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Related papers: In situ visualization of Ni-Nb bulk metallic glass…

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In the present paper, the analysis of polishing, grinding and sand-blasting processes on oxidation behavior of nickel, copper and nickel-copper alloy has been investigated. Surface roughness has been measured using two methods: by contact…

Applied Physics · Physics 2020-11-19 Daria Serafin , Wojciech J. Nowak , Bartek Wierzba

Crystal growth and crystal coalescence processes in supercooled systems strongly depend on the concentration of crystallization centers. We perform atomistic dynamics simulations of the crystallization process in the ultrathin metallic film…

Materials Science · Physics 2019-09-04 Bulat N. Galimzyanov , Vladimir I. Ladyanov , Anatolii V. Mokshin

Vapor deposition of molecules on a substrate often results in glassy materials of high kinetic stability and low enthalpy. The extraordinary properties of such glasses are attributed to high rates of surface diffusion during sample…

Soft Condensed Matter · Physics 2015-05-20 Deepanjan Bhattacharya , Vlad Sadtchenko

Ni-rich $\gamma$ cells and Nb-rich eutectic droplets that form during laser power bed fusion solidification of Ni-Nb alloys are studied using experiments and simulations. Finite element simulations estimate the cooling rates in the melt…

Materials Science · Physics 2017-11-21 Supriyo Ghosh , Mark R. Stoudt , Lyle E. Levine , Jonathan E. Guyer

Polycrystalline LiMnBO3 is a promising cathode material for Li-ion batteries. In this work, we investigated the thermal, structural and electrical properties of glassy and nanocrystallized materials having the same chemical composition. The…

Thin-film solid-state metal dealloying (thin-film SSMD) is a promising method for fabricating nanostructures with controlled morphology and efficiency, offering advantages over conventional bulk materials processing methods for integration…

Fast scanning calorimetry (FSC) was employed to investigate glass softening dynamics in amorphous solid water (ASW) nano-aggregates with thicknesses ranging from 2 to 20 nm. ASW nano-aggregates were prepared by vapor-deposition on the…

Soft Condensed Matter · Physics 2014-11-03 Deepanjan Bhattacharya , Liam OReilly , Vlad Sadtchenko

A precision measurement of the photoionization of pure sodium and potassium nanoparticles isolated in a beam enabled an accurate determination of their work functions as a function of temperature. In addition to resolving and quantifying…

Mesoscale and Nanoscale Physics · Physics 2026-02-18 Abdelrahman O. Haridy , Atef A. Sheekhoon , Vitaly V. Kresin

The ferroelectric nematic phase (NF) is a recently discovered phase of matter in which the orientational order of the conventional nematic liquid crystal state is augmented with polar order. Atomistic simulations suggest that the polar NF…

Soft Condensed Matter · Physics 2023-09-26 Charles Parton-Barr , Helen Gleeson , Richard Mandle

We report high quality single crystalline growth of SmBi using flux method. The compound crystallizes in the simple rock salt structure with space group Fm3m. The cubic structure of the single crystal was confirmed by Laue diffraction…

We present here a detailed investigation into the magnetic ordering of full Heusler alloy Ga$_2$MnCo using dc, ac magnetization measurements, neutron diffraction and neutron depolarization experiments. Crystal structure at room temperature…

Strongly Correlated Electrons · Physics 2018-05-21 Tamalika Samanta , P. A. Bhobe , A. Das , A. Kumar , A. K. Nigam

The amorphous-to-crystalline transition in Al(1.0%wtSi)/Zr and Al(Pure)/Zr multilayers grown by direct-current magnetron sputtering system has been characterized over a range of Al layer thicknesses (1.0-5.0 nm) by using a series of…

The details of phase separation of a Ni-6.5Al-9.9Mo aged at 978 K for aging times ranging from 0.125 to 1024 h are investigated by atom-probe tomography and lattice-kinetic Monte Carlo (LKMC) simulations. On the basis of the temporal…

Materials Science · Physics 2018-09-21 Yiyou Tu , Zugang Mao , Ronald D. Noebe , David N. Seidman

Using \textit{ab initio} calculation, we investigate systematically the structural and electronic properties of Ni$_{2}$Nb$_{1+x}$Sn$_{1-x}$ ($x$ = 0, 0.25, 0.50). Here, projector augmented wave approach (PAW) implemented in the Vienna…

Materials Science · Physics 2013-04-08 Soumyadipta Pal

Extensive molecular dynamics simulations show that a short-range central potential, suited to model C60, undergoes a high temperature transition to a glassy phase characterized by the positional disorder of the constituent particles.…

Soft Condensed Matter · Physics 2007-05-23 Maria C. Abramo , Carlo Caccamo , Dino Costa , Romina Ruberto

Cycling of a metallic glass between ambient and cryogenic temperatures can induce higher-energy states characteristic of glass formation on faster cooling. This rejuvenation, unexpected because it occurs at small macroscopic strains and…

Disordered Systems and Neural Networks · Physics 2022-09-22 Baoshuang Shang , Weihua Wang , Alan Lindsay Greer , Pengfei Guan

The aging of a nanocrystalline equiatomic ZnSe alloy produced by mechanical alloying was investigated using X-ray diffraction (XRD) and differential scanning calorimetry (DSC) techniques. The measured XRD patterns showed that Se atoms…

Materials Science · Physics 2009-11-07 K. D. Machado , J. C. de Lima , T. A. Grandi , C. E. M. de Campos , A. A. M. Gasperini

The {\mu}-phase is a common precipitation phase in superalloys and it exists in a wide composition and temperature range. As such, we study the influences of composition and temperature on its plasticity by micropillar compression tests and…

Materials Science · Physics 2023-02-01 W. Luo , Z. Xie , P. -L. Sun , J. S. K. -L. Gibson , S. Korte-Kerzel

X-ray measurements reveal a crystalline monolayer at the surface of the eutectic liquid Au_{82}Si_{18}, at temperatures above the alloy's melting point. Surface-induced atomic layering, the hallmark of liquid metals, is also found below the…

The twist-bend nematic (Ntb) phase is a recent addition to the nematic (N) phases of liquid crystals (LCs). A net polar order in the Ntb phase under an external electric field was predicted in several recent theoretical studies but yet to…

Soft Condensed Matter · Physics 2022-09-13 Sourav Patranabish , Aloka Sinha , Madhu B. Kanakala , Channabasaveshwar V. Yelamaggad