Calorimetric and structural analysis of the new phase Al33Ni16Zr51 produced by direct synthesis and mechanical alloying |
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Authors: | O. Held J. P. Braganti F. A. Kuhnast |
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Abstract: | A new phase has been synthesized in the ternary phase diagram Al–Ni–Zr: its nominal composition is Al33Ni16Zr51. For the Al33Ni16Zr51 compound obtained by mixing the three components in suitable proportions, a study has been carried out by direct synthesis (calorimetry) and mechanical alloying in our laboratory. With the first method we know directly the enthalpy of formation of this alloy. For the amorphous alloys prepared by mechanical alloying we can determine the crystallisation enthalpy with the differential scanning calorimetry (DSC) method. So it is possible to determine a fundamental piece of information: the amorphous alloy formation enthalpy. |
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Keywords: | Direct synthesis Calorimetry Mechanical alloying Amorphous alloys Crystallisation Ternary phase diagram Al– Ni– Zr |
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