First-principles prediction of stable SiC cage structures and their synthesis pathways

نویسندگان

  • Pascal Pochet
  • Luigi Genovese
  • Damien Caliste
  • Ian Rousseau
  • Stefan Goedecker
  • Thierry Deutsch
چکیده

Pascal Pochet,1,* Luigi Genovese,2,† Damien Caliste,1 Ian Rousseau,1 Stefan Goedecker,3 and Thierry Deutsch1 1Laboratoire de Simulation Atomistique (L_Sim), SP2M, INAC, CEA-UJF, 17 Av. des Martyrs, 38054 Grenoble, France 2European Synchrotron Radiation Facility, 6 rue Horowitz, BP 220, 38043 Grenoble, France 3Institut für Physik, Universität Basel, Klingelbergstr. 82, 4056 Basel, Switzerland Received 3 March 2010; revised manuscript received 15 June 2010; published 21 July 2010

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Shedding light on the self-assembly of stable SiC based cage nanostructures: A comprehensive molecular dynamics study

A comprehensive molecular dynamics study to shed light on the existence of SiC based cage nanostruc-tures Si m C n , together with their stability, structural and other properties, in the range of compositions with n/(n + m) from 0.4 to 0.6 has been carried out using an efficient semi-empirical Hamiltonian scheme. Through this study, a series of self-assembled stable (even up to 2000 K) SiC bas...

متن کامل

SiC Cage Like Based Materials

SiC is a compound of silicon and carbon with a chemical formula SiC. Silicon carbide(SiC) as a material is the most promising for applications in which high-temperature, high-power, and high-frequency devices, catalyst support, high irradiation environments are needed. Naturally occurring SiC is found only in poor quantities that explains the considerable effort made in the industrial SiC engin...

متن کامل

First-principles calculations of metal stabilized Si20 cages

It is well known that sp bonding in carbon can result in stable cage structures, but pure Si clusters with similar cage structures are unstable. Using first-principles calculations, we show that a dodecahedral cage of silicon can be stabilized dynamically as well as energetically by doping with Ba, Sr, Ca, Zr, and Pb atoms to create structures of silicon similar to that of the smallest carbon f...

متن کامل

Synthesis and Sintering of Ti3SiC2–SiC Composites through Reactive Hot-Pressing of TiC and Si Precursors

MAX phases are an attractive class of layered solids that have recently attracted a great deal of attention due to their unusual and unique composition. The ternary compound Ti3SiC2 is an example of a material that combines the properties of ceramics and metals. As a ceramic, they are high stiff. Some of them are resistant to oxidation, creep, fatigue, corrosion. They are extremely refractory a...

متن کامل

Prediction of Secondary Structure of Citrus Viroids Reported from Southern Iran

Abstract Viroids are smallest, single-stranded, circular, highly structured plant pathogenic RNAs that do not code for any protein. Viroids belong to two families, the Avsunviroidae and the Pospiviroidae. Members of the Pospiviroidae family adopt a rod-like secondary structure. In this study the most stable secondary structures of citrus viroid variants that reported from Fars province wer...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2010