Characterization of giant magnetostrictive composite materials prepared under a magnetic field

Mitsuaki Takeuchi; Yoshihito Matsumura; Hirohisa Uchida; Masakazu Fujita; Toshiro Kuji

doi:10.1117/12.469174

13 November 2002 Characterization of giant magnetostrictive composite materials prepared under magnetic field

Mitsuaki Takeuchi, Yoshihito Matsumura, Hirohisa Uchida, Masakazu Fujita, Toshiro Kuji

Proceedings Volume 4934, Smart Materials II; (2002) https://doi.org/10.1117/12.469174
Event: SPIE's International Symposium on Smart Materials, Nano-, and Micro- Smart Systems, 2002, Melbourne, Australia

Abstract

Giant magnetostrictive (GM) composite materials with high corrosion resistance and high electrical resistivity were developed. Magnetostriction of the composite material prepared under magnetic field at 19 kOe was about 880 ppm, and the TbFe₂ particle size in the sample was 100-150 μm. Shape anisotropy of the TbFe₂ particles induced by compression and magnetic field caused to increase the magnetization and magnetostriction measured for y axis of the composite samples formed with magnetic field. The composite materials showed high resistivity in order to 10^-2 Ωm and exhibited in order to 10^-2g hour^-1 of corrosion rate. The corrosion rate of the composite samples increased with increasing TbFe₂ particle size. The corrosion rate of the composite materials may be affected to volume fraction of the TbFe₂ particles exposed area in surface of the composite materials.

Citation Download Citation

Mitsuaki Takeuchi, Yoshihito Matsumura, Hirohisa Uchida, Masakazu Fujita, and Toshiro Kuji "Characterization of giant magnetostrictive composite materials prepared under magnetic field", Proc. SPIE 4934, Smart Materials II, (13 November 2002); https://doi.org/10.1117/12.469174

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available