| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1616031 | Journal of Alloys and Compounds | 2012 | 6 Pages |
The crystal structures, spontaneous magnetic moment, Is, and the Curie temperature, TC, of Fe2CrAl and Fe2CrGa Heusler alloys were investigated. Single phases of A2, B2 and L21-type structures were obtainable in Fe2CrAl alloy by controlling the annealing temperature. The values of the Is and TC of the A2-type phase were 2.2 μB/f.u. and 316 K and those of the B2-type phase were 2.0 μB/f.u. and 274 K, larger than those of the L21-type phase of 1.6 μB/f.u. and 210 K, respectively. A single phase of the A2-type phase in Fe2CrGa alloy was obtained and the Is and TC were about 2.8 μB/f.u. and 353 K, respectively. The B2 or L21-type single phases of Fe2CrGa alloy could not be obtained because of the inevitable precipitants.
► We systematically examine the annealing effects on magnetism of Fe2CrAl. ► The magnetism of Fe2CrAl is sensitive to the degree of order. ► Order–disorder phase transition temperature of Fe2CrAl and Fe2CrGa are investigated. ► Fe2CrGa exhibits two phase state in lower temperature region.
