A Method of Measuring Magnetostriction
- 1 January 1954
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 25 (1) , 91-95
- https://doi.org/10.1063/1.1721528
Abstract
Torsion tests are made on wires of various ferromagnetic materials. It is found that the relationship between shear stress and shear strain is different for magnetized and unmagnetized wires. The difference is explained in terms of wall movement and rotation of ferromagnetic domains, and magnetostriction values are derived from it. This method of determining magnetostriction has several advantages. It is simpler to carry out than most other methods, its accuracy is 4×10−7, and it can be used at elevated temperatures. Its main limitation is that saturation magnetostriction values are not obtainable for alloys which have a large crystal anisotropy energy.This publication has 5 references indexed in Scilit:
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