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Contemporary powder-based polycrystalline nickel-base superalloys inherit microstructures and properties that are heavily determined by the thermo-mechanical treatments during processing. Here, the influence of a thermal exposure alone to…

In this work, we developed an interatomic potential for saturated hydrocarbons using the modified embedded-atom method (MEAM), a reactive semi-empirical many-body potential based on density functional theory and pair potentials. We…

Chemical Physics · Physics 2017-09-13 S. Nouranian , M. A. Tschopp , S. R. Gwaltney , M. I. Baskes , M. F. Horstemeyer

The effect of Fe and Ni catalysts on the synthesis of carbon nanotubes (CNTs) using atmospheric pressure chemical vapor deposition (APCVD) was investigated. Field emission scanning electron microscopy (FESEM) analysis suggests that the…

Materials Science · Physics 2019-08-02 J. Sengupta , C. Jacob

Bulk V2O3 features concomitant metal-insulator (MIT) and structural (SPT) phase transitions at TC ~ 160 K. In thin films, where the substrate clamping can impose geometrical restrictions on the SPT, the epitaxial relation between the V2O3…

This paper presents the preliminary results of optical characterization using spectroscopic ellipsometry of wurtzite indium gallium nitride (InxGa1-xN) thin films with medium indium content (0.38<x<0.68) that were deposited on silicon…

Materials Science · Physics 2012-01-16 D. V. P. McLaughlin , Joshua M. Pearce

Sophisticated thin film growth techniques increasingly rely on the addition of a plasma component to open or widen a processing window, particularly at low temperatures. However, the addition of the plasma into the growth environment also…

We have grown (111)- and (001)-oriented NiO thin films on (0001)-Sapphire and (001)-MgO substrates using pulsed laser deposition (PLD), respectively. DC magnetic susceptibility measurements underline that the N\'eel temperatures of the…

Materials Science · Physics 2024-12-05 S. Kaur , Smriti Bhatia , Pooja , Kshitij Sharma , V. K. Malik , J. P. Singh , K. Sen

4d transition metal oxides have emerged as promising materials for numerous applications including high mobility electronics. SrNbO$_{3}$ is one such candidate material, serving as a good donor material in interfacial oxide systems and…

Materials Science · Physics 2022-10-31 Suresh Thapa , Sydney Provence , Steve M. Heald , Marcelo A. Kuroda , Ryan B. Comes

This paper presents a detailed computational protocol for atomistic simulation of the formation and growth of metal-containing nanostructures during the Focused Electron Beam Induced Deposition (FEBID) process. The protocol is based upon…

Chemical Physics · Physics 2023-09-06 Alexey Prosvetov , Alexey V. Verkhovtsev , Gennady B. Sushko , Andrey V. Solov'yov

The excellent mechanical properties of the Ni-based superalloy IN718 mainly result from coherent $\gamma''$ precipitates. Due to a strongly anisotropic lattice misfit between the matrix and the precipitate phase, the particles exhibit…

Materials Science · Physics 2020-02-26 Felix Schleifer , Markus Holzinger , Yueh-Yu Lin , Uwe Glatzel , Michael Fleck

To study acoustic wave propagation and the corresponding energy deposition in partially ionized plasmas, we use a two-fluid computational model that treats neutrals and charged particles (electrons and ions) as two separate fluids. This…

Plasma Physics · Physics 2021-04-26 Fan Zhang , Stefaan Poedts , Andrea Lani , Błażej Kuźma , Kris Murawski

We demonstrate that including the second viscosity of an electron gas in the hydrodynamic model allows for highly accurate modeling of the optical response of heavily doped semiconductors. In our setup, which improves resonance visibility…

Plasma-activated bonding of SiCN films offers high bonding strength at the hybrid-bonding interface, thereby enhancing mechanical reliability. Although experimental studies have shown that the interfacial bonding properties of SiCN films…

Materials Science · Physics 2025-11-06 Juheon Kim , Minki Jang , Junhyeok Park , Byungjo Kim , Hayoung Chung

In this study, we leverage a mixture model learning approach to identify defects in laser-based Additive Manufacturing (AM) processes. By incorporating physics based principles, we also ensure that the model is sensitive to meaningful…

Mathematical Physics · Physics 2025-11-11 Sebastian Basterrech , Shuo Shan , Debabrata Adhikari , Sankhya Mohanty

GaSb/InAs/GaSb layer stacks have been grown on InAs metamorphic substrates (pseudosubstrates) by MOVPE, using nitrogen as major carrier gas. We demonstrate that GaSb growth by nitrogen MOVPE on InAs metamorphic substrates (and on InAs…

Current contradictory understanding of passivation comes from overly-complex passive models, defective characterization and misplaced theoretical approaches. From brand-new experimentation, we find that a Ti passive membrane has…

Materials Science · Physics 2024-06-14 Weiwei Lao , Qiaojie Luo , Ying Huang , Haixu Zhong , Chaoqian Lou , Xuliang Deng , Xiufang Wen , Xiaodong Li

A thin film technology compatible with multilayer device fabrication is critical for exploring the potential of the 39-K superconductor magnesium diboride for superconducting electronics. Using a Hybrid Physical-Chemical Vapor Deposition…

Transparent conducting oxides (TCOs) are essential for the optoelectronics industry, but there is a critical gap in cost-effective methods to rapidly deposit low sheet resistance, high transmittance films without damaging delicate…

This work describes morphological and crystalline properties of the InAs islands grown on templates created by focused ion beam (FIB) on indium phosphide (InP) substrates. Regular arrangements of shallow holes are created on the InP (001)…

We study the deposition of tetrahedral amorphous carbon (ta-C) films from molecular dynamics simulations based on a machine-learned interatomic potential trained from density-functional theory data. For the first time, the high $sp^3$…

Materials Science · Physics 2018-04-23 Miguel A. Caro , Volker L. Deringer , Jari Koskinen , Tomi Laurila , Gábor Csányi
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