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Superconductivity in granular films is controlled by the grain size and the inter-grain coupling. In a two-component granular system formed by a random mixture of a normal metal (N) and a superconductor (S), the superconducting nano-grains…

介观与纳米尺度物理 · 物理学 2017-04-27 Pradnya Parab , Vivas Bagwe , Bhagyashree Chalke , H. Muthurajan , Pratap Raychaudhuri , Sangita Bose

Bicontinuous nanoporous materials possess remarkable mechanical properties, such as higher specific strength and lower specific modulus compared to fully dense materials combined with low densities and high specific surface areas.…

材料科学 · 物理学 2026-04-15 J. A. Worden , J. Biener , C. Hin

Al-doped ZnO thin films were deposited using reactive high power impulse magnetron sputtering at substrate temperatures between room temperature and 600 $\bullet$ C. Two sample series with different oxygen partial pressures were studied.…

材料科学 · 物理学 2025-03-03 Martin Mickan , Ulf Helmersson , David Horwat

This work demonstrates that depositing a thin layer of Mo (5-15 nm) onto a 10 nm thick NbN strip leads to a significant increase in the nonlinearity of the kinetic inductance $L_k$. Specifically, the change in $L_k$ with increasing current…

Size plays an important role on the deformation mechanism of nanopillars. With decreasing size, many FCC nanopillars exhibit dislocation starvation state which is responsible for their high strength. However, many details about the…

材料科学 · 物理学 2023-10-04 G. Sainath , Vani Shankar , A. Nagesha

The results of dynamic strength tests of the alumina ceramics with various grain sizes are presented. The ceramics were obtained by Spark Plasma Sintering (SPS) of industrial submicron and fine Al2O3 powders. The heating up was performed…

Scaling superconducting digital circuits requires fundamental changes in the current material set and fabrication process. The transition to 300 mm wafers and the implementation of advanced lithography are instrumental in facilitating…

Cuprous oxide (Cu2O) films from 25 nm to 1500 nm were electrodeposited on n-Si(100) and Ni/n-Si(100) substrates from aqueous solution at room temperature. X-ray diffraction and transmission electron microscopy imaging show that the Cu2O…

The objective of the present paper is to investigate the mechanical properties of carbon nanotubes. We use classical molecular dynamics simulation in order to study the effect of external compression, bending and torsion to nanotubes. We…

介观与纳米尺度物理 · 物理学 2014-11-27 N. Stefanakis

A central focus in high strain rate research is understanding the dynamic behavior of materials at strain rates where a strength upturn is observed. While strength upturns at strain rates of $10^3$ to $10^4~\mathrm{s}^{-1}$ have been widely…

Second Generation advanced high strength steel is the material of choice for modern automotive structural parts because of its outstanding maximal elongation and tensile strength. Nonetheless there is still a lack of corrosion protection…

材料科学 · 物理学 2013-02-01 M. Arndt , J. Duchoslav , K. Preis , L. Samek , D. Stifter

Tensile tests at room temperature are performed using molecular dynamics on all configurations of single-walled carbon nanotubes up to 4 nm in diameter. Distributions of the Young's modulus, Poisson's ratio, ultimate tensile strength and…

应用物理 · 物理学 2021-09-08 Marko Canadija

Nickel carbon based multi-layers are a viable route towards future hard X-ray and soft $\gamma$-ray focusing telescopes. Here, we study the Pulsed Laser Deposition growth conditions of such bilayers by Reflective High Energy Electron…

材料科学 · 物理学 2018-01-08 Tjeerd R. J. Bollmann

Flexible NbC nanocomposite thin films with carbon content ranging from 0 to 99 at.% were deposited at room temperature on Si (100) and polystyrene substrates by non-reactive magnetron sputtering from pure Nb and C targets without applying…

We investigate the mechanical properties of a doubly-clamped, double-layer nanobeam embedded into an electromechanical system. The nanobeam consists of a highly pre-stressed silicon nitride and a superconducting niobium layer. By measuring…

介观与纳米尺度物理 · 物理学 2015-01-21 Fredrik Hocke , Matthias Pernpeintner , Xiaoqing Zhou , Albert Schliesser , Tobias J. Kippenberg , Hans Huebl , Rudolf Gross

Recently it was discovered that torsion modes of strained nanoribbons exhibit dissipation dilution, giving a route to enhanced torque sensing and quantum optomechanics experiments. As with all strained nanomechanical resonators, an…

介观与纳米尺度物理 · 物理学 2025-06-04 Atkin D. Hyatt , Aman R. Agrawal , Christian M. Pluchar , Charles A. Condos , Dalziel J. Wilson

The thermally activated fracture processes in the carbon backbone of diamond-like carbon nanothreads and the hydrogen desorption from them has been studied by the molecular dynamics method. Specifically, the temperature dependence of the…

介观与纳米尺度物理 · 物理学 2016-11-23 L. A. Openov , A. I. Podlivaev

We studied Ni50+xTi50-x with compositions up to x = 2, performing 47Ti and 49Ti nuclear magnetic resonance (NMR) measurements from 4 K to 400 K. For large x in this system, a strain-glass appears in which frozen ferroelastic nano-domains…

材料科学 · 物理学 2023-07-31 Rui Li , Jacob Santiago , Daniel Salas , Ibrahim Karaman , Joseph H. Ross

The crystallization process and the magnetization of Cr diluted CoFeB was investigated in both ribbon samples and thin film samples with Cr content up to 30 at. %. A primary crystallization of bcc phase from an amorphous precursor in ribbon…

材料科学 · 物理学 2015-06-17 Yishen Cui , Manli Ding , S. Joseph Poon , T. Paul Adl , S. Keshavarz , Tim Mewes , Stuart A. Wolf , Jiwei Lu

Nanocrystalline metals are promising materials for wear-resistant applications due to their superior strength and hardness, but prior work has shown that cyclic loading can lead to coarsening. In this study, scratch wear tests were carried…

材料科学 · 物理学 2018-09-10 Jason F. Panzarino , Timothy J. Rupert