Anisotropic mechanical properties of nickel foams fabricated by powder metallurgy

Yamada, Yasuo, Banno, Takumi, Li, Yuncang and Wen, Cui'e 2008, Anisotropic mechanical properties of nickel foams fabricated by powder metallurgy, Materials science forum, vol. 569, pp. 277-280, doi: 10.4028/

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Title Anisotropic mechanical properties of nickel foams fabricated by powder metallurgy
Author(s) Yamada, Yasuo
Banno, Takumi
Li, Yuncang
Wen, Cui'e
Journal name Materials science forum
Volume number 569
Start page 277
End page 280
Total pages 4
Publisher Trans Tech Publications
Place of publication Aedermannsdorf, Switzerland
Publication date 2008
ISSN 0255-5476
Keyword(s) nickel foams
aspect ratio
mechanical properties
anisotropic properties
Summary In the present study, porous nickel foam samples with pore sizes of 20 μm and 150 μm and porosities of 60 % and 70 % were fabricated by the space-holding sintering method via powder metallurgy. Electron scanning microscopy (SEM) and Image-Pro Plus were used to characterise the morphological features of the porous nickel foam samples. The anisotropic mechanical properties of porous nickel foams were investigated by compressive testing loading in different directions, i.e. the major pore axis and minor pore axis. Results indicated that the nominal stress of the nickel foam samples increases with the decreasing of the porosity. Moreover, the foam sample exhibited significantly higher nominal stress for loading in the direction of the major pore axis than loading in direction of the minor pore axis. It is also noticeable that the nominal stress of the nickel foams increases with the decreasing of the pore size. It seems that the deformation behaviour of the foams with a pore size in the micron-order differs from those with a macro-porous structure.
Language eng
DOI 10.4028/
Field of Research 091207 Metals and Alloy Materials
Socio Economic Objective 861206 Structural Metal Products
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2008, Trans Tech Publications
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Document type: Journal Article
Collection: Centre for Material and Fibre Innovation
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