THE BOUNDS OF SATURATION MAGNETOSTRICTION IN POLYCRYSTALLINE MATERIALS

Authors
Citation
M. Birsan, THE BOUNDS OF SATURATION MAGNETOSTRICTION IN POLYCRYSTALLINE MATERIALS, Journal of applied physics, 82(12), 1997, pp. 6138-6141
Citations number
17
Journal title
ISSN journal
00218979
Volume
82
Issue
12
Year of publication
1997
Pages
6138 - 6141
Database
ISI
SICI code
0021-8979(1997)82:12<6138:TBOSMI>2.0.ZU;2-T
Abstract
The universally used approximation for the magnetostriction constant o f a polycrystalline material is based on the assumption of uniform str ess through the aggregate. In this article we calculate the alternativ e approximation of uniform strain. The calculation is performed in ter ms of the grains orientation distribution (texture) function, and sing le crystal constants describing the elastic and magnetostrictive aniso tropy. These bounds represent the optimum solution of the incompletely specified problem of crystallites shape distribution in a polycrystal line aggregate. The available experimental data are compared with the two approximations. (C) 1997 American Institute of Physics.