Fabrication, properties and application of porous metals with directional pores

http://plaza.ufl.edu/stefanek/images/pubs/steel_foam.pdf

Steel foam for structures: A review of applications, manufacturing and material properties

A review on nickel-free nitrogen containing austenitic stainless steels for biomedical applications

Metallic Functionally Graded Materials: A Specific Class of Advanced Composites

Lotus-type porous stainless steel (SUS304L) rods were fabricated by the continuous zone melting technique under a pressurized mixed gas of hydrogen and inert gas such as argon or helium. Pores with cylindrical shape, whose growth direction is parallel to the solidification direction, are observed in the rods. The dependence of the porosity and averaged pore diameter on the partial pressure of hydrogen or the total pressure and on the transference velocity of rods was investigated. It was found that the porosity increases with increasing partial pressure of hydrogen under a constant total pressure and the pore diameter decreases with increasing transference velocity. The maximum porosity was about 60 pct under the experimental conditions in the present work. The observation of the microstructure and the measurement of the tensile strength were also carried out.

Fabrication of lotus-type porous stainless steel by continuous zone melting technique and mechanical property

Lotus-type porous brass has been fabricated by utilizing solid-state diffusion of zinc into porous copper which has been made by unidirectional solifdification in pressurized hydrogen gas. The Zn diffusion has been carried out by thermal annealing of the porous copper. Zn was deposited by electroplating or vapor deposition method. It has been shown that the diffusion method is a very efficient way to synthesize the lotus-type porous alloys with a suitable composition.

Takeshi Aoki

Papers

Fabrication of lotus-type porous stainless steel by continuous zone melting technique and mechanical property

Fabrication of Lotus-Type Porous Brass by Zinc Diffusion into Porous Copper

Fabrication of lotus-type porous brass by zinc diffusion into porous copper : Diffusion in materials and its application: Recent development

Fabrication of Lotus-type Porous Stainless Steel by Continuous Zone Melting Technique