THE EFFECT OF Ni REPLACEMENT WITH Ge ON THE MAGNETIC PROPERTIES OF LaNi5 ALLOY
In this paper, we present the results of the study on the magnetic properties of LaNi5-xGex (x = 0.1 - 0.5) alloys based on extending the Langevin’s classical theory of paramagnetism. The calculation results show that the number of magnetic particles decreases and the size of magnetic particles increases as the concentration of Ge in LaNi5 alloy increases. The LaNi5-xGex alloy after charge/discharge changes from paramagnetic to super paramagnetic. The calculated data is verified by making joints by the Langevin’s function according to the M-H data at room temperature, the results of matching between the theoretical line and the experimental data are over 99%. This study gives us a better understanding of the processes that occur when Ni-MH rechargeable battery is charged/discharged.
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