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  1. No Access

    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...

    A. K. Gangopadhyay, K. F. Kelton in Journal of Materials Research (2017)

  2. No Access

    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...

    G. W. Lee, A. K. Gangopadhyay, K. F. Kelton, R. W. Hyers… in MRS Online Proceedings Library (2003)

  3. No Access

    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...

    T. K. Croat, J. P. Davis, A. K. Gangopadhyay… in MRS Online Proceedings Library (2001)

  4. No Access

    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...

    T. K. Croat, A. K. Gangopadhyay, K. F. Kelton in MRS Online Proceedings Library (1999)

  5. No Access

    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 ...

    E. A. Cooper, A. K. Gangopadhyay, T. O. Mason… in Journal of Materials Research (1991)

  6. No Access

    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 ...

    A. K. Gangopadhyay, M. E. Fine, H. S. Cheng in MRS Online Proceedings Library (1988)

  7. No Access

    Article

    Assessment of wear mechanisms in grinding media

    The effect of grinding media composition, mineral type, and slurry environment on the wear rate of various grinding media (balls) are discussed. Sufficient wear data have been obtained and correlated. Modes of...

    A. K. Gangopadhyay, J. J. Moore in Mining, Metallurgy & Exploration (1985)