Structure and crystallization of the partially crystalline Zr76Ni24 metallic glass

Effect of disorder on the electrical resistivity in the partially crystalline Zr76Ni24 metallic glasses

“…The XRD patterns for different heat-treated samples are given in Ref. [17]. The samples were subjected to heating rates of 60 and 10 K/min in separate runs from 298 K to slightly below and to slightly above the first crystallization exotherm; then the heating was stopped and the sample cooled quickly to 298 K. XRD measurements performed at room temperature show no significant changes on the XRD pattern upon annealing of the partially crystalline and amorphous Zr 76 Ni 24 metallic glasses up to 593 K with the heating rate of 10 K/min.…”

“…This interphase region or two-phase region was composed of the orthorhombic Zr 3 Ni nanocrystalline grains embedded in the amorphous matrix. The average crystallite sizes of the orthorhombic Zr 3 Ni nanocrystalline phase were from 10 to 30 nm and the crystallite sizes decrease with increasing annealing temperature up to slightly below the first crystallisation exotherm [17].…”

“…Recently results showed that, according to X-ray diffraction (XRD) results, two sides of quenched ribbons of the partially crystalline Zr 76 Ni 24 metallic glass have revealed different structures [17] (that in contact with the wheel-the dark side of the ribbon is called DSR and that in contact with the inert atmosphere-shiny side of the ribbon is called SSR). The diffraction pattern of the DSR shows a broad maximum centred at 2α = 36.1 • of β = 4.2 • corresponding to an amorphous phase.…”

“…The XRD patterns of both side of the partially crystalline Zr 76 Ni 24 metallic glass are shown in Ref. [17] and Figs. 1 and 2.…”

Relaxation in Metallic Glass Ni36.5Zr63.5

“…Metallic glass possesses a frozen-in structural disorder. An amorphous sample is metastable in two ways, in respect to the so-called ideal amorphous state and also to its crystalline state [2]. During annealing it relaxes structurally.…”