Combinatorial Investigation of Ferromagnetic Shape-Memory Alloys in the Ni-Mn-Al Ternary System Using a Composition Spread Technique

Olugbenga O. Famodu; Jason Hattrick-Simpers; Maria Aronova; Kao Shuo Chang; Makoto Murakami; Manfred Wuttig; Teiko Okazaki; Yasubumi Furuya; Lee A. Knauss; Leonid A. Bendersky; Frank S. Biancaniello; Ichiro Takeuchi

doi:10.2320/matertrans.45.173

Combinatorial Investigation of Ferromagnetic Shape-Memory Alloys in the Ni-Mn-Al Ternary System Using a Composition Spread Technique

Olugbenga O. Famodu, Jason Hattrick-Simpers, Maria Aronova, Kao Shuo Chang, Makoto Murakami, Manfred Wuttig, Teiko Okazaki, Yasubumi Furuya, Lee A. Knauss, Leonid A. Bendersky, Frank S. Biancaniello, Ichiro Takeuchi

Research output: Contribution to journal › Article › peer-review

28 Citations (Scopus)

Abstract

Using a thin-film composition spread technique, we have mapped the phase diagram of the Ni-Mn-Al ternary system in search of ferromagnetic shape-memory alloys (FMSA). A characterization technique that allows detection of martensitic transitions by visual inspection using micromachined cantilever arrays was combined with quantitative magnetization mapping using scanning superconducting quantum interference device (SQUID) microscopy. A large compositional region in the Al deficient part of the phase diagram was found to be ferromagnetic and reversibly martensitic at room temperature. In addition, in the Al rich region, a new compositional range that displays marked ferromagnetism was found.

Original language	English
Pages (from-to)	173-177
Number of pages	5
Journal	Materials Transactions
Volume	45
Issue number	2
DOIs	https://doi.org/10.2320/matertrans.45.173
Publication status	Published - 2004 Feb
Externally published	Yes

Keywords

Combinatorial
Composition spreads
Ferromagnetic shape-memory alloys
Magnetization
Martensitic transitions
NiMnAl
Phase diagram
Quantitative magnetization mapping
Scanning superconducting quantum interference device (SQUID) microscopy
Thin-film

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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Famodu, O. O., Hattrick-Simpers, J., Aronova, M., Chang, K. S., Murakami, M., Wuttig, M., Okazaki, T., Furuya, Y., Knauss, L. A., Bendersky, L. A., Biancaniello, F. S., & Takeuchi, I. (2004). Combinatorial Investigation of Ferromagnetic Shape-Memory Alloys in the Ni-Mn-Al Ternary System Using a Composition Spread Technique. Materials Transactions, 45(2), 173-177. https://doi.org/10.2320/matertrans.45.173

Famodu, OO, Hattrick-Simpers, J, Aronova, M, Chang, KS, Murakami, M, Wuttig, M, Okazaki, T, Furuya, Y, Knauss, LA, Bendersky, LA, Biancaniello, FS & Takeuchi, I 2004, 'Combinatorial Investigation of Ferromagnetic Shape-Memory Alloys in the Ni-Mn-Al Ternary System Using a Composition Spread Technique', Materials Transactions, vol. 45, no. 2, pp. 173-177. https://doi.org/10.2320/matertrans.45.173

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abstract = "Using a thin-film composition spread technique, we have mapped the phase diagram of the Ni-Mn-Al ternary system in search of ferromagnetic shape-memory alloys (FMSA). A characterization technique that allows detection of martensitic transitions by visual inspection using micromachined cantilever arrays was combined with quantitative magnetization mapping using scanning superconducting quantum interference device (SQUID) microscopy. A large compositional region in the Al deficient part of the phase diagram was found to be ferromagnetic and reversibly martensitic at room temperature. In addition, in the Al rich region, a new compositional range that displays marked ferromagnetism was found.",

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Combinatorial Investigation of Ferromagnetic Shape-Memory Alloys in the Ni-Mn-Al Ternary System Using a Composition Spread Technique

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