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High Precision Actuator with Tb0.27Dy0.73Fe1.95 Single Crystal

Published online by Cambridge University Press:  16 February 2011

Qiang Li ,
Y.L. Chang ,
Shixi Ouyang  and
X.H. Huang
Qiang Li
Affiliation:
Wuhan University of Technology, Advanced Materials Research Institute, Wuhan, Hubei 430070, China
Y.L. Chang
Affiliation:
Wuhan University of Technology, Advanced Materials Research Institute, Wuhan, Hubei 430070, China
Shixi Ouyang
Affiliation:
Wuhan University of Technology, Advanced Materials Research Institute, Wuhan, Hubei 430070, China
X.H. Huang
Affiliation:
Wuhan University of Technology, Advanced Materials Research Institute, Wuhan, Hubei 430070, China
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Abstract

It has been proved that the saturation magnetostrictive constant λs of Tb0.2 7Dy0.73Fe1.95 single crystal is greater than the polycrystal and grains oriented crystal with the terfenol compositions, especially for its large linear magnetostrictive strain. Th0.27Dy0.73Fel.95 single crystal also can produce large force and fast, precision motion at high efficiency and power levels. A proto-type micro positioning actuator with the single crystal was designed inour lab. The structure and performances are discussed in this paper.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 360 , 1994 , 243
Copyright
Copyright © Materials Research Society 1995

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References

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