Production of Metallic Foams Having Open Porosity Using a Powder Metallurgy Approach

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DOIResolve DOI: http://doi.org/10.1081/AMP-200030539
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TypeArticle
Journal titleMaterials and Manufacturing Processes
Volume19
Issue5
Pages793811; # of pages: 19
SubjectMetallic foam; Porous metal; Ni; Powder metallurgy; Porosity; Surface area; Mechanical properties
AbstractA technique has been recently developed to produce foamed metallic structures from dry powder blends containing a metallic powder, a polymeric binder, and a foaming agent. The blend is molded and heat-treated to foam and consolidate the material. The final properties may be tailored by varying the sintering temperature. Microstructure, chemical composition, and properties of nickel (Ni) foams sintered at different temperature are presented and discussed. The resulting material has an open cell microstructure with three levels of porosity. This structure leads to materials having low density ( 90% porosity) and high specific surface area. The specific surface area is reduced and the mechanical strength is increased when the sintering temperature increases.
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LanguageEnglish
AffiliationNRC Industrial Materials Institute; National Research Council Canada
Peer reviewedYes
NRC number44560
NPARC number18476846
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Record identifier519b1d8c-7fd3-4817-8393-05b80edbd80a
Record created2011-10-11
Record modified2016-05-09
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