Table 1. Curie temperature (T C ), change in magnetic entropy (ΔS M ), relative cooling power (RCP) and cost for selected magnetocaloric materials.
| Nominal Composition | TC (K) | ∆SM (J-kg−1K−1) (μoH = 5T) | RCP (J-kg−1) (μoH = 5T) | Cost per 100 gm ($) | Ref. |
|---|---|---|---|---|---|
| (Fe70Ni30)99Cr1 | 398 | 1.58 | 548 | 7.6 | This work |
| (Fe70Ni30)97Cr3 | 323 | 1.49 | 436 | 8.1 | This work |
| (Fe70Ni30)95Cr5 | 258 | 1.45 | 406 | 8.6 | This work |
| (Fe70Ni30)94Cr6 | 245 | 1.22 | 366 | 8.8 | This work |
| (Fe70Ni30)93Cr7 | 215 | 1.11 | 306 | 9.1 | This work |
| NiFeCoCrPd0.25 (as rolled/annealed) | ~210 | 0.9/0.82 | 170/150 | 1526 | 17 |
| NiFeCoCrPd0.50 (as rolled/annealed) | ~290 | 0.87/0.83 | — | 2984 | 17 |
| (Fe70Ni30)95Mn5 | 338 | 1.45 | 470 | 7.3 | 31 |
| (Fe70Ni30)92Mn8 | 340 | 1.67 | 466 | 7.3 | 5 |
| (Fe70Ni30)89 Zr7B4 | 353 | 2.8 | 330 | 62.1 | 18 |
| (Fe70Ni30)89B11 | 381 | 2.1 | 640 | 129 | 13 |
| (Fe70Ni30)96Mo4 | 300 | 1.67 | 432 | 8.3 | 21 |
| Gd | 295 | 7.2 | ~400 | 450 | 49 |
| Gd5Ge1.9Si2Fe0.1 | 300 | 7.1 | 630 | 409.4 | 56 |
The cost of the materials was calculated using pure element cost.