نتایج جستجو برای: silicon carbide

تعداد نتایج: 86899  

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Recently, a series of three-component compounds with the combination of Mn+1AXn known as Max phases have been considered as a new material. One of the most important features of Max phases, is the self-healing property of them. The main reason for considering Max Phases is a unique collection of unusual properties including their metallic, ceramic, physical, and mechanical properties. One of th...

Journal: :Physical review letters 2007
Jon A Schuller Rashid Zia Thomas Taubner Mark L Brongersma

Silicon carbide particles exhibit both electric and magnetic optical resonances, allowing unexplored dielectric metamaterial designs. Experimental extinction spectra and Mie theory calculations of single microscale rod-shaped particles reveal three observable midinfrared resonant modes. Two of the modes are degenerate, with a frequency that can be tuned according to a resonance condition derive...

Journal: :Science 2006
Taisuke Ohta Aaron Bostwick Thomas Seyller Karsten Horn Eli Rotenberg

We describe the synthesis of bilayer graphene thin films deposited on insulating silicon carbide and report the characterization of their electronic band structure using angle-resolved photoemission. By selectively adjusting the carrier concentration in each layer, changes in the Coulomb potential led to control of the gap between valence and conduction bands. This control over the band structu...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2004
Hirotsugu Minami Masako Yada Tomomi Yoshida Qiangbin Zhang Sadanobu Inoue Ikuo Atsuya

A fast and accurate analytical method was established for the simultaneous direct determination of aluminum, calcium and iron in silicon carbide and silicon nitride powders by graphite furnace atomic absorption spectrometry using a slurry sampling technique and a Hitachi Model Z-9000 atomic absorption spectrometer. The slurry samples were prepared by the ultrasonication of silicon carbide or si...

In this research, the effect of addition of silicon carbide (SiC) nanoparticles on the improvement of the structural, superconductivity, magnetic, and flux pinning properties of high-temperature superconductor Bi1.6Pb0.4Sr2Ca2Cu3O10+θ (Bi-2223) was investigated. The Bi-2223 ceramic superconductor was prepared using the sol-gel method, and silicon carbide nanoparticles were modified by Azobisiso...

Journal: :Journal of nanoscience and nanotechnology 2008
Deepak Srivastava Maxim A Makeev Madhu Menon Mohamed Osman

Representative results of computer simulation and/or modeling studies of the nanomechanical and thermal transport properties of an individual carbon nanotube, silicon nanowire, and silicon carbide nanowire systems have been reviewed and compared with available experimental observations. The investigated nanomechanical properties include different elastic moduli of carbon nanotubes, silicon nano...

2007
J. B. O. Caughman F. W. Baity M. A. Akerman S. C. Forrester

Sintering with low frequency rf power (-50 M H z ) is a new technique with unique capabilities that has been used to sinter a variety of ceramic materials, including zirconia-toughened alumina, alumina, silicon carbide, and boron carbide. Processing with low frequencies offers many advantages compared to processing with conventional microwave frequencies (915 MHz and 2.45 GHz). Because of the l...

2009
Ning Zhang

of the Thesis Characterization of Dislocations Structures and Properties in Silicon Carbide Bulk Crystals and Epilayers

2012
Dominik Szczȩśniak Antoine Khater Zygmunt Ba̧k Radosław Szczȩśniak Michel Abou Ghantous

Unknown quantum electronic conductance across nanojunctions made of silicon-doped carbon wires between carbon leads is investigated. This is done by an appropriate generalization of the phase field matching theory for the multi-scattering processes of electronic excitations at the nanojunction and the use of the tight-binding method. Our calculations of the electronic band structures for carbon...

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