Chiang Mai Journal of Science

Print ISSN: 0125-2526 | eISSN : 2465-3845

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A Novel Method to Produce Silver Foams with Multilevel Porosities

Seksak Asavavisithchai, Ekasit Nisaratanaporn, and Yuttanant Boonyongmaneerat
* Author for corresponding; e-mail address: yuttanant.b@chula.ac.th
Volume: Vol.36 No.3 (SEPTEMBER 2009)
Research Article
DOI:
Received: 9 April 2009, Revised: -, Accepted: 20 May 2009, Published: -

Citation: Asavavisithchai S., Nisaratanaporn E. and Boonyongmaneerat Y., A Novel Method to Produce Silver Foams with Multilevel Porosities, Chiang Mai Journal of Science, 2009; 36(3): 296-301.

Abstract

Open-cell silver foams exhibiting a hierarchical pore system have been successfully produced through a novel powder-based replication approach which combines the uses of a space-holder and a chemical reduction process. The architecture of the foams is comprised of struts with high surface area, macropores, and micropores, which are respectively produced through partial reduction of silver salt, removal of the space-holder, and elimination of the remaining silver salt cores.

Keywords: silver, metallic foam, powder technology, porosity, microstructure

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