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A series of MD and DFT simulations were performed to investigate hydrogen self-clustering and retention in tungsten. Using a newly develop machine learned interatomic potential, spontaneous formation of hydrogen platelets was observed after…

Materials Science · Physics 2023-07-20 M. A. Cusentino , E. L. Sikorski , M. J. McCarthy , A. P. Thompson , M. A. Wood

Various mechanisms have been proposed for hydrogen embrittlement, but the causation of hydrogen-induced material degradation has remained unclear. This work shows hydrogen embrittlement due to phase instability (decomposition). In-situ…

The mass physical and dynamic properties of marine mud deposits are a function of the interaction among a maximum of four sediment Phases as follows: (1) clay mineral solids that often include silt and sand size particles of different…

Geophysics · Physics 2022-03-31 Richard H. Bennett , Matthew H. Hulbert , Roger W. Meredith

From microactuators to biological tissues, non-porous materials with the ability to strongly expand when in contact with a solvent are ubiquitous. Consequently, the swelling of polymer systems such as hydrogel has received recently much…

Soft Condensed Matter · Physics 2024-11-04 George T. Fortune , Merlin A. Etzold , Julien R. Landel , Stuart B. Dalziel

We delineate and examine the distinct breakup modes of evaporating water-in-oil emulsion droplets under acoustic levitation. The emulsion droplets consist of decane/dodecane/tetradecane as oil, while the water concentration is varied from…

Fluid Dynamics · Physics 2020-02-21 D Chaitanya Kumar Rao , Saptarshi Basu

Contrary to common assumptions, a transcritical domain exists during the early times of liquid hydrocarbon fuel injection at supercritical pressure. A sharp two-phase interface is sustained before substantial heating of the liquid. Thus,…

Fluid Dynamics · Physics 2024-01-17 Jordi Poblador-Ibanez , William Sirignano , Fazle Hussain

Efficient and sustainable techniques for separating water-methanol mixtures are in high demand in the industry. Recent studies have revealed that membranes and 2D materials could achieve such separation. In our research, we explore the…

Soft Condensed Matter · Physics 2023-06-28 Roger Bellido-Peralta , Fabio Leoni , Carles Calero , Giancarlo Franzese

We use a theoretical model to explore how fluid dynamics, in particular, the pressure gradient and wall shear stress in a channel, affect the deposition of particles flowing in a microfluidic network. Experiments on transport of colloidal…

Soft Condensed Matter · Physics 2023-03-28 Gess Kelly , Navid Bizmark , Bulbul Chakraborty , Sujit S. Datta , Thomas G. Fai

Behaviours of hydrogen, such as fluidity and metallicity, are crucial for our understanding of planetary interiors and the emerging field of high-temperature superconducting hydrides. These behaviours were discovered in complex phase…

How liquid transport occurs in confined spaces is relevant to many industrial and lab-scale processes, ranging from enhanced oil recovery to drug delivery systems. In this work, we investigate propelling microdroplets that form from…

Soft Condensed Matter · Physics 2021-06-15 Gilmar F. Arends , John M. Shaw , Xuehua Zhang

Two-dimensional numerical simulations with Eulerian-Lagrangian method and detailed chemical mechanism are conducted to study the methane detonation propagation across a water curtain with finite thickness. The critical length of the water…

Fluid Dynamics · Physics 2021-10-13 Jingtai Shia , Yong Xu , Wanxing Ren , Huangwei Zhang

Methane is typically thought to be formed in the solid state on the surface of cold interstellar icy grain mantles via the successive atomic hydrogenation of a carbon atom. In the current work we investigate the potential role of molecular…

Astrophysics of Galaxies · Physics 2022-04-06 Thanja Lamberts , Gleb Fedoseev , Marc van Hemert , Danna Qasim , Ko-Ju Chuang , Julia C. Santos , Harold Linnartz

Methane clathrate hydrates, particularly those with an sI structure, are significant due to their potential as energy resources and their impact on gas pipelines. In this study, a two-dimensional (2D) lattice-gas model is employed to…

Disordered Systems and Neural Networks · Physics 2025-02-10 Julian Juan , Maria E. Pronsato , Antonio J. Ramirez-Pastor , Pablo Longone

Methanol is formed via surface reactions on icy dust grains. Methanol is also detected in the gas-phase at temperatures below its thermal desorption temperature and at levels higher than can be explained by pure gas-phase chemistry. The…

Solar and Stellar Astrophysics · Physics 2018-05-02 N. F. W. Ligterink , C. Walsh , R. G. Bhuin , S. Vissapragada , J. Terwisscha van Scheltinga , H. Linnartz

Decomposition of methane using non-thermal plasmas is an attractive route for producing hydrogen-rich gases and valuable carbon nanomaterials. Understanding how plasma discharge modes influence methane decomposition in optimizing…

Plasma Physics · Physics 2025-11-17 Sophia Gershman , Mikhail N. Shneider , Yevgeny Raitses

The vibrational modes of water get significantly modified by external solutes; this becomes particularly important when the solute is hydrophobic. In this work, we examine the effects of a tiny hydrophobe, methane, on the normal modes of…

Soft Condensed Matter · Physics 2021-05-04 Kambham Devendra Reddy , Albin Joy , Rajib Biswas

Molecular segregation in methanol-water mixtures is studied across a wide concentration range as a function of temperature and pressure. Cluster distributions obtained from both neutron diffraction and molecular dynamics simulations point…

Soft Condensed Matter · Physics 2009-11-10 L. Dougan , R. Hargreaves , S. P. Bates , J. L. Finney , V. Reat , A. K. Soper , J. Crain

We review the reservoirs of methane clathrates that may exist in the different bodies of the Solar System. Methane was formed in the interstellar medium prior to having been embedded in the protosolar nebula gas phase. This molecule was…

Hypothesis: Immiscible liquids are commonly used to achieve unique functions in many applications, where the breakup of compound droplets in airflow is an important process. Due to the existence of the liquid-liquid interface, compound…

Fluid Dynamics · Physics 2023-12-27 Zhikun Xu , Yue Zhang , Tianyou Wang , Zhizhao Che

The growth of a methane hydrate seed within a silica slit pore of fixed width has been studied using AllAtom Molecular Dynamics (AA-MD). An AA force field has been used to describe the molecules of the solid silica substrate, with a-quartz…