Open-celled porous Cu prepared by replication of a new space-holder

Wang, Q.Z.; Liu, W.J.; Lu, Dongmei; Cui, Chunxiang

doi:10.1016/j.matlet.2014.11.152

Cited by 5 publications

(2 citation statements)

References 17 publications

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“…Nevertheless, the pore structures are difficult to be well controlled due to the fast speed of SHS process. Space-holder method is a very promising route of preparing open-celled porous materials [21][22][23]. The most outstanding technical advantage of this method is much wider range of structure parameters, thus providing more opportunities for resultant porous materials to meet the desired behaviors [21,24].…”

Section: Introductionmentioning

confidence: 99%

“…Space-holder method is a very promising route of preparing open-celled porous materials [21][22][23]. The most outstanding technical advantage of this method is much wider range of structure parameters, thus providing more opportunities for resultant porous materials to meet the desired behaviors [21,24]. Therefore, porous NiAl and NiAl matrix composites with adjustable pore structures can be successfully fabricated by the combination of SHS and space-holder technology.…”

Section: Introductionmentioning

confidence: 99%

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Fabrication, Pore Structures and Mechanical Properties of (TiB2–Al2O3)/NiAl Porous Composites

Yang

Cui

et al. 2017

Acta Metall. Sin. (Engl. Lett.)

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Open-celled porous (TiB 2 -Al 2 O 3 )/NiAl composites were successfully fabricated by using spherical carbamide as space holders via self-propagating high-temperature synthesis (SHS). Effects of 10Al-3B 2 O 3 -3TiO 2 contents (0-20 wt%) on the pore structures and the quasi-static compressive behaviors of the resultant materials were investigated. The porous (TiB 2 -Al 2 O 3 )/NiAl composites exhibit composite pore structure consisting of homogeneously distributed and interconnected millimeter pores and micropores. The millimeter pores virtually inherit the shape and size of carbamide particles, while the pore size of micropores increases with increasing the 10Al-3B 2 O 3 -3TiO 2 content. Depending on the volume fraction of the carbamide, the porosity of the porous materials can be easily controlled in a range of 55%-85%. When the porosity is about 72%, the compressive strengths of porous NiAl and porous (TiB 2 -Al 2 O 3 )/NiAl composite with 15% 10Al-3B 2 O 3 -3TiO 2 in green compact are 19 and 32 MPa, and the corresponding strains are 2.9% and 5.7%, respectively. Furthermore, the quasi-static compressive behavior of porous (TiB 2 -Al 2 O 3 )/NiAl composites can be estimated by Gibson-Ashby model.

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