Magnetic susceptibility of the $\mathrm{Al}$-$\mathrm{Ni}$-$\mathrm{REM}$ and $\mathrm{Al}$-$\mathrm{Ni}$-$\mathrm{Co}$-$\mathrm{REM}$ alloys

The results of measurement of the magnetic susceptibility of the $\mathrm{Al_{86}Ni_8La_6}$, $\mathrm{Al_{86}Ni_8Ce_6}$, $\mathrm{Al_{87}Ni_8Y_5}$, $\mathrm{Al_{86}Ni_6Co_2Gd_4Y_2}$, and $\mathrm{Al_{86}Ni_6Co_2Gd_4Tb_2}$ alloys in a wide temperature range ($T=290$–$1900$ K) are presented. The effect of the time exposure at different temperatures on the studied property has been investigated. Results have been discussed under the assumption about the existence of microinclusions of $\mathrm{Al_2REM}$ associates in these alloys.