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Published November 3, 1986 | public
Journal Article Open

Calorimetric study of amorphization in planar, binary, multilayer, thin-film diffusion couples of Ni and Zr


We have utilized differential scanning calorimetry to monitor the solid-state reaction of crystalline metals to form an amorphous alloy in multilayered thin-film diffusion couples of elemental Ni and Zr. The heat of formation of amorphous Ni68Zr32 alloy from the elemental metals is measured directly and found to be 35 ± 5 kJ/mole. The kinetics of these reactions has been examined. The activation energy for interdiffusion in the amorphous phase is determined to be E=1.05±0.05 eV.

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©1986 The American Physical Society. Received 25 August 1986. This work was supported by the U.S. Department of Energy, through Contract No. De-AT03-8 1 ER10870. We thank K. M. Unruh for his contributions to our sample preparation facilities and for helpful discussions.


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