Preparation of high porosity metal foams

Date

2000-12-01

Author

Jee, CSY
Ozguven, N
Guo, ZX
Evans, JRG

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Metal foams with porosities greater than 90 pet were prepared by a novel powder metallurgy route using a polymeric vehicle. Coarse titanium powder and fine carbonyl iron powder were tested. The powders were blended with each component of a two-part polyol-isocyanate foaming system, and the resulting suspensions were mixed and allowed to expand. Although the resulting polymer-metal foam was closed cell, particles were not retained in the windows. Upon pyrolysis to remove the resin, the windows opened and the final sintered metal foam was reticulated. Such foams present very low sintered density and are correspondingly weak after sintering but offer a fine reticulated structure with cell diameters in the region of 100 to 200 mum. They may have applications in the areas of catalysis, biomaterials, and composites.

Subject Keywords

Transport-properties, Porous materials, Conduction, Catalysts, Behavior, Copper, Zinc

URI

https://hdl.handle.net/11511/67591

Journal

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE

DOI

https://doi.org/10.1007/s11663-000-0021-3

Collections

Department of Metallurgical and Materials Engineering, Article

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Citation Formats

C. Jee, N. Ozguven, Z. Guo, and J. Evans, “Preparation of high porosity metal foams,” METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, pp. 1345–1352, 2000, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/67591.