Local atomic order, electronic structure and electron transport properties of Cu-Zr metallic glasses
نویسندگان
چکیده
منابع مشابه
Atomic structure of Cu–Zr–Ti metallic glasses subjected to high temperature annealing
An influence of high temperature annealing process (before crystallization) on the atomic structure of two different as-prepared ribbon Cu–Zr–Ti metallic glasses (Cu60Zr20Ti20 and Cu55Zr16Ti29, at. %) was experimentally studied by means of differential scanning calorimetry and in situ hard X-ray diffraction. Results of our experiments prove different atomic structure and behaviour of the glasse...
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The structural behavior of rapidly quenched Cu-Zr amorphous alloys was analyzed. High energy X-ray diffraction patterns and atomic pair correlation functions exhibit monotonic changes with composition. The experimental results can be well described by a solid solution-like replacement of Cu and Zr atoms in the whole composition range. No indications are observed that would support the existence...
متن کاملFormation of Ti-Zr-Cu-Ni bulk metallic glasses
Formation of bulk metallic glass in quaternary Ti-Zr-Cu-Ni alloys by relatively slow cooling from the melt is reported. Thick strips of metallic glass were obtained by the method of metal mold casting. The glass forming ability of the quaternary alloys exceeds that of binary or ternary alloys containing the same elements due to the complexity of the system. The best glass forming alloys such as...
متن کاملSlow Atomic Motion in Zr-Ti-Cu-Ni-Be Metallic Glasses Studied by NMR
Nuclear magnetic resonance is used for the first time to detect slow atomic motion in metallic glasses, specifically, Be motion in Zr-Ti-Cu-Ni-Be bulk metallic glasses. The observations are not consistent with the vacancy-assisted and interstitial diffusion mechanisms and favor the spread-out free volume fluctuation mechanism for Be diffusion. Comparison with the results of Be diffusion measure...
متن کاملMeasurement of low-temperature transport properties of Cu-based Cu-Zr-Ti bulk metallic glass
The transport properties, including electrical resistivity , thermopower S , and thermal conductivity of bulk metallic glass alloys Cu64Zr28.5Ti7.1, Cu62.3Zr23.7Ti10, Cu60.6Zr26.9Ti12.5 and Cu58.8Zr26.2Ti15 in the temperature range 10–300 K are reported. The temperature variations of electrical resistivity in these alloys, with a negative temperature coefficient, are found to be rather weak. Th...
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ژورنال
عنوان ژورنال: Journal of Applied Physics
سال: 2014
ISSN: 0021-8979,1089-7550
DOI: 10.1063/1.4879903