The magnetostriction of CoFeNiMo metallic glasses measured with a tunneling transducer

The longitudinal magnetostriction as a function of the Co/Fe content of the metallic glass series Co 72− x Fe x Ni 3 Mo 1Si 12B 12, for 0 ≤ x ≤ 10, is reported. The measurement is performed using a novel technique, based on electron tunneling, which provides a highly sensitive, noncontact, quasi-dc...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 1992, Vol.103 (1), p.111-116
Main Authors: Brizzolara, Robert A., Colton, Richard J.
Format: Article
Language:English
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Summary:The longitudinal magnetostriction as a function of the Co/Fe content of the metallic glass series Co 72− x Fe x Ni 3 Mo 1Si 12B 12, for 0 ≤ x ≤ 10, is reported. The measurement is performed using a novel technique, based on electron tunneling, which provides a highly sensitive, noncontact, quasi-dc and direct measurement of magnetostrictive strains. The minimum value of the longitudinal magnetostriction measured is (−1.65±0.24) ppm for 0% Fe, and the maximum (in this composition range) is (2.51±0.15) ppm for 10% Fe, with a zero-magnetostriction composition of 5.25% Fe. These data are compared to those previously reported for a similar metallic glass series, but with higher Mo content. Increasing the Mo content in these glasses is shown to decrease the Fe content at the zero-magnetostriction composition point.
ISSN:0304-8853
DOI:10.1016/0304-8853(92)90243-H