Search Results - "Gangopadhyay, A.K."

Erratum to “Prediction of elemental glass-transition temperatures of metals from thermophysical properties of liquids” [Journal of Non Crystalline Solids:X 2C (2019) 100016] by Gangopadhyay, A.K., Kelton, K.F.

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Recent progress in understanding high temperature dynamical properties and fragility in metallic liquids, and their connection with atomic structure by Gangopadhyay, A.K., Kelton, K.F.

“…The advent of containerless processing techniques has opened the possibility of high quality measurements of equilibrium and metastable liquids. This review…”
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Predicting metallic glass formation from properties of the high temperature liquid by Dai, R., Ashcraft, R., Gangopadhyay, A.K., Kelton, K.F.

“…Glass formation is an interesting phenomenon in condensed matter. Many studies have shown that the reduced glass transition temperature, Tg/Tl (where Tg and Tl…”
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Prediction of elemental glass-transition temperatures of metals from thermophysical properties of liquids by Gangopadhyay, A.K., Kelton, K.F.

“…Since extremely high quench rates (1012 to 1014 K/s) are normally necessary to form elemental metallic glasses, very few are known. Even when synthesized, very…”
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Phase diagram studies of Ti–Zr–Ni alloys containing less than 40 at.% Ni and estimated critical cooling rate for icosahedral quasicrystal formation from the liquid by Lee, G.W., Gangopadhyay, A.K., Kelton, K.F.

“…A detailed phase diagram study of Ti–Zr–Ni alloys has been conducted using conventional X-ray scattering, microstructural and thermal annealing, and levitation…”
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Effect of microalloying on the formation and stability of the Ti–Zr–Ni icosahedral quasicrystal by Lee, G.W., Gangopadhyay, A.K., Kelton, K.F.

“…The influence of small additions of Cu, Ag, Au, Pt, Pb, and Si on the formation and stabilization of Ti–Zr–Ni icosahedral quasicrystal (i-phase) are discussed…”
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The effect of phase separation on subsequent crystallization in Al88Gd6La2Ni4 by GANGOPADHYAY, A. K, CROAT, T. K, KELTON, K. F

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Friction and wear of tribofilms formed by zinc dialkyl dithiophosphate antiwear additive in low viscosity engine oils by McQueen, J.S., Gao, H., Black, E.D., Gangopadhyay, A.K., Jensen, R.K.

“…Friction and wear characteristics of low viscosity SAE 5W-20 engine oils containing different amounts of phosphorus were studied using two different test…”
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X-ray and electrostatic levitation undercooling studies in Ti–Zr–Ni quasicrystal forming alloys by Kelton, K.F, Gangopadhyay, A.K, Lee, G.W, Hannet, L, Hyers, Robert W, Krishnan, S, Robinson, Michael B, Rogers, Jan, Rathz, Thomas J

“…The first undercooling measurements on electrostatic-levitated droplets of TiZrNi alloys that form the icosahedral quasicrystal phase are presented. The…”
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Containerless Measurements of Thermophysical Properties of Zr54Ti8Cu20Al10Ni8 by BRADSHAW, R.C., WARREN, M.E., ROGERS, J.R., RATHZ, T.J., GANGOPADHYAY, A.K., KELTON, K.F., HYERS, R.W.

“…:  High‐temperature measurement and study of reactive materials can be difficult with conventional processing methods because contamination from the measuring…”
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Amorphous hydrogenated carbon films for tribological applications I. Development of moisture insensitive films having reduced compressive stress by Gangopadhyay, A.K., Willermet, P.A., Tamor, M.A., Vassell, W.C.

“…Although earlier investigations on the tribological behaviour of amcrphous hydrogenated carbon (AHC) films in sliding contact with steel showed encouraging…”
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A method to predict the glass transition temperature in metallic glasses from properties of the equilibrium liquid by Dai, R., Gangopadhyay, A.K., Chang, R.J., Kelton, K.F.

“…The glass transition temperature, Tg, is important for predicting glass formation and stability and for designing processing steps for tailoring the glass to…”
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Shape-dependent magnetic properties of Co nanostructure arrays synthesized by pulsed laser melting by Shirato, N., Sherrill, S., Gangopadhyay, A.K., Kalyanaraman, R.

“…One dimensional (1D) magnetic nanowires show unique magnetic behaviors, such as large coercivity and high remanence, in comparison to the bulk and thin film…”
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Icosahedral order, frustration, and the glass transition: evidence from time-dependent nucleation and supercooled liquid structure studies by Shen, Y T, Kim, T H, Gangopadhyay, A K, Kelton, K F

“…One explanation for the glass transition is a geometrical frustration owing to the development of non-space-filling short-range order (icosahedral,…”
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Local structure of equilibrium and supercooled Ti-Zr-Ni liquids by Lee, G. W., Gangopadhyay, A. K., Hyers, R. W., Rathz, T. J., Rogers, J. R., Robinson, D. S., Goldman, A. I., Kelton, K. F.

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Nanosecond laser-induced synthesis of nanoparticles with tailorable magneticanisotropy by Krishna, H., Gangopadhyay, A.K., Strader, J., Kalyanaraman, R.

“…Controlling the magnetic orientation of nanoparticles is important for many applications. Recently, it has been shown that single domain ferromagnetic…”
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A case for local icosahedral order in undercooled metallic liquids and the influence on the nucleation barrier by Kelton, K.F., Gangopadhyay, A.K., Kim, T.H., Lee, G.W.

“…An overview of recent experimental and theoretical investigations on undercooled liquids is given, indicating developing short-range order with undercooling…”
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Nucleation and Thermophysical Properties of Glass-Forming Liquids by Gangopadhyay, A. K., Hyers, R. W., Kelton, K. F.

“…The intimate links among structure, nucleation, and thermophysical properties are demonstrated from a few select experiments on high-melting-temperature…”
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In situ high-energy X-ray diffraction study of the local structure of supercooled liquid Si by KIM, T. H, LEE, G. W, SIEVE, B, GANGOPADHYAY, A. K, HYERS, R. W, RATHZ, T. J, ROGERS, J. R, ROBINSON, D. S, KELTON, K. F, GOLDMAN, A. I

“…Employing the technique of electrostatic levitation, coupled with high-energy x-ray diffraction and rapid data acquisition methods, we have obtained high…”
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Mechanisms for nanocrystal formation in metallic glasses by Kelton, K.F., Croat, T.K., Gangopadhyay, A.K., Xing, L.-Q., Greer, A.L., Weyland, M., Li, X., Rajan, K.

“…Possible mechanisms for nanocrystal formation in metallic glasses are discussed, focusing primarily on the Al–transition metal–rare earth glasses. The…”
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