Improvement of magnetic properties by addition of tin to amorphous FeSiB alloys with high iron contents
✍ Scribed by Masahiro Fujikura; Toshio Yamada; Takashi Sato
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 295 KB
- Volume
- 181-182
- Category
- Article
- ISSN
- 0921-5093
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✦ Synopsis
Increasing the iron content effectively enhances the saturation magnetic induction, while introducing the disadvantages of being subject to crystallization because of reduced glass forming ability. For the purpose of suppressing the crystallization and avoiding a degradation in core losses, the effects of adding tin are studied. The tin additives proved to restrain the crystallization, as expected. As a result, the high saturation induction and the low core losses can be achieved simultaneously. Surface analysis suggested that the suppression of the surface crystallization is the result of the solute silicon being maintained at high concentrations in the surface layers. The mechanism is similar to the case of the iron-base amorphous alloys containing aluminum as an impurity.