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Titelei

作者信息未提供1994-04-01Applied Rheology

Geometrical optics design and aberration analysis of a focusing grating coupler

Michel O. E. Laurijs1994-04-01Optical Engineering

The geometrical optics design of a focusing grating coupler (FGC) is discussed for the situation in which the shape of the guided and free-space pencil and the diffraction geometry are general. A function that describes the so-called optical path-length defect in a general point of the FGC yields the spatial frequency…

Photonic Crystal and Fiber OpticsPhotonic and Optical DevicesOptical Coatings and Gratings

Nucleation of trapezoidal kink pairs on a Peierls potential

Hirokazu Koizumi、H. O. K. Kirchner、Takayoshi Suzuki1994-04-01Philosophical magazine. A/Philosophical magazine. A. Physics of condensed matter. Structure, defects and mechanical properties

The activation energy ΔH∗ for forming a kink pair of trapezoidal shape in a dislocation in a Peierls potential is calculated by considering the long-range elastic interaction between the dislocation segments. The shapes and energies obtained in this three-parameter model closely resemble those obtained from the contin…

nanoparticles nucleation surface interactionsForce Microscopy Techniques and ApplicationsMicrostructure and mechanical properties

Electronic-structure-based pair potentials for aluminum-rich cobalt compounds

Rob Phillips、Jin Zou、A. E. Carlsson 等 4 位作者1994-04-01Physical review. B, Condensed matter

A method for calculating ``constant volume'' pair potentials in Al-rich transition-metal compounds is presented. The method is based on a combination of a Green's-function analysis of the interaction between transition-metal d shells, and a perturbative treatment of the Al and transition-metal pseudopotentials. In add…

Metallurgical and Alloy ProcessesQuasicrystal Structures and PropertiesSurface and Thin Film Phenomena

Ag Foil by XPS

Gar B. Hoflund、Jason F. Weaver、William S. Epling1994-04-01Surface Science Spectra

XPS data have been obtained from a polycrystalline Ag foil supplied by AESAR. Initial data indicates a highly contaminated surface region. The foil was heated to 250° C and then sputtered with a 2 keV beam of Ar+ for 35 min. Ion scattering spectroscopy, angle-resolved Auger electron spectroscopy, and x-ray photoelectr…

Catalytic Processes in Materials ScienceElectron and X-Ray Spectroscopy TechniquesX-ray Diffraction in Crystallography

Nanoscale Dimensional Changes and Optical Properties of Polyaniline Measured by In Situ Spectroscopic Ellipsometry

César A. Barbero、R. Kötz1994-04-01Journal of The Electrochemical Society

The thickness and optical properties of polyaniline films deposited on gold substrates by electropolymerization were determined using in situ spectroscopic ellipsometry. The polymer films were deposited by potential cycling in 0.1 M aniline/ 1 M H 2 SO 4 . For the simultaneous determination of optical properties and t…

Electrochemical Analysis and ApplicationsAnalytical Chemistry and SensorsConducting polymers and applications

Surface Property of Polymer Films with Fluoroalkyl Side Chains

Y. Katano、Hidenori Tomono、Tasuku Nakajima1994-04-01Macromolecules

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSurface Property of Polymer Films with Fluoroalkyl Side ChainsY. Katano, H. Tomono, and T. NakajimaCite this: Macromolecules 1994, 27, 8, 2342–2344Publication Date (Print):April 1, 1994Publication History Published online1 May 2002Published inissue 1 April 1994https://pubs.a…

Polymer Surface Interaction StudiesSurface Modification and SuperhydrophobicityElectron and X-Ray Spectroscopy Techniques

The Electrochemical Oxidation of Silicon and Formation of Porous Silicon in Acetonitrile

Eric K. Propst、Paul A. Kohl1994-04-01Journal of The Electrochemical Society

The photoelectrochemical oxidation and dissolution of silicon has been investigated in the absence of water and oxygen. The etch rate and photocurrent for n‐Si in an anhydrous, HF ‐ acetonitrile solution were directly proportional to light intensity. Four electrons were transferred per silicon oxidized, with a quantum…

Anodic Oxide Films and NanostructuresSemiconductor materials and devicesSilicon Nanostructures and Photoluminescence