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Freeze Casting of Aqueous Alumina Slurries with Glycerol
Abstract
Freeze‐drying concepts were utilized in the shape forming of alumina parts by pressureless slip molding using aqueous slurries. A water solidification modifier, glycerol, was utilized to eliminate the defects associated with the expansion and ceramic particle rejection of water during freezing. Castable alumina slurries with solids loading up to 60 vol% were prepared and characterized using viscosity and zeta‐potential measurements with and without glycerol additions. Frozen parts were dried under vacuum by sublimation of ice to obtain net‐shape green bodies. The combined effects of high‐solids‐loading slurries, >57.5 vol%, and glycerol additions were essential for freeze casting to achieve highly dense alumina bodies with a uniform microstructure.
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Citations
Cited by
Freeze‐Casting of Porous Ceramics: A Review of Current Achievements and Issues
Deville, S. (2008) · Advanced Engineering Materials · doi:10.1002/adem.200700270 · Cited by 1,260
Freeze casting of porous materials: review of critical factors in microstructure evolution
Li, W. L., Lu, K., & Walz, J. Y. (2012) · International Materials Reviews · doi:10.1179/1743280411y.0000000011 · Cited by 372
Metadata
- Authors
- Sofie, S. W., & Dogan, F.
- Venue
- Journal of the American Ceramic Society
- Publisher
- Wiley
- Published
- 2001-07
- Volume
- 84
- Issue
- 7
- Pages
- 1459-1464
- ISSN
- 0002-7820 (ISSN-L)
- 1551-2916
- OpenAlex
- W2132431006
- Cited by
- 235
- References
- 0
- FWCI
- 5.05
- Type
- journal article
- Language
- en
- Open access
- closed
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- Sofie, S. W., & Dogan, F. (2001). Freeze Casting of Aqueous Alumina Slurries with Glycerol. Journal of the American Ceramic Society. https://doi.org/10.1111/j.1151-2916.2001.tb00860.x
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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