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Materials 2012, 5(7), 1267-1274; doi:10.3390/ma5071267
Article

Effect of Elemental Powder Size on Foaming Behavior of NiTi Alloy Made by Combustion Synthesis

* ,
 and
Graduate School of Engineering, Nagoya University, 1 Furo-cho, Chikusa-ku, Nagoya, Aichi 4648603, Japan
* Author to whom correspondence should be addressed.
Received: 6 April 2012 / Revised: 18 July 2012 / Accepted: 19 July 2012 / Published: 23 July 2012
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Abstract

Nickel titanium (NiTi) foams were made by combustion synthesis of powders with the help of ZrH2 as foaming agent and TiB2 as endothermic agent. In this paper, we investigated the effect of elemental powder size on the foaming. The powder size of Ni and Ti affected the ignition temperature of the combustion reaction, cell morphology and microstructure of the foams. The cell morphology of the foams was also modified by the powder size of TiB2.
Keywords: intermetallic foam; porous material; combustion synthesis; nickel titanium; foaming agent intermetallic foam; porous material; combustion synthesis; nickel titanium; foaming agent
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Arakawa, Y.; Kobashi, M.; Kanetake, N. Effect of Elemental Powder Size on Foaming Behavior of NiTi Alloy Made by Combustion Synthesis. Materials 2012, 5, 1267-1274.

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