Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1499396 | Scripta Materialia | 2012 | 4 Pages |
Abstract
NiCoMnSn porous metamagnetic shape memory alloys were successfully fabricated using solid-state replication of ammonium bicarbonate powders via sintering at 1273 K. Around 50% porosity of 300–500 μm interconnected pores was achieved. Oxygen contamination from the space holder and binder, which negatively influences the magneto-thermal coupling, was prevented using a titanium oxygen getter during sintering. The resulting porous samples demonstrate a metamagnetic response similar to the homogenized powder, offering possible utilization in magnetic refrigeration and actuation.
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Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
J.A. Monroe, J. Cruz-Perez, C. Yegin, I. Karaman, A.B. Geltmacher, R.K. Everett, R. Kainuma,