Table 1 The martensitic start temperature (Ms), martensitic finish temperature (Mf), austenitic start temperature (As), austenitic finish temperature (Af), transformation width (W) in heating/cooling process, magnetization difference (ΔM), rate (R) of the temperature shift by magnetic field in the cooling process and entropy change of complete transformation (L) for the bulk, powder and composites.

From: Magnetostructural transformation and magnetocaloric effect of Sn-bonded Mn0.66Fe0.34Ni0.66Fe0.34Si0.66Ge0.34 composite

 

Ms (K)

Mf (K)

As (K)

Af (K)

W(K) Cooling/Heating

ΔM (Am2/kg)

R (K/T)

L (J·kg−1·K−1)

bulk

291.39

285.03

304.62

310.21

6.36/5.59

77.98

0.77

62.36

powder

295.72

278.69

303.74

313.71

17.03/9.97

61.10

1.61

47.53

S31

297.78

282.93

306.09

316.38

14.85/10.29

43.49

1.36

31.53

S21

296.76

282.36

305.77

316.07

14.40/10.30

38.19

1.37

27.72

S11

297.86

283.38

306.97

316.38

14.48/9.41

28.98

1.43

21.88