Mechanical Properties of Micro-Porous Metals Produced by Space-Holding Sintering

Abstract:

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Micro-porous nickel foams with an open cell structure were fabricated by the space-holding sintering. The average pore size of the micro-porous nickel specimens ranged from 30 μm to 150 μm, and the porosity ranged from 60 % to 80 %. The porous characteristics of the nickel specimens were observed using scanning electron microscopy (SEM). The mechanical properties were studied using compressive tests. For comparison, macro-porous nickel foams prepared by the chemical vapour deposition method with pore sizes of 800 μm and 1300 μm and porosity of 95 % were also presented. Results indicated that the ratio value of 6 and higher for the specimen length to cell size (L/d) is satisfying for obtaining stable compressive properties. The micro-porous nickel specimens exhibited different deformation behaviour and dramatically increased mechanical properties, compared to those of the macro-porous nickel specimens.

Info:

Periodical:

Advanced Materials Research (Volumes 29-30)

Edited by:

Deliang Zhang, Kim Pickering, Brian Gabbitas, Peng Cao, Alan Langdon, Rob Torrens and Johan Verbeek

Pages:

75-78

DOI:

10.4028/www.scientific.net/AMR.29-30.75

Citation:

T. Banno et al., "Mechanical Properties of Micro-Porous Metals Produced by Space-Holding Sintering", Advanced Materials Research, Vols. 29-30, pp. 75-78, 2007

Online since:

November 2007

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Price:

$35.00

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