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Article
Recent progress in understanding high temperature dynamical properties and fragility in metallic liquids, and their connection with atomic structure
The advent of containerless processing techniques has opened the possibility of high quality measurements of equilibrium and metastable liquids. This review focuses on the structure and dynamics of metallic li...
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Article
Undercooling And X-Ray Structural Studies Of Ti-Zr-Ni Liquids
Maximum undercooling results for the icosahedral phase (i-phase), polytetrahedral C14 Laves phase, and solid solution phases are presented as a function of composition in Ti-Zr-Ni liquids. Containerless proces...
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Article
Phase Diagram and Electrostatic Levitation Undercooling Studies of Polytetrahedral Phases in Ti−Fe−Si−O and Ti−Zr−Ni Alloys
New information on the phase diagrams of Ti-Fe-Si-O and Ti-Zr-Ni alloys near the quasicrystal and rational approximant compositions is presented. α(TiFeSiO), the 1/1 rational approximant, is shown to form in a...
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Article
Crystallization of Al-Gd-La-Ni Metallic Glasses
The crystallization kinetics of Al-Gd-La-Ni metallic glasses to nanostructured phases are analyzed using differential scanning calorimetry and transmission electron microscopy. In a narrow alloy composition ra...
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Article
CO2 decomposition kinetics of YBa2Cu3O7−x via in situ electrical conductivity measurements
In situ electrical conductivity measurements were employed to study the kinetics of decomposition of YBa2Cu3O7−x in flowing 5% CO2/95% O2 atmosphere at 815 °C. Three regimes could be observed in the decay of the ...
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Article
Reduction in Wear Rate of α-Alumina and Silicon Nitride by Diffusional Surface Modification
The surface regions of α-alumina and hot pressed silicon nitride were modified by suitable alloying in order to improve their wear resistance. The surface modification in polycrystalline α-alumina was done by ...