords
- Cold isostatic pressing
- Dental crown
- Mechanical properties
- Nanostructured zirconia
- Slip casting
ASJC Scopus subject areas
- Engineering(all)
Cite this
Comparison between slip casting and cold isostatic pressing for the fabrication of nanostructured zirconia. / Amat, Noor Faeizah; Muchtar, Andanastuti; Yahaya, Norziha; Ghazali, Mariyam Jameelah; Hao, Chin Chuin.
Advanced Materials Research. Vol. 896 Trans Tech Publications, 2014. p. 335-338 (Advanced Materials Research; Vol. 896).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Comparison between slip casting and cold isostatic pressing for the fabrication of nanostructured zirconia
AU - Amat, Noor Faeizah
AU - Muchtar, Andanastuti
AU - Yahaya, Norziha
AU - Ghazali, Mariyam Jameelah
AU - Hao, Chin Chuin
PY - 2014
Y1 - 2014
N2 - Consolidation of ceramic parts may be achieved by several techniques, including the slip casting and cold isostatic pressing (CIP) methods. In the present work, the performances of the two methods are compared in the fabrication of nanostructured zirconia compacts for dental crown applications. First, a zirconia suspension suitable for slip casting was prepared. The rheological properties of the zirconia suspension were optimized by adding a dispersant agent and controlling the pH. Zirconia slurries were then slip-cast into a pellet. Second, another group of zirconia pellets were fabricated using uniaxial pressing and were then cold-isostatically pressed. Both slip-cast and CIP samples were sintered at 1300 °C with a soaking time of 2 hrs. The mechanical properties of both samples were compared. The samples prepared by slip casting were denser compared with those prepared via CIP. Slip casting technique produced samples with 98.8% of the theoretical density, which resulted in the high Vickers hardness (11.4 GPa) of the slip-cast samples. Morphological studies revealed that the microstructures of the slip cast-sample were more homogeneous and contain no porosity. The formation of such a structure is due to the enhancement of the particle packing efficiency by slip casting as well as to the removal of larger agglomerates by colloidal processing prior to casting. As a consolidation stage, slip casting appears to be more suitable than the CIP technique in preparing reliable nanostructural ceramic parts.
AB - Consolidation of ceramic parts may be achieved by several techniques, including the slip casting and cold isostatic pressing (CIP) methods. In the present work, the performances of the two methods are compared in the fabrication of nanostructured zirconia compacts for dental crown applications. First, a zirconia suspension suitable for slip casting was prepared. The rheological properties of the zirconia suspension were optimized by adding a dispersant agent and controlling the pH. Zirconia slurries were then slip-cast into a pellet. Second, another group of zirconia pellets were fabricated using uniaxial pressing and were then cold-isostatically pressed. Both slip-cast and CIP samples were sintered at 1300 °C with a soaking time of 2 hrs. The mechanical properties of both samples were compared. The samples prepared by slip casting were denser compared with those prepared via CIP. Slip casting technique produced samples with 98.8% of the theoretical density, which resulted in the high Vickers hardness (11.4 GPa) of the slip-cast samples. Morphological studies revealed that the microstructures of the slip cast-sample were more homogeneous and contain no porosity. The formation of such a structure is due to the enhancement of the particle packing efficiency by slip casting as well as to the removal of larger agglomerates by colloidal processing prior to casting. As a consolidation stage, slip casting appears to be more suitable than the CIP technique in preparing reliable nanostructural ceramic parts.
KW - Cold isostatic pressing
KW - Dental crown
KW - Mechanical properties
KW - Nanostructured zirconia
KW - Slip casting
UR - http://www.scopus.com/inward/record.url?scp=84896257315&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84896257315&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMR.896.335
DO - 10.4028/www.scientific.net/AMR.896.335
M3 - Conference contribution
SN - 9783038350316
VL - 896
T3 - Advanced Materials Research
SP - 335
EP - 338
BT - Advanced Materials Research
PB - Trans Tech Publications
ER -