Výsledky vyhledávání - "Ashcraft, R."

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Prediction of glass formability from liquid properties

Autor: Dai, R., Ashcraft, R., Gangopadhyay, A. K., Kelton, K. F.

Glass formation is one of the most interesting phenomena in the condensed matter field. Considerable effort has gone into understanding and predicting the glass formability. However, the previous prediction requires the glass first made before the pr

Externí odkaz: http://arxiv.org/abs/1902.03315

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Estimates of bond length and thermal expansion coefficients from x-ray scattering experimental data using reverse Monte Carlo simulations

Autor: Ashcraft, R., Kelton, K. F.

The previously discussed anomalous behavior (i.e. negative) of the thermal expansion coefficient obtained from the pair correlation function is examined in the context of the nearest-neighbor distance (bond length) distribution. The bond length distr

Externí odkaz: http://arxiv.org/abs/1810.08889

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Assessing the Reliability of Minimally Constrained Reverse Monte Carlo Simulations for Model Metallic Liquids

Autor: Ashcraft, R., Kelton, K. F.

Molecular dynamics simulations using semi-empirical potentials are examined for three liquids to check the reliability of reverse Monte Carlo (RMC) simulations to reproduce atomic configurations when only total pair correlation functions (TPCF) are u

Externí odkaz: http://arxiv.org/abs/1810.08511

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Experimental measurements of the temperature-dependent Van Hove function in a $\text{Zr}_{80} \text{Pt}_{20}$ liquid

Autor: Ashcraft, R., Wang, Z., Abernathy, D. L., Quirinale, D. G., Egami, T., Kelton, K. F.

Even though the viscosity is one of the most fundamental properties of liquids, the connection with the atomic structure of the liquid has proven elusive. By combining inelastic neutron scattering with the electrostatic levitation technique the time-

Externí odkaz: http://arxiv.org/abs/1810.02351

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Correlation of the fragility of metallic liquids with the high temperature structure, volume, and cohesive energy

Autor: Gangopadhyay, A. K., Pueblo, C. E., Dai, R., Johnson, M. L., Ashcraft, R., Van Hoesen, D., Sellers, M., Kelton, K. F.

The thermal expansion coefficients, structure factors, and viscosities of twenty-five equilibrium and supercooled metallic liquids have been measured using an electrostatic levitation (ESL) facility. The structure factor was measured at the Advanced

Externí odkaz: http://arxiv.org/abs/1703.03467

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