Temperature dependence of electrical resistivity and phase transformation studies of amorphous Fe76Nd4B20 alloy
B. Bhanu Prasad
amorphous ferromagnetic alloys, hard ferromagnets, thermal stability, temperature coefficient of resistivity, debye temperature
The temperature dependence of electrical resistivity and phase transformation studies of amorphous Fe76Nd4B20 alloy have been done in the temperature range 300 K - 950 K. From the resistivity measurements, the resistivity of the amorphous Fe76Nd4B20 alloy at 300 K, ρ(300) is found to be 186 µΩ-cm. The Curie Temperature (TC), the first step of crystallization (TX1) and the second step of crystallization (TX2) of the amorphous sample are found to be 600 K, 800 K and 910 K, respectively. The temperature coefficient of resistivity (TCR), α and the Debye temperarure (ϴD) of the amorphous sample are found to be 8.065 X 10-4 K-1 and 408 K, respectively. The results are compared with those of the published other similar systems and discussed to understand the crystallization behavior and thermal stability of amorphous Fe76Nd4B20 alloy.