MAGNETOSTRICTION CONSTANTS FOR FE-AL-SI (SENDUST) SINGLE CRYSTALS WITH DO//3 ORDERED STRUCTURE.

M. Takahashi, H. Arai, T. Wakiyama

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

The magnetostriction constants, lambda //1//0//0 and lambda //1//1//1 of the Sendust alloys (7 approximately equals 11 wt%Si, 4 approximately equals 7wt%Al, bal. Fe) minus 196 degree C and 120 degree C by means of the strain gauge method. For the central composition of Sendust alloy (9. 6wt%Si, 5. 7wt% Al, bal. Fe), the sign of lambda //1//0//0 is positive at minus 196 degree C and the magnitude of lambda //0//0 ios fairly large (1. 3 multiplied by 10** minus **5). With increasing temperature, the magnitude of lambda //1//0//0 becomes gradually smaller and crosses zero room temperature. With further increasing temperature, lambda //1//0//0 again increases ( minus 2 multiplied by 10** minus **6 at 120 degree C). While in the case of the lambda //1//1//1, no sign change of lambda //1//1//1 took place and the magnitude of lambda //1//1//1 is nearly constant (e. g. -1 multiplied by 10** minus **6 for the central composition of Sendust alloy) in this temperature range for most of the alloys examined. The composition at which lambda //1//0//0 becomes zero is strongly temperature dependent.

Original languageEnglish
Pages (from-to)3523-3525
Number of pages3
JournalIEEE Transactions on Magnetics
VolumeMAG-23
Issue number5
Publication statusPublished - 1987 Sep

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Physics and Astronomy (miscellaneous)

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