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Carbon nanotube (CNT)-reinforced nickel matrix composites with different concentrations were processed by high pressure torsion (HPT). We thoroughly characterized the CNT agglomerates' spatial arrangement at different stages of deformation…

We address the atomistic nature of the longitudinal static friction against sliding of graphene nanoribbons (GNRs) deposited on gold, a system whose structural and mechanical properties have been recently the subject of intense experimental…

Mesoscale and Nanoscale Physics · Physics 2017-07-07 Lorenzo Gigli , Nicola Manini , Andrea Benassi , Erio Tosatti , Andrea Vanossi , Roberto Guerra

We develop a high-dimensional neural network potential (NNP) to describe the structural and energetic properties of borophene deposited on silver. This NNP has the accuracy of DFT calculations while achieving computational speedups of…

Materials Science · Physics 2023-12-12 Pierre Mignon , Abdul-Rahman Allouche , Neil Richard Innis , Colin Bousige

Aiming to improve fabrication protocols for boron nitride and graphene (h-BNG) lateral heterostructures, we studied the growth of h-BNG thin films on platinum and their behavior in an oxygen environment. We employed a surface science…

The shock strength dependent formation of diamond represents one of the most intriguing questions in graphite research. Using ab initio DFT-trained carbon GNN model, we observe a strength-dependent graphite transition under shock. The poor…

Materials Science · Physics 2023-11-16 Gu-Wen Chen , Liang Xu , Yao-Ming Li , Zhi-Pan Liu , Sheng-Cai Zhu

A scanning tunneling microscope (STM) supplemented with a force sensor is used to study the mechanical properties of a novel metallic nanostructure: a freely suspended chain of single gold atoms. We find that the bond strength of the…

Condensed Matter · Physics 2009-11-07 G. Rubio-Bollinger , S. R. Bahn , N. Agrait , K. W. Jacobsen , S. Vieira

An age-hardenable Al-Cu-Mg alloy (A2024) was processed by high-pressure torsion (HPT) for producing an ultrafine-grained structure. The alloy was further aged for extra strengthening. The tensile strength then reached a value as high as ~1…

Materials Science · Physics 2020-07-17 Takahiro Masuda , Xavier Sauvage , Shoichi Hirosawa , Zenji Horita

Gold nanoparticles (GNPs) constitute a breakthrough in modern chemistry. The recent success in the synthesis and total structure determination of the precise-composition GNPs provides exciting opportunities for fundamental studies and…

Materials Science · Physics 2015-02-05 Vitaly Chaban

A new hyperelastic material model is proposed for graphene-based structures, such as graphene, carbon nanotubes (CNTs) and carbon nanocones (CNC). The proposed model is based on a set of invariants obtained from the right surface…

Computational Engineering, Finance, and Science · Computer Science 2018-04-30 Reza Ghaffari , Roger A. Sauer

Diamond to graphite transformation is a complex kinetically driven process which has been studied under various conditions for its fundamental importance. We report the transformation of diamond embedded ceramic matrix composites during…

Solid-state materials have recently emerged as a new stage of strong-field physics and attosecond science. The mechanism of the electron dynamics driven by an ultrashort intense laser pulse is under intensive discussion. Here we…

Materials Science · Physics 2020-04-23 Kenichi L. Ishikawa , Yasushi Shinohara , Takeshi Sato , Tomohito Otobe

Nanopowder consolidation under high strain rate shock compression is a potential method for synthesizing and processing bulk nanomaterials. A thorough investigation of the shock deformation of powder materials is of great engineering…

Materials Science · Physics 2024-03-14 D. B. He , M. Y. Wang , W. B. Bi , M. Shang , Y. Cai , L. Deng , X. M. Zhang , J. F. Tang , L. Wang

A Laser-stimulated synthesis of large silver nanoaggregates consisting of hundreds to thousands of nanoparticles is investigated. It is shown that the morphology of the synthesized nanostructures can be controlled with light and monitored…

Chemical Physics · Physics 2009-11-11 A. K. Popov , R. Tanke , J. Brummer , M. Loth , R. Langlois , A. Wruck , G. Taft , R. Schmitz

Accelerating and colliding particles has been a key strategy to explore the texture of matter. Strong lightwaves can control and recollide electronic wavepackets, generating high-harmonic (HH) radiation which encodes the structure and…

Mesoscale and Nanoscale Physics · Physics 2016-04-14 M. Hohenleutner , F. Langer , O. Schubert , M. Knorr , U. Huttner , S. W. Koch , M. Kira , R. Huber

In this article, we present a description of the behaviour of shock-compressed solid materials following the Geometrical Shock Dynamics (GSD) theory. GSD has been successfully applied to various gas dynamics problems, and here we have…

Materials Science · Physics 2025-02-06 R. K. Anand

This study sequentially investigates the enhancement of fracture behavior in adhesive joints. Initially, mechanical sanding techniques were explored, revealing significant improvements of 55% in fracture energy and 38% in load-bearing…

Materials Science · Physics 2024-06-24 Roohollah Nazari , Rashid Hakimi , Mohammad Daneshfar , Behnam Talebi

Hybrid spin-mechanical systems have great potentials in sensing, macroscopic quantum mechanics, and quantum information science. In order to induce strong coupling between an electron spin and the center-of-mass motion of a mechanical…

Quantum Physics · Physics 2017-08-15 Yue Ma , Thai M. Hoang , Ming Gong , Tongcang Li , Zhang-qi Yin

On-surface synthesis enables the fabrication of graphene nanoribbons (GNRs) with atomic precision, allowing their electronic, optical, and magnetic properties to be tuned by engineering edge structure and width. Progress on the synthesis of…

The observation of intense visible fluorescence from silver and iron nanoparticles in different solution phases and surface capping is reported here. Metallic silver and iron nanoparticles were obtained by exploding pure silver and iron…

Materials Science · Physics 2007-05-23 Abdullah Alqudami , S. Annapoorni

Manipulation of metal nanoparticles using atomic force microscope is a promising new technique for probing tribological properties at the nanoscale. In spite of some advancements in experimental investigations, there is no unambiguous…

Mesoscale and Nanoscale Physics · Physics 2010-11-25 Alexei V. Khomenko , Nikolay V. Prodanov