TEM studies on the microstructure in ferromagnetic shape memory alloys

Yasukazu Murakami, T. Yano, D. Shindo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The magnetic domain structures of the cubic parent phase (high-temperature phase) in ferromagnetic shape memory alloys (SMAs) have been studied by electron holography. In a Ni51Fe22Ga17 alloy, the magnetic flux distribution in the parent phase changes dramatically before the onset of martensitic transformation. In contrast, a Ni45Co 5Mn36.7In13.3 alloy - a recently developed ferromagnetic SMA - does not show appreciable changes in the magnetic domain structure upon cooling. The anomaly observed in the Ni51Fe 22Ga17 alloy appears to be due to lattice distortions, which become more pronounced as the temperature approaches the martensitic transformation start temperature, Ms.

Original languageEnglish
Title of host publicationMulti-functional Materials and Structures - International Conference on Multifunctional Materials and Structures
PublisherTrans Tech Publications
Pages515-518
Number of pages4
Volume47-50 PART 1
ISBN (Print)0878493786, 9780878493784
Publication statusPublished - 2008
Externally publishedYes
EventMulti-functional Materials and Structures - International Conference on Multifunctional Materials and Structures - Hong Kong, P.R., China
Duration: Jul 28 2008Jul 31 2008

Publication series

NameAdvanced Materials Research
Volume47-50 PART 1
ISSN (Print)10226680

Other

OtherMulti-functional Materials and Structures - International Conference on Multifunctional Materials and Structures
CountryChina
CityHong Kong, P.R.
Period7/28/087/31/08

Fingerprint

Shape memory effect
Magnetic domains
Martensitic transformations
Transmission electron microscopy
Microstructure
Electron holography
Magnetic flux
Temperature
Cooling

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Murakami, Y., Yano, T., & Shindo, D. (2008). TEM studies on the microstructure in ferromagnetic shape memory alloys. In Multi-functional Materials and Structures - International Conference on Multifunctional Materials and Structures (Vol. 47-50 PART 1, pp. 515-518). (Advanced Materials Research; Vol. 47-50 PART 1). Trans Tech Publications.

TEM studies on the microstructure in ferromagnetic shape memory alloys. / Murakami, Yasukazu; Yano, T.; Shindo, D.

Multi-functional Materials and Structures - International Conference on Multifunctional Materials and Structures. Vol. 47-50 PART 1 Trans Tech Publications, 2008. p. 515-518 (Advanced Materials Research; Vol. 47-50 PART 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Murakami, Y, Yano, T & Shindo, D 2008, TEM studies on the microstructure in ferromagnetic shape memory alloys. in Multi-functional Materials and Structures - International Conference on Multifunctional Materials and Structures. vol. 47-50 PART 1, Advanced Materials Research, vol. 47-50 PART 1, Trans Tech Publications, pp. 515-518, Multi-functional Materials and Structures - International Conference on Multifunctional Materials and Structures, Hong Kong, P.R., China, 7/28/08.
Murakami Y, Yano T, Shindo D. TEM studies on the microstructure in ferromagnetic shape memory alloys. In Multi-functional Materials and Structures - International Conference on Multifunctional Materials and Structures. Vol. 47-50 PART 1. Trans Tech Publications. 2008. p. 515-518. (Advanced Materials Research).
Murakami, Yasukazu ; Yano, T. ; Shindo, D. / TEM studies on the microstructure in ferromagnetic shape memory alloys. Multi-functional Materials and Structures - International Conference on Multifunctional Materials and Structures. Vol. 47-50 PART 1 Trans Tech Publications, 2008. pp. 515-518 (Advanced Materials Research).
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