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Magnetomechanical damping in cryogenic TbDy

Show simple item record Dooley, J. en_US Good, N. en_US White, C. en_US Leland, S. en_US Fultz, B. en_US 2004-09-17T18:46:04Z 2004-09-17T18:46:04Z 2002-10-28 en_US
dc.identifier.citation Transducing Materials and Devices en_US
dc.identifier.citation Brugge, Belgium en_US
dc.identifier.clearanceno 02-2498 en_US
dc.description.abstract Vibration damping in polycrystalline TbDy alloys was studied at cryogenic temperatures. The material was prepared by cold-rolling to induce crystallographic texture, and was then heat-treated to relieve internal stress. Mechanical hysteretic losses were measured at various strains, frequencies, and loading configurations at 77 K. Some textured TbDy materials demonstrated 22.6% energy dissipation in mechanical measurements at low frequency (0.01 Hz) and a mean logarithmic decrement of 0.23 at a higher frequency (25 kHz). Ultrasonic velocities of longitudinal and shear elastic waves were measured on single and polycrystalline TbDy; little variation in ultrasonic velocities was found evenfor samples with large variation in crystallographic texture and magnetomechanical properties. en_US
dc.format.extent 2790630 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US
dc.subject.other magnetomechanical TbDy en_US
dc.title Magnetomechanical damping in cryogenic TbDy en_US

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