| Full text | |
| Author(s): |
Bormio-Nunes, C.
[1]
;
Belarmino, A. R.
[1]
;
Santos, C. T.
[1]
;
Ugeda, V. C.
[1]
;
Baldan, C. A.
[1]
;
Ghivelder, L.
[2]
Total Authors: 6
|
| Affiliation: | [1] Univ Sao Paulo, Escola Engn Mat, BR-12602810 Sao Paulo - Brazil
[2] Univ Fed Rio de Janeiro, Inst Fis, BR-21941972 Rio De Janeiro - Brazil
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | JOURNAL OF PHYSICS D-APPLIED PHYSICS; v. 42, n. 16 AUG 21 2009. |
| Web of Science Citations: | 2 |
| Abstract | |
Fe(100-x)Ti(x) alloys (x = 10, 15, 20) were studied with respect to their microstructure and magnetostriction. Depending on heat treatment temperature and composition, the sample retained either the alpha-phase (A2 structure) or the alpha-phase plus the TiFe(2) Laves phase (C14 structure). The saturation magnetostriction measured at 238K is negative, about -11 ppm. However, for fields up to 0.4 T the magnetostriction is barely zero, a very interesting result. High values of magnetostriction are of interest for applications mainly in sensors and actuators, but zero magnetostriction is also a remarkable property, desirable for many applications such as electric transformers and fluxgate sensor cores. Therefore, the Fe(100-x)Ti(x) (x < 20 at%) are an attractive option to be considered for these applications. (AU) | |