Abstract
The amorphous Cu–Ni–Zr alloys were successfully synthesized by mechanical alloying mixtures of pure crystalline Cu, Ni and Zr powders with SPEX high-energy ball mill. These ranges are similar to those for amorphous alloys produced by melt-spinning techniques. The structure and thermal stability of these alloys were analyzed by X-ray diffraction and differential scanning calorimeter. Several amorphous alloy samples were found to exhibit a wide supercooled liquid region before crystallization. The temperature interval of the supercooled liquid region defined by the difference between T g and T x, i.e. Δ T x (= T g− T x), is 34 K for Cu 10Zr 60Ni 30, 48 K for Cu 20Zr 60Ni 20, 78 K for Cu 40Zr 55Ni 5, 81 K for Cu 50Zr 35Ni 15, 61 K for Cu 50Zr 40Ni 10 and 64 K for Cu 50Zr 45Ni 5.
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