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The elastic properties of paramagnetic cubic B1 (c-) Cr1-xAlxN ternary alloys are studied using stress-strain and energy-strain methods within the framework of Density Functional Theory (DFT). A strong compositional dependence of the…

Materials Science · Physics 2014-07-10 Liangcai Zhou , David Holec , Paul H. Mayrhofer

We report the observation of a premelting transition at chemically sharp solid-liquid interfaces using molecular-dynamics simulations. The transition is observed in the solid-Al/liquid-Pb system and involves the formation of a liquid…

Materials Science · Physics 2015-06-12 Yang Yang , Mark Asta , Brian B. Laird

We have solved numerically the diffusive Usadel equations that describe the spatially-varying superconducting proximity effect in Ti-Al thin-film bi- and trilayers with thickness values that are suitable for Kinetic Inductance Detectors…

Superconductivity · Physics 2018-07-02 Songyuan Zhao , David J. Goldie , Stafford Withington , Chris N. Thomas

The electromagnetic interaction between Ag nanoparticles on the top of the Si substrate and the incident light has been studied by numerical simulations. It is found that the presence of a dielectric layer with different thickness leads to…

Materials Science · Physics 2011-09-22 Xu Rui , Wang Xiao-Dong , Liu Wen , Xu Xiao-Na , Li Yue-Qiang , Ji An , Yang Fu-Hua , Li Jin-Min

Understanding rapid solidification behavior at velocities relevant to additive manufacturing (AM) is critical to controlling microstructure selection. Although in-situ visualization of solidification dynamics is now possible, systematic…

A new computational tool has been developed to model, discover, and optimize new alloys that simultaneously satisfy up to eleven physical criteria. An artificial neural network is trained from pre-existing materials data that enables the…

Materials Science · Physics 2018-03-09 B. D. Conduit , N. G. Jones , H. J. Stone , G. J. Conduit

Novel multicaloric cooling utilizing the giant caloric response of Ni-Mn-based metamagnetic shape-memory alloys to different external stimuli such as magnetic field, uniaxial stress and hydrostatic pressure is a promising candidate for…

This work studies the influence of several compositional effects on thermal and reactive processes. First, the impact of using a fully compositional model in the context of thermal simulations is considered. Detailed phase behavior models…

Computational Physics · Physics 2021-11-03 Matthias A. Cremon , Margot G. Gerritsen

The next generation of advanced materials is tending toward increasingly complex compositions. Synthesizing precise composition is time-consuming and becomes exponentially demanding with increasing compositional complexity. An experienced…

Materials Science · Physics 2024-03-12 Nathan Johnson , Aashwin Ananda Mishra , Apurva Mehta

Transition metal aluminum nitrides are a technologically important class of multifunctional ceramics, however, the HfAlN system remains largely unexplored. We investigate phase stability, nanostructure design, and mechanical behavior of…

In this paper we compare the composition fluctuations and interaction potentials of a good metallic glass former, Cu$_{50}$Zr$_{50}$, and a poor glass former, Ni$_{50}$Al$_{50}$. The Bhatia-Thornton correlations functions are calculated.…

Materials Science · Physics 2019-01-16 Chunguang Tang , Peter Harrowell

The interface between NiCr alloys and FLiNaK molten salt exhibits complex corrosion behavior, mainly driven by intricate chemical interactions involving Cr and F$\mathrm{^-}$ ions. Understanding these dynamic reactions is crucial for…

Materials Science · Physics 2025-03-12 Hamdy Arkoub , Swarit Dwivedi , Adri C. T. van Duin , Miaomiao Jin

TiNiPd based shape memory alloys (SMAs) share similar microstructural features as TiNiCu-based SMAs known for their exceptional resistance to functional fatigue due to their high crystallographic compatibility, nanometer sized grains and…

Materials Science · Physics 2025-05-02 Lars Bumke , Niklas Wolff , Lorenz Kienle , Eckhard Quandt

Composite materials comprising a porous Ti2AlC matrix and Al 6061 alloy were fabricated by a current-activated pressure assisted melt infiltration process. Coarse, medium and fine meso-structures were prepared with Al alloy filled pores of…

Applied Physics · Physics 2019-08-26 D. A. H. Hanaor , L. Hu , W. H. Kan , G. Proust , M. Foley , I. Karaman , M. Radovic

Tailoring and improving material properties by alloying is a long-known and used concept. Recent research has demonstrated the potential of ab initio calculations in understanding the material properties at the nanoscale. Here we present a…

Materials Science · Physics 2013-10-16 David Holec , Liangcai Zhou , Richard Rachbauer , Paul H. Mayrhofer

The process of nickel electroforming is becoming increasingly important in the manufacture of MST products, as it has the potential to replicate complex geometries with extremely high fidelity. Electroforming of nickel uses multi-component…

Other Computer Science · Computer Science 2007-11-29 D. Allen , N. Duclos , I. Garbutt , M. Saumer , Ch. Dhum , M. Schmitt , J. E. Hoffmann

The structural and chemical properties of metal nanoparticles are often dictated by their interactions with molecular ligand shells. These interactions are highly material-specific and can vary significantly even among elements within the…

Stabilization of grain structure is important for nanocrystalline alloys, and grain boundary segregation is a common approach to restrict coarsening. Doping can alter grain boundary structure, with high temperature states such as amorphous…

Materials Science · Physics 2023-09-15 Tianjiao Lei , Esther C. Hessong , Daniel S. Gianola , Timothy J. Rupert

This is an integrated experimental and theoretical study of the dynamics and rheology of self-crosslinked, slightly charged, temperature responsive soft Poly(N-isopropylacrylamide) (pNIPAM) microgels over a wide range of concentration and…

Soft Condensed Matter · Physics 2021-03-04 Gaurav Chaudhary , Ashesh Ghosh , Jin Gu Kang , Paul V. Braun , Randy H. Ewoldt , Kenneth S. Schweizer

Cobalt-based alloys with {\gamma}/{\gamma}' microstructures have the potential to become the next generation of superalloys, but alloy compositions and processing steps must be optimized to improve coarsening, creep, and rafting behavior.…