*Member, The American Ceramics Society.
The Effect of Polyvinyl Alcohol on the Microstructure and Permeability of Freeze-Cast Alumina
Article first published online: 11 NOV 2009
© 2009 The American Ceramic Society
Journal of the American Ceramic Society
Volume 93, Issue 1, pages 115–120, January 2010
How to Cite
Peko, C., Groth, B. and Nettleship, I. (2010), The Effect of Polyvinyl Alcohol on the Microstructure and Permeability of Freeze-Cast Alumina. Journal of the American Ceramic Society, 93: 115–120. doi: 10.1111/j.1551-2916.2009.03398.x
G. Franks—contributing editor
The authors would like to thank the National Science Foundation (NSF) for the financial support of the work under grant number 0404874.
- Issue published online: 21 DEC 2009
- Article first published online: 11 NOV 2009
- Manuscript No. 25930. Received February 25, 2009; approved August 25, 2009.
This study examined the effect of polyvinyl alcohol (PVA) on the microstructure and permeability of freeze-cast porous alumina. The PVA addition was shown to have a significant effect on the pore size, with the trends in microstructure morphology and scale being qualitatively consistent with the effects of PVA addition on constitutional supercooling. The measured Darcian permeabilities were between 10−10 m2 and 10−12 m2. The permeability decreased as the PVA content increased and a significant fraction of the flow could be attributed to inertial effects.