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Artykuły w czasopismach na temat „Surface and interfaces”

Autor: Grafiati

Data publikacji: 6 września 2023

Data aktualizacji: 25 maja 2024

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1

Chan, Chi-Ming, Lu-Tao Wang, and Lin Li. "Applications of Surface Analysis Techniques in Surface Characterization of Polymer Surfaces and Interfaces." Journal of The Adhesion Society of Japan 38, no. 5 (2002): 173–92. http://dx.doi.org/10.11618/adhesion.38.173.

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Chen, Xiaobin, Jiasheng Zhang, Yuanjie Xiao, and Jian Li. "Effect of roughness on shear behavior of red clay – concrete interface in large-scale direct shear tests." Canadian Geotechnical Journal 52, no. 8 (2015): 1122–35. http://dx.doi.org/10.1139/cgj-2014-0399.

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Few studies have focused on evaluating regular surface roughness and its effect on interfacial shear behavior of the red clay – concrete interface. This paper presents the results of a series of laboratory large-scale direct shear tests conducted using different types of red clay – concrete interfaces. The objective is to examine the effect of surface roughness on these types of soil–concrete interfaces. In the smooth-interface tests, the measured peak and residual shear strength values are very close to each other, with no observed shear dilation. The surface roughness is found to have a rema

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Marecek, Vladim^ ^iacute;r. "Surface Layers at the Polarized Liquid/Liquid Interfaces." Review of Polarography 60, no. 1 (2014): 17–24. http://dx.doi.org/10.5189/revpolarography.60.17.

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Robinson, I. K. "Surface Structural Techniques Applied to Interfaces." MRS Bulletin 15, no. 9 (1990): 38–41. http://dx.doi.org/10.1557/s0883769400062436.

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An interface is an internal surface, the boundary between two media which may be crystalline, amorphous solid, or liquid. Its close similarity with a surface, a solid-vacuum boundary, suggests that many of the powerful techniques available for studying surfaces might be applied to the interface structure problem. The extent to which this is possible is the subject of this article.The techniques to be discussed in this article include low energy electron diffraction (LEED), medium energy ion scattering (MEIS), x-ray diffraction, and x-ray reflectivity. (The most widely used method, transmission

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5

Li, Junbai, and Krister Holmberg. "Surface chemistry and interface science." Physical Chemistry Chemical Physics 19, no. 35 (2017): 23568–69. http://dx.doi.org/10.1039/c7cp90152f.

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6

Weidner, Elizabeth, and Thomas C. Weber. "Broadband acoustic characterization of backscattering from a rough stratification interface." Journal of the Acoustical Society of America 155, no. 1 (2024): 114–27. http://dx.doi.org/10.1121/10.0024148.

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Broadband acoustic analysis of scattering from sharp density gradients in the water column generally treat the interfaces as smooth surfaces. However, these interfaces may exhibit roughness owing to external water column forcing and local convective processes. In this work we extend broadband backscatter analysis methods to consider interface roughness by drawing upon methods developed for sea surface and seabed acoustic backscattering. The one-dimensional acoustic model from Weidner and Weber [J. Acoust. Soc. Am. 150(6), 4353–4361 (2021)], which predicts a decay in the reflected wave amplitud

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7

Robinson, I. K. "Surface diffraction on semiconductor surfaces and interfaces." Applied Surface Science 56-58 (January 1992): 117–22. http://dx.doi.org/10.1016/0169-4332(92)90224-l.

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You, Hoydoo, and Zoltán Nagy. "Applications of Synchrotron Surface X-Ray Scattering Studies of Electrochemical Interfaces." MRS Bulletin 24, no. 1 (1999): 36–40. http://dx.doi.org/10.1557/s088376940005171x.

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Aqueous-solution/solid interfaces are ubiquitous in modern manufacturing environments as well as in our living environment, and studies of such interfaces are an active area of science and engineering research. An important area is the study of liquid/solid interfaces under active electrochemical control, which has many immediate technological implications, for example, corrosion/passivation of metals and energy storage in batteries and ultracapacitors. The central phenomenon of electrochemistry is the charge transfer at the interface, and the region of interest is usually wider than a single

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9

Li, Huanhuan, Zhigang Meng, and Songlin Shen. "Effects of Interface Morphology on the Shear Mechanical Properties of Sand–Concrete Interfaces." Materials 16, no. 18 (2023): 6122. http://dx.doi.org/10.3390/ma16186122.

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The morphology of the contact surface between cast-in-place engineering structures and soil is generally random. Previous research focusing on the shear mechanical properties of soil–concrete interfaces has predominantly concentrated on the role of interface roughness by constructing regular concrete surface types, largely neglecting the potential impact of the roughness morphology (i.e., the morphology of the concrete surface). In this study, concrete blocks with the same interface roughness and different roughness morphologies were constructed based on the sand-cone method, including random

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10

Zhang, Hengzhong, and Jillian F. Banfield. "Phase transformation of nanocrystalline anatase-to-rutile via combined interface and surface nucleation." Journal of Materials Research 15, no. 2 (2000): 437–48. http://dx.doi.org/10.1557/jmr.2000.0067.

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The kinetics of phase transformation of nanocrystalline anatase samples was studied using x-ray diffraction at temperatures ranging from 600 to 1150 °C. Kinetic data were analyzed with an interface nucleation model and a newly proposed kinetic model for combined interface and surface nucleation. Results revealed that the activation energy of nucleation is size dependent. In anatase samples with denser particle packing, rutile nucleates primarily at interfaces between contacting anatase particles. In anatase samples with less dense particle packing, rutile nucleates at both interfaces and free

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11

LI, YONG-DONG, and KANG-YONG LEE. "SIZE-DEPENDENT BEHAVIOR OF LOVE WAVE PROPAGATION IN A NANOCOATING." Modern Physics Letters B 24, no. 31 (2010): 3015–23. http://dx.doi.org/10.1142/s0217984910025346.

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The effect of surface/interface stress on mechanical behaviors may become remarkable when the characteristic size of a structure decreases to nanoscale. Various problems have been analyzed to reveal the size-dependent mechanical behaviors of nano structures with curved surfaces/interfaces. In this work, the problem of planar surfaces/interfaces is addressed. The generalized Young–Laplace equation is presented for a planar interface and the propagation behavior of Love wave in a nanocoating is discussed. Parametric studies indicate that if the surface effect of the nanocoating is considered the

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12

Chang, Boyce, Andrew Martin, Paul Gregory, et al. "Functional Materials through Surfaces and Interfaces." MRS Advances 3, no. 37 (2018): 2221–33. http://dx.doi.org/10.1557/adv.2018.399.

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ABSTRACTIn most materials, surfaces and interfaces present a significant portion of the workable area, but this area has often been erroneously perceived as a challenge in processing and thus, largely ignored. Surfaces and interfaces, however, present a network of energetically mismatched (sometimes metastable) molecules that can be exploited to either control surface reactions, engineer bulk stability or reveal new fundamental details of otherwise not well understood processes or systems as described herein. This perspective captures the role of i) structure, ii) chemistry and iii) thermodyna

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13

Gowda, Arun, David Esler, Sandeep Tonapi, Annita Zhong, K. Srihari, and Florian Schattenmann. "Micron and Submicron-Scale Characterization of Interfaces in Thermal Interface Material Systems." Journal of Electronic Packaging 128, no. 2 (2006): 130–36. http://dx.doi.org/10.1115/1.2188952.

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One of the key challenges in the thermal management of electronic packages are interfaces, such as those between the chip and heat spreader and the interface between a heat spreader and heat sink or cold plate. Typically, thermal interfaces are filled with materials such as thermal adhesives and greases. Interface materials reduce the contact resistance between the mating heat generating and heat sinking units by filling voids and grooves created by the nonsmooth surface topography of the mating surfaces, thus improving surface contact and the conduction of heat across the interface. However,

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14

Braski, D. N., and K. B. Alexander. "Auger electron spectroscopy analysis of SiC-whisker surfaces and SiC-whisker/alumina interfaces." Journal of Materials Research 10, no. 4 (1995): 1016–23. http://dx.doi.org/10.1557/jmr.1995.1016.

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Auger Electron Spectroscopy (AES) has been used to examine as-received and oxidized silicon carbide whiskers and their respective whisker/matrix interfaces after fabrication into SiC-whisker-reinforced alumina composites. As-received whisker surfaces exhibited a 2–3 nm-thick near-surface region that was C-rich. Oxygen was detected at the outer surface, but diminished to near zero within 25 nm of the surface. Oxidized whiskers had 60 nm-thick SiO2 surface layers, which was in agreement with the transmission electron microscopy observations. The whisker/matrix interfaces in both composites consi

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15

RAMAN, KARTHIK V., NICOLAE ATODIRESEI, and JAGADEESH S. MOODERA. "TAILORING FERROMAGNET–MOLECULE INTERFACES: TOWARDS MOLECULAR SPINTRONICS." SPIN 04, no. 02 (2014): 1440014. http://dx.doi.org/10.1142/s2010324714400141.

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Understanding the interaction of organic molecules adsorbed on magnetic surfaces has shown considerable progress in recent years. The creation of hybridized interface between carbon-based aromatic molecule and the magnetic surface is observed to give rise to new interface states with unique electronic and magnetic character. This study has opened up a molecular-design initiative to tailor the spin dependent electronic and magnetic functionalities of the hybrid interface. The purpose of this article is to provide a fundamental understanding of the spin-chemistry and spin-physics associated with

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16

Koberstein, Jeffrey T. "Surface and Interface Modification of Polymers." MRS Bulletin 21, no. 1 (1996): 19–23. http://dx.doi.org/10.1557/s0883769400035090.

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The properties of polymeric surfaces and interfaces are ubiquitous in their myriad commercial applications: paints and coatings, adhesives, lubrication, biocompatible materials, flocculation and steric stabilization of colloids, membranes and separation media, immiscible polymer blends, and filled composites. Some of these applications require low-energy surfaces that are chemically inert and are not easily wet with other materials. Other applications require high adhesion and strong interactions between the polymer and substrate. This article discusses fundamental principles governing the beh

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17

Elfring, Gwynn J., L. Gary Leal, and Todd M. Squires. "Surface viscosity and Marangoni stresses at surfactant laden interfaces." Journal of Fluid Mechanics 792 (March 4, 2016): 712–39. http://dx.doi.org/10.1017/jfm.2016.96.

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We calculate here the force on a probe at a viscous, compressible interface, laden with soluble surfactant that equilibrates on a finite time scale. The motion of the probe through the interface drives variations in the surfactant concentration at the interface that in turn leads to a Marangoni flow that contributes to the force on the probe. We demonstrate that the Marangoni force on the probe depends non-trivially on the surface shear and dilatational viscosities of the interface indicating the difficulty in extracting these material properties from force measurements at compressible interfa

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18

Li, Yifan, Yunlu Pan, and Xuezeng Zhao. "Interface conditions of roughness-induced superoleophilic and superoleophobic surfaces immersed in hexadecane and ethylene glycol." Beilstein Journal of Nanotechnology 8 (November 27, 2017): 2504–14. http://dx.doi.org/10.3762/bjnano.8.250.

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Interface conditions are an important property that can affect the drag of fluid flow. For surfaces with different oleophobicity, the boundary slip at the solid–oil interface is mostly larger than that at the solid–water interface. Roughness is a key factor for the wettability of superoleophilic/superoleophobic surfaces, and it has been found to affect the effective value of slip length in measurements. Moreover, there are no studies on the effect of roughness on slip at interfaces between oil and superoleophilic/superoleophobic surfaces. A theoretical description of the real surface roughness

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19

Khanna, Shaweta, Arti Noor, Man Singh Tyagi, and Sonnathi Neeleshwar. "Interface States and Barrier Heights on Metal/4H-SiC Interfaces." Materials Science Forum 615-617 (March 2009): 427–30. http://dx.doi.org/10.4028/www.scientific.net/msf.615-617.427.

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Available data on Schottky barrier heights on silicon and carbon rich faces of 4H-SiC have been carefully analyzed to investigate the mechanism of barrier formation on these surfaces. As in case of 3C and 6H-SiC, the barrier heights depend strongly upon method of surface preparation with a considerable scatter in the barrier height for a given metal-semiconductor system. However, for each metal the barrier height depends on the metal work function and strong pinning of the Fermi level has not been observed. The slopes of the linear relation between the barrier heights and metal work functions

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20

Leistner, Tom, Michael Türk, Alfred Weber, Christian Weber, and Urs A. Peuker. "Selective Separation Using Fluid-Liquid Interfaces." Materials Science Forum 959 (June 2019): 113–24. http://dx.doi.org/10.4028/www.scientific.net/msf.959.113.

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Interfaces between two fluid phases are a potential barrier for particles. Certain particles may not be able to pass such an interface, because they have to overcome a certain resistance. The latter depends on the strength of the interface, which is the surface tension. The second relevant property is the three phase wetting angle, which shows the fluid with the preferred wetting to the particle surface. It depends on the particle properties, like chemical composition, surface structure and surface modification. The third relevant parameter is the particle size. From these three main influence

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21

Porojan, Liliana, Mihaela Bîrdeanu, Cristina Savencu, and Sorin Porojan. "Characterization of Dental Metal-Ceramic Interfaces of Heat Pressed Ceramics on Co-Cr Frameworks Obtained with Different Technologies." Applied Mechanics and Materials 876 (February 2018): 25–30. http://dx.doi.org/10.4028/www.scientific.net/amm.876.25.

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It is known that the quality of metal-ceramic restorations mainly depends on the interface strength. The aim of the study was to evaluate metal–ceramic interfaces of heat pressed ceramic on Co-Cr frameworks obtained with different technologies: melting-casting (CST), computerized milling (MIL), selective laser sintering (SLS) and selective laser melting (SLM). The microstructure of metal–ceramic interfaces and framework topography were characterized by scanning electron microscope (SEM). Sandblasted, polished surfaces and the cross section on the interfaces were observed. Sandblasted surfaces

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22

Saleman, Abdul Rafeq, Mohamad Shukri Zakaria, Ridhwan Jumaidin, Nur Hazwani Mokhtar, and Nor Aslily Sarkam. "Molecular Dynamics Study: Correlation of Heat Conduction Across S-L Interfaces Between Constant Heat Flux and Shear Applied to Liquid Systems." Journal of Mechanical Engineering 19, no. 3 (2022): 33–53. http://dx.doi.org/10.24191/jmeche.v19i3.19795.

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Heat conduction (HC) at solid-liquid (S-L) interfaces play a significant role in the performance of engineering systems. Thus, this study investigates HC at S-L interfaces and its correlation between constant heat flux (CHF) and shear applied to liquid (SAL) systems using non-equilibrium molecular dynamics simulation. The S-L interface consists of solids with the face-centred cubic (FCC) lattice of (110), (111) and (100) planes facing the liquid. The solid is modelled by Morse potential whereas the liquid is modelled by Lennard Jones potential. The interaction between solid-liquid was modelled

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23

Pascall, Andrew J., and Todd M. Squires. "Electrokinetics at liquid/liquid interfaces." Journal of Fluid Mechanics 684 (September 28, 2011): 163–91. http://dx.doi.org/10.1017/jfm.2011.288.

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AbstractElectrokinetic effects at liquid/liquid interfaces have received considerably less attention than at solid/liquid interfaces. Because liquid/liquid interfaces are generally mobile, one might expect electrokinetic effects over a liquid/liquid interface to be faster than over an equivalent solid surface. The earliest predictions for the electrophoretic mobility of charged mercury drops – distinct approaches by Frumkin, along with Levich, and Booth – differed by $O(a/ {\lambda }_{D} )$, where $a$ is the radius of the drop and ${\lambda }_{D} $ is the Debye length. Seeking to reconcile thi

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24

BACHRACH, R. Z., R. D. BRINGANS, MARJORIE A. OLMSTEAD, and R. I. G. UHRBERG. "SYNCHROTRON RADIATION STUDIES OF MBE FORMED SEMICONDUCTOR INTERFACES: Si-GaAs AND GaAs-Si." Modern Physics Letters B 01, no. 03 (1987): 97–109. http://dx.doi.org/10.1142/s0217984987000144.

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Studies of silicon on gallium arsenide and gallium arsenide on silicon interface formation will be described and used as examples of how synchrotron radiation excited photoemission is a powerful probe of surface and interface phenomena. The samples and interfaces studied in this work were prepared in-situ using thermal Ga and As MBE sources and a resistive Si evaporation source. The MBE capability has allowed us to explore atomic and electronic structural issues of interface formation during hetero-epitaxy. We have combined these techniques to explore Si and GaAs surfaces, the adsorbate intera

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Styler, S. A., M. E. Loiseaux, and D. J. Donaldson. "Substrate effects in the photoenhanced ozonation of pyrene." Atmospheric Chemistry and Physics Discussions 10, no. 11 (2010): 27825–52. http://dx.doi.org/10.5194/acpd-10-27825-2010.

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Abstract. We report the effects of actinic illumination on the heterogeneous ozonation kinetics of solid pyrene films and pyrene adsorbed at air-octanol and air-aqueous interfaces. Upon illumination, the ozonation of solid pyrene films and pyrene at the air-aqueous interface proceeds more quickly than in darkness; no such enhancement is observed for pyrene at the air-octanol interface. Under dark conditions, the reaction of pyrene at all three interfaces proceeds via a Langmuir-Hinshelwood-type surface mechanism. In the presence of light, Langmuir-Hinshelwood kinetics are observed for solid py

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Styler, S. A., M. E. Loiseaux, and D. J. Donaldson. "Substrate effects in the photoenhanced ozonation of pyrene." Atmospheric Chemistry and Physics 11, no. 3 (2011): 1243–53. http://dx.doi.org/10.5194/acp-11-1243-2011.

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Abstract. We report the effects of actinic illumination on the heterogeneous ozonation kinetics of solid pyrene films and pyrene adsorbed at air-octanol and air-aqueous interfaces. Upon illumination, the ozonation of solid pyrene films and pyrene at the air-aqueous interface proceeds more quickly than in darkness; no such enhancement is observed for pyrene at the air-octanol interface. Under dark conditions, the reaction of pyrene at all three interfaces proceeds via a Langmuir-Hinshelwood-type surface mechanism. In the presence of light, Langmuir-Hinshelwood kinetics are observed for solid py

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27

Hicks, J., R. Ellis, C. Flaitz, G. Westerman, and L. Powell. "Restoration-enamel interface with argon laser and visible light polymerization of compomer and composite resin restorations: a polarized light and scanning electron microscopic in vitro study." Journal of Clinical Pediatric Dentistry 27, no. 4 (2003): 353–58. http://dx.doi.org/10.17796/jcpd.27.4.dj286712r2r85345.

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This polarized light (PL) and scanning electron microscopic (SEM) in vitro study investigated the effect of argon laser (AL) and visible light (VL) polymerization on the interfaces between compomer and composite resin restorations and the enamel cavosurfaces. Surface topography by SEM revealed a smooth transition between the restorative materials and adjacent enamel surfaces with no microspaces between the restorations and enamel surfaces. The enamel surfaces showed relatively smooth surface coatings with AL curing, compared with exposure of etched prism endings with VL curing. The restoration

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28

Josell, Daniel, and Frans Spaepen. "Surfaces, Interfaces, and Changing Shapes in Multilayered Films." MRS Bulletin 24, no. 2 (1999): 39–43. http://dx.doi.org/10.1557/s0883769400051538.

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It is generally recognized that the capillary forces associated with internal and external interfaces affect both the shapes of liquid-vapor surfaces and wetting of a solid by a liquid. It is less commonly understood that the same phenomenology often applies equally well to solid-solid or solid-vapor interfaces.The fundamental quantity governing capillary phenomena is the excess free energy associated with a unit area of interface. The microscopic origin of this excess free energy is often intuitively simple to understand: the atoms at a free surface have “missing bonds”; a grain boundary cont

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29

Huang, Jingtao, Jingteng Xue, Mingwei Li, et al. "First-Principles Computation of Microscopic Mechanical Properties and Atomic Migration Behavior for Al4Si Aluminum Alloy." Metals 13, no. 9 (2023): 1622. http://dx.doi.org/10.3390/met13091622.

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In this paper, the interfacial behavior and the atom diffusion behavior of an Al4Si alloy were systematically investigated by means of first-principles calculations. The K-points and cutoff energy of the computational system were determined by convergence tests, and the surface energies for five different surfaces of Al4Si alloys were investigated. Among the five surfaces investigated for Al4Si, it was found that the (111) surface was the surface with the lowest surface energy. Subsequently, we investigated the interfacial stability of the (111) surface and found that there were two types of i

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30

PRIVMAN, VLADIMIR. "FLUCTUATING INTERFACES, SURFACE TENSION, AND CAPILLARY WAVES: AN INTRODUCTION." International Journal of Modern Physics C 03, no. 05 (1992): 857–77. http://dx.doi.org/10.1142/s0129183192000531.

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We present an introduction to modern theories of interfacial fluctuations and the associated interfacial parameters: surface tension and surface stiffness, as well as their interpretation within the capillary wave model. Transfer matrix spectrum properties due to fluctuation of an interface in a long-cylinder geometry are reviewed. The roughening transition and properties of rigid interfaces below the roughening temperature in 3d lattice models are surveyed with emphasis on differences in fluctuations and transfer matrix spectral properties of rigid vs. rough interfaces.

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31

Savotchenko, S. E. "Nonlinear surface waves propagating along the composite waveguide consisting of self-focusing slab between defocusing media separated by interfaces with nonlinear response." Journal of Nonlinear Optical Physics & Materials 28, no. 04 (2019): 1950039. http://dx.doi.org/10.1142/s0218863519500395.

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The model of the composite symmetric waveguide consisting of self-focusing slab between defocusing nonlinear media separated by interfaces characterized by own nonlinearity response is proposed. Two new types of nonlinear surface waves propagating along it with anti-phase amplitude oscillations at interface planes are found. The frequencies of the nonlinear surface waves existing near the interfaces with the nonlinear response only are calculated analytically. The conditions of the surface wave existence are found. The frequencies and localization distances of the surface waves in dependence o

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CHEN, KUNFENG, FEI LIU, XITONG LIANG, and DONGFENG XUE. "SURFACE–INTERFACE REACTION OF SUPERCAPACITOR ELECTRODE MATERIALS." Surface Review and Letters 24, no. 03 (2017): 1730005. http://dx.doi.org/10.1142/s0218625x17300052.

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Facing the challenge of low energy density of conventional electric double layer supercapacitors, researchers have long been focusing on the development of novel pseudocapacitive electrode materials with higher energy densities. Since capacitive charge storage reaction mostly occurs on the interface of electrode and electrolyte, the interface chemistry determines the achievable power and energy densities of a supercapacitor. Consequently, understanding of surface–interface reaction mechanism is a key towards efficient design of high-performance supercapacitor electrode materials. In this paper

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Kanev, Kamen. "Tangible Interfaces for Interactive Multimedia Presentations." Mobile Information Systems 4, no. 3 (2008): 183–93. http://dx.doi.org/10.1155/2008/982947.

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This article is devoted to tangible interfaces for steering and control of interactive multimedia presentations. Various methods for digital encoding of physical objects are considered and their applicability in surface encoding for tangible interface components is discussed. Experiments with presentation controls, based on direct interaction with digitally encoded printed handouts are reported. An innovative approach for transferring presentation controls from printed handouts to surfaces of real physical objects is introduced. Consequently labels, digitally enhanced with CLUSPI codes are cre

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HASEGAWA, SHUJI, and SHOZO INO. "CORRELATION BETWEEN ATOMIC-SCALE STRUCTURES AND MACROSCOPIC ELECTRICAL PROPERTIES OF METAL-COVERED Si(111) SURFACES." International Journal of Modern Physics B 07, no. 22 (1993): 3817–76. http://dx.doi.org/10.1142/s0217979293003504.

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In this review, we discuss the relation between the atomic-scale structures (atomic arrangements and electronic states) and the macroscopic electrical properties (surface conductance and Schottky barriers) of metal(Ag, Au, or In)-covered Si (111) surfaces. These surfaces have been one of the most intensively investigated systems with the use of a variety of modern surface science techniques, and diversified information at atomic scales has been obtained. The data of reflection high-energy electron diffraction, scanning tunneling microscopy/spectroscopy, photoemission spectroscopies, and others

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35

Jones, Jessica Catharine, Ethan Kamphaus, Jeffrey R. Guest, Lei Cheng, and Alex B. F. Martinson. "Targeted Dehydration As a Route to Site-Selective Atomic Layer Deposition at TiO₂ Defects." ECS Meeting Abstracts MA2022-02, no. 31 (2022): 1131. http://dx.doi.org/10.1149/ma2022-02311131mtgabs.

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Crystallographic perfection in epitaxial thin film heterostructures can eliminate interface defects that dilute unique properties and reduce device performance. However, the requirement for epitaxial perfection greatly limits the selection of material candidates and deposition processes. Using selective interface reactions (SIRs), an atomic layer deposition (ALD)-based technique, we target transformation of undesirable defect sites at imperfect surfaces. Defects on the TiO2 surface affect the electronic properties, interfaces, and performance of optoelectronic devices that leverage TiO2 interf

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KÄRKKÄINEN, LEO, and KARI RUMMUKAINEN. "CRITICAL SURFACE EXPONENTS IN 2-D 10-STATE POTTS MODEL." International Journal of Modern Physics C 03, no. 05 (1992): 1125–36. http://dx.doi.org/10.1142/s0129183192000750.

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At low temperature, the Potts models can have interfaces between domains ordered to different directions. We use the difference of periodic and twisted boundary conditions to study planar order-order interfaces. We show that the interface tension, energy and width display critical properties as one approaches the critical point. We measure the critical exponents connected to their power like singular behaviour at the critical point.

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FAETTI, SANDRO, and EPIFANIO G. VIRGA. "On nematic surface energies." European Journal of Applied Mathematics 8, no. 3 (1997): 293–99. http://dx.doi.org/10.1017/s0956792597003136.

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We review the main outcomes of a continuum theory for the equilibrium of the interface between a nematic liquid crystal and an isotropic environment, in which the surface free energy density bears terms linear in the principal curvatures of the interface. Such geometric contributions to the energy occur together with more conventional elastic contribution, leading to an effective azimuthal anchoring of the optic axis, which breaks the isotropic symmetry of the interface. The theory assumes the interface to be fixed, as for a rigid cavity filled with liquid crystal, and so it does not apply to

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FUKUI, Ken-ichi. "Surface Analyses for Better Understanding of Surfaces and Interfaces." Hyomen Kagaku 34, no. 11 (2013): 567. http://dx.doi.org/10.1380/jsssj.34.567.

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Kis-Varga, Miklos, G. A. Langer, A. Csik, Z. Erdélyi, and Dezső L. Beke. "Effect of Substrate Temperature on the Different Diffuseness of Subsequent Interfaces in Binary Multilayers." Defect and Diffusion Forum 277 (April 2008): 27–31. http://dx.doi.org/10.4028/www.scientific.net/ddf.277.27.

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Epitaxial, coherent Mo/V multilayers were deposited by magnetron sputtering on (001) oriented MgO substrates at 873K (sample MoV-T), 923K (sample MoV-U) and 973K (sample MoV-V), respectively. In order to estimate the concentration profiles in our multilayers, a superlattice refinement modelling procedure has been used on high-angle XRD symmetric scans. The Mo/V interfaces were always sharper than V/Mo ones (in this notation the order of element reflects the sequence of deposition: e.g. the Mo/V interface was formed by the deposition of the V on the Mo surface). Furthermore the interface diffus

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Alexandris, Stelios, Daniel Ashkenazi, Jan Vermant, Dimitris Vlassopoulos, and Moshe Gottlieb. "Interfacial shear rheology of glassy polymers at liquid interfaces." Journal of Rheology 67, no. 5 (2023): 1047–60. http://dx.doi.org/10.1122/8.0000685.

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When surface-active molecules or particles assemble at fluid–fluid interfaces, these interfaces acquire complex rheological properties that are of importance in processes that involve flow and deformation of interfaces. Although much progress has been made, interfacial rheology measurements and, in particular, the measurement of interfacial rheological properties of polymers at the air-water interface remain challenging. These are due to weak interactions with the water subphase, the polymer backbone conformation, the glass transition of the interfacial layer, and memory effects. In the presen

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Jiang, Guojun, and Sheng Xie. "Comparison of AFM Nanoindentation and Gold Nanoparticle Embedding Techniques for Measuring the Properties of Polymer Thin Films." Polymers 11, no. 4 (2019): 617. http://dx.doi.org/10.3390/polym11040617.

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The surfaces of polymer and interfaces between polymer and inorganic particles are of particular importance for the properties of polymers and composites. However, the determination of the properties of surfaces and interfaces poses many challenges due to their extremely small dimensions. Herein, polystyrene and polymethyl methacrylate thin film on silicon wafer was used as a model system for the measurement of the properties of the polymer near free surface and at the polymer-solid interface. Two different methods, i.e., nanoindentation using atomic force microscopy (AFM) and the gold nanopar

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Yakovkin, I. N. "Surface and Interface Bands of the CdTe–HgTe–CdTe Heterostructure: Evidence of Metallicity." Ukrainian Journal of Physics 66, no. 7 (2021): 630. http://dx.doi.org/10.15407/ujpe66.7.630.

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Performed full-relativistic DFT calculations have demonstrated that thin HgTe layers are metallic and, with increasing thickness, do not become insulators – either ordinary band insulators or topological insulators. The variations of the potential at the CdTe–HgTe interfaces are found to be negligible in comparison with those at the terminating surfaces of the CdTe–HgTe–CdTe films, so that the interfaces in fact do not form any potential well. It is shown that the interface-related bands of the CdTe–HgTe–CdTe films are situated well below EF, so that a dominant input into the density of states

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HASEGAWA, HIDEKI. "MICROSCOPIC UNDERSTANDING AND CONTROL OF SURFACES AND INTERFACES OF COMPOUND SEMICONDUCTORS FOR MESOSCOPIC DEVICES." Surface Review and Letters 07, no. 05n06 (2000): 583–88. http://dx.doi.org/10.1142/s0218625x0000066x.

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Microscopic properties of free surfaces and metal–semiconductor interfaces related to successful realization of mesoscopic devices are discussed for III–V compound semiconductors, with a particular emphasis on Fermi level pinning. Surface states causing pinning are present even on freshly MBE-grown clean (001) and (110) surfaces with well-defined surface structures. Scanning tunneling spectroscopy (STS) measurement gives anomalous spectra with large conductance gaps, and this can be explained by tip-induced local charging of surface states. Pinning on free surfaces can be considerably suppress

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FLORES, FERNANDO, JOSÉ ORTEGA, and RUBÉN PÉREZ. "MANY-BODY EFFECTS AND THE METAL–INSULATOR TRANSITION AT SEMICONDUCTOR SURFACES AND INTERFACES." Surface Review and Letters 06, no. 03n04 (1999): 411–33. http://dx.doi.org/10.1142/s0218625x99000421.

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The aim of this paper is to present a general perspective of the different correlation effects appearing at semiconductor surfaces and interfaces. The unifying theoretical picture is the generalized Hubbard Hamiltonian. In a first step, we show how such Hamiltonians can be analyzed using both a local density approach and many-body techniques. This discussion shows how to determine the different electron–electron interaction parameters appearing in the generalized Hubbard Hamiltonian, from a set of restricted LDA calculations for the full surface. Then, different surfaces and interfaces are ana

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Heinz, Hendrik, Kshitij C. Jha, Jutta Luettmer-Strathmann, Barry L. Farmer, and Rajesh R. Naik. "Polarization at metal–biomolecular interfaces in solution." Journal of The Royal Society Interface 8, no. 55 (2010): 220–32. http://dx.doi.org/10.1098/rsif.2010.0318.

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Metal surfaces in contact with water, surfactants and biopolymers experience attractive polarization owing to induced charges. This fundamental physical interaction complements stronger epitaxial and covalent surface interactions and remains difficult to measure experimentally. We present a first step to quantify polarization on even gold (Au) surfaces in contact with water and with aqueous solutions of peptides of different charge state (A3 and Flg-Na3) by molecular dynamics simulation in all-atomic resolution and a posteriori computation of the image potential. Attractive polarization scales

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Shi, Linquan, and Qiang Li. "Numerical simulation and experimental study of contact thermal resistance under high temperature conditions." Thermal Science and Engineering 5, no. 1 (2022): 1. http://dx.doi.org/10.24294/tse.v5i1.1523.

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Contact thermal resistance is an important indicator of the efficiency of heat transfer between contact interfaces.The contact thermal resistance between the interfaces of superalloy GH4169 in high temperature was investigated byusing ANSYS. The real surface morphology of superalloy was obtained with optical microscope, and its surface modelwas reconstructed in ANSYS. Based on the theory of structural mechanics, the elastoplastic deformation of the microstructure of the contact interface is simulated, and analyzed and obtained the contact thermal resistance between contactinterfaces. The effec

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Pitanga, Heraldo Nunes, Orencio Monje Vilar, and Jean-Pierre Gourc. "Wear resistance of geosynthetic interfaces constituted by geomembranes and geospacers." Rem: Revista Escola de Minas 66, no. 2 (2013): 227–32. http://dx.doi.org/10.1590/s0370-44672013000200014.

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This article presents the results of an experimental study which aimed to evaluate the effect of surface wear on the friction properties of geosynthetic interfaces constituted of geomembranes and geospacers. The tests were performed in ramp test device, and the results showed the different sensitivities of the interfaces to the wear process. For the particular types of interfaces considered in the experiment, the surface wear can increase, decrease or maintain the original friction properties of the geosynthetic interface, with direct effects on the stability under service condition.

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Alvarado, Omar, Gonzalo R. Quezada, Jorge H. Saavedra, Roberto E. Rozas, and Pedro G. Toledo. "Species Surface Distribution and Surface Tension of Aqueous Solutions of MIBC and NaCl Using Molecular Dynamics Simulations." Polymers 14, no. 10 (2022): 1967. http://dx.doi.org/10.3390/polym14101967.

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Methyl isobutyl carbinol (MIBC) is a high-performance surfactant with unusual interfacial properties much appreciated in industrial applications, particularly in mineral flotation. In this study, the structure of air–liquid interfaces of aqueous solutions of MIBC-NaCl is determined by using molecular dynamics simulations employing polarizable and nonpolarizable force fields. Density profiles at the interfaces and surface tension for a wide range of MIBC concentrations reveal the key role of polarizability in determining the surface solvation of Cl− ions and the expulsion of non-polarizable Na+

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Yao, Qizhou, and Jianmin Qu. "Interfacial Versus Cohesive Failure on Polymer-Metal Interfaces in Electronic Packaging—Effects of Interface Roughness." Journal of Electronic Packaging 124, no. 2 (2002): 127–34. http://dx.doi.org/10.1115/1.1459470.

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Debonding of polymer-metal interfaces often involves both interfacial and cohesive failure. Since the cohesive strength of polymers is usually much greater than the polymer-metal interfacial strength, cohesive failure near the interface is usually desired for enhancing the interfacial adhesion. Roughened surfaces generally produce more cohesive failure; therefore, they are used commonly in practice to obtain better adhesion. This paper develops a fracture mechanics model that can be used to quantitatively predict the amount of cohesive failure once the surface roughness data are given. An epox

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Kim, Jaehyeon, Fujia Zhao, Shan Zhou, Kaustubh S. Panse, and Yingjie Zhang. "Probing Molecular Structures at Electrified Interfaces Using in-Situ Surface-Enhanced Raman Spectroscopy." ECS Meeting Abstracts MA2023-01, no. 46 (2023): 2495. http://dx.doi.org/10.1149/ma2023-01462495mtgabs.

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The molecular scale understanding of electrode-electrolyte interfaces is significant, as interfacial molecular structures play a critical role in determining various properties such as capacitance and catalytic activity. However, the limited understanding exists on the interfaces, especially at a molecular level, due to difficulties to selectively probe the interfaces without an interference from the bulk. In this talk, I will present our recent observations on molecular configurations at electrified interfaces using in-situ surface-enhanced Raman spectroscopy (SERS). To be specific, we study

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