Critical conditions for escape of a high-speed fullerene from a BNC nanobeam after collision

Cai, Kun; Yang, Likui; Shi, Jing; Qin, Qing Hua

doi:10.1038/s41598-017-18789-7

Cited by 9 publications

(7 citation statements)

References 60 publications

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“…Between 100 K and 150 K, the ribbon has a constant bending stiffness, i.e., the stiffness is independent of temperature. The two properties can be adopted for design of a temperature-dependent nano-device, e.g., nano-resonator 30,35,36 .…”

Section: Resultsmentioning

confidence: 99%

Vibration behavior of diamondene nano-ribbon passivated by hydrogen

Wang

Zhang

Shi

et al. 2019

Sci Rep

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Diamondene is a new kind of two dimensional carbon allotrope with excellent properties and passivation approaches are often used to reduce the extremely high pressure required during its fabrication. When a one-end-clamped diamondene ribbon is hydrogenated on one surface, the ribbon tends to bend and vibrate due to asymmetric layout of C-H bonds on two surfaces. In the present work, the vibration behavior, including natural curvatures and vibration frequencies of diamondene ribbons, were investigated by molecular dynamics simulations. Results indicate that the natural curvature radius of a narrow diamondene ribbon is close to 12.17 nm at a temperature below 150 K, which is essential for fabricating an arc nanodevice. The first order frequency (f1) of a cantilever beam made from the ribbon follows traditional beam vibration theory if the slenderness ratio is low. In particular, f1 increases logarithmically at temperature below 50 K, but changes slightly between 50 K and 150 K. It suggests a design scheme for a nanoresonator with temperature-controlled frequency.

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Section: Resultsmentioning

confidence: 99%

Vibration behavior of diamondene nano-ribbon passivated by hydrogen

Wang

Zhang

Shi

et al. 2019

Sci Rep

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“…For a fullerene with given incident velocity, it may be attracted and attached to the beam when the velocity is low. If a high-speed C 60 is used, the fullerene may escape from the beam after collision 23 . However, when the incident velocity is higher than a critical value, the beam will buckle, and the minimal incident velocity which can lead to beam buckling 30 , 31 is labeled as “ MIV_B ”.…”

Section: Models and Methodologymentioning

confidence: 99%

“…Measurement of a high-speed nanoparticle is still an open issue. Cai et al 23 estimated the dynamic response of a clamped–clamped BNCNT-based beam impacted by a high-speed fullerene. The minimal escaping velocity of the nanoparticle with respect to the nanobeam was found by molecular dynamics simulation approach.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear vibration of a buckled/damaged BNC nanobeam transversally impacted by a high-speed C60

Shi

Yang

Shen

et al. 2021

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Nanotube can be used as a mass sensor. To design a mass sensor for evaluating a high-speed nanoparticle, in this study, we investigated the impact vibration of a cantilever nanobeam being transversally collided by a high-speed C60 at the beam's free end with an incident velocity of vIn. The capped beam contains alternately two boron nitride zones and two carbon zones on its cross section. Hence, the relaxed beam has elliptic cross section. The vibration properties were demonstrated by molecular dynamics simulation results. Beat vibration of a slim beam can be found easily. The 1st and the 2nd order natural frequencies (f1 and f2) of the beam illustrate the vibration of beam along the short and the long axes of its elliptic cross section, respectively. f2 decreases with increasing temperature. A minimal value of vIn leads to the local buckling of the beam, and a different minimal vIn leading to damage of the beam. For the same system at a specified temperature, f2 varies with vIn. When the beam bends almost uniformly, f2 decreases linearly with vIn. If vIn becomes higher, the beam has a cross section which buckles locally, and the buckling position varies during vibration. If vIn approaches the damage velocity, a fixed contraflexture point may appear on the beam due to its strong buckling. Above the damage velocity, f2 decreases sharply. These results have a potential application in design of a mass sensor.

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“…The diamond hardness is greatly higher than the GaN substrate, therefore, the diamond abrasive is This study carried out LAMMPS code [38] to simulate the model, using the NVE ensemble at a temperature of 300 K, with 1.0 fs time step. The Ga-N interactions applied Stillinger-Weber potential [39,40], while the N-C interactions used the BNC Tersoff potential [41,42]. The Ga-C implied the Lennard-Jones potential with σ = 3.2990 Å and ε = 0.0565 eV [43].…”

Section: Methodsmentioning

confidence: 99%

Atomistic wear mechanisms and deformation evolution in polishing

Fang

Nguyen

2020

Preprint

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Our aim with this study was a new insight into the sub-nanoscale of polishing and provides the atomic view of the material removal and wear mechanisms by carrying out molecule dynamics simulation. We proposed and analyzed a model with a diamond abrasive particle that sliding or rolling on the surface of GaN workpieces. The authors investigated, step by step, the effects of polishing depths, speeds, abrasive sizes, and crystalline orientations on the wear mechanisms and material removal. The wear mechanisms of the sliding motion were adhering, ploughing, and cutting, depending on the depths. While the wear mechanisms of rolling motion are adhering and ploughing. Notably, in both stages of sliding and rolling, there is an existence of a critical point at 5.0 Å depth when we considered the deformation behaviors. Below that critical point, the GaN workpiece will present an elastic deformation. From the aforementioned point, the workpiece would be plastically deformed. Besides, from 10 Å depth, the dislocation began to appear and evolute simultaneously with the development of the maximum shear stress. The sliding motion on the Ga-face could remove a greater number of atoms than that of the N-face. Moreover, direction [1-100] on Ga-face requesting more forces to polish than direction [11-20]. In conclusion, the main achievements that contribute to the field can be summarized as follows: the atomistic wear mechanisms of sliding and rolling motions, material removal, and the role of rolling motion at the sub-nanoscale during the ultrafine flat polishing process.

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Critical conditions for escape of a high-speed fullerene from a BNC nanobeam after collision

Cited by 9 publications

References 60 publications

Vibration behavior of diamondene nano-ribbon passivated by hydrogen

Vibration behavior of diamondene nano-ribbon passivated by hydrogen

Nonlinear vibration of a buckled/damaged BNC nanobeam transversally impacted by a high-speed C60

Atomistic wear mechanisms and deformation evolution in polishing

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