Interpretation of the magnetization mechanism in Terfenol‐D using Barkhausen pulse‐height analysis and irreversible magnetostrictionJournal of Applied Physics
AbstractThe ternary alloy Dy0.7Tb0.3Fe1.9, known as Terfenol‐D, is a highly magnetostrictive alloy with magnetostriction coefficients along the principal crystallographic directions of λ1 1 1=1640×10−6and λ1 0 0≤100(±30)×10−6. The bulk magnetostriction λ is dependent on the state of magnetization M, on the original domain configuration, and on the texture of the material. This paper reports on Barkhausen measurements and magnetostriction. The pulse‐height distribution of Barkhausen emissions revealed events occurring at a specific amplitude which were stress dependent. The magnetostriction results gave a saturationmagnetostriction in excess of 2000 μ strain.
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Citation InformationDavid C. Jiles and S. Hariharan. "Interpretation of the magnetization mechanism in Terfenol‐D using Barkhausen pulse‐height analysis and irreversible magnetostriction" Journal of Applied Physics Vol. 67 Iss. 9 (1990) p. 5013 - 5015
Available at: http://works.bepress.com/david_jiles/131/