Fabrication of Lotus-Type Porous Iron by Thermal Decomposition Method

Takuya Ide; Takehiro Wada; Hideo Nakajima

doi:10.4028/www.scientific.net/MSF.658.240

Paper Titles

Evaluating Durability and Burying Characteristic of PVC Pipe
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Hot Corrosion of NiCrAlY/(ZrO₂-CeO₂-Y₂O₃) Composite Coatings in NaCl-Na₂SO₄ Molten Salt
p.228

Formation of Oxide Nanotubes and Bamboo-Like Structures via Oxidation of Cu, Fe and Ni Nanowires
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Study on Bonding Performances of Air Plasma Treated FRP
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Fabrication of Lotus-Type Porous Iron by Thermal Decomposition Method
p.240

EPP (Expanded Polypropylene) Media for Treating Trace Metals from Road Runoff: Performance Risk Assessment Using Uncertainty Analysis
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Experiment on Combustion-Supporting Agent on PCI for Combustibility of Coal Powder
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Effects of Oxygen Plasma Treated Carbon Nanotube Coating Basalt Filaments
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Influence of Vanadium on Aging Characteristics of Cold Rolled Cu-Ni-Si Alloy
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HomeMaterials Science ForumMaterials Science Forum Vol. 658Fabrication of Lotus-Type Porous Iron by Thermal...

Fabrication of Lotus-Type Porous Iron by Thermal Decomposition Method

Abstract:

Lotus-type porous iron was fabricated by continuous zone melting technique through thermal decomposition of chromium nitride(Cr1.18N). Nitrogen dissolves into the molten iron through thermal decomposition of Cr1.18N. When the molten iron is solidified in one direction, insoluble nitrogen forms the directional gas pores aligned along the solidification direction. The porosity increases with increasing transfer velocity. For most of lotus metals fabricated by pressurized gas method, the porosity does not change with the transfer velocity owing to constant gas solubility in liquid and solid phase. On the other hand, the porosity of lotus metal fabricated by thermal decomposition method depends on the transfer velocity. This difference is attributed to the decomposition behavior of gas compound dependent upon the heating rate.