Abstract
Freeze-spray deposition (FSD) method is described for rapid fabrication of layered composites with controlled layer thickness and uniform microstructure. The graded alumina/zirconia composites are fabricated by FSD of ceramic slurries followed by freeze drying. Aqueous slurries with glycerol addition are sprayed on a cooled substrate using an automated 3D gantry system. Processing parameters such as viscosity of the ceramic slurries, composition and thickness of deposited layers as well as sintering conditions are investigated to optimize the fabrication process. Microstructural analysis of the fabricated composites revealed uniform and crack-free transitional layers indicating a strong interfacial bonding between the layers.
Recommended Citation
Q. Fu et al., "Freeze-spray deposition of layered alumina/zirconia composites," Materials Science and Engineering: B, vol. 161, no. 1-3, pp. 120 - 124, Elsevier, Apr 2009.
The definitive version is available at https://doi.org/10.1016/j.mseb.2008.12.014
Department(s)
Materials Science and Engineering
Keywords and Phrases
Freeze deposition; Freeze drying; Layered composites; Graded structures
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2026 Elsevier B.V., All rights reserved
Publication Date
2007-04-15
Comments
Acknowledgements: This work was supported by the Air Force Research Laboratories under contract FA8650-04-C-5704.We thank Drs. M. Leu, G. Hilmas, R. Landers, and S. Reis for useful discussions.