国家自然科学基金(U1204501)

作品数:3被引量:3H指数:1
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相关作者:陈东余本海仓玉萍罗永松更多>>
相关机构:信阳师范学院更多>>
相关期刊:《物理学报》《Chinese Journal of Chemical Physics》更多>>
相关主题:FIRST-PRINCIPLES氮化物光学性质新相密度泛函理论研究更多>>
相关领域:理学更多>>
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Insights into Elastic and Thermodynamics Properties of Binary Intermetallics in Ni-AI Alloys under Extreme Condition: Full-Electronic Quasi-Harmonic Study
《Chinese Journal of Chemical Physics》2014年第4期399-406,J0001,共9页罗永松 仓玉萍 陈东 
V. ACKNOWLEDGEMENTS This work was supported by the National Natural Science Foundation of China (No.U1204501, No.11304141, No.11105115). We thank Prof. Alberto Qtero-de-laRoza and his colleague for the FEQHA model (Gibbs2 code). We also acknowledge Prof. M. A. Blanco and his co-workers for their QHD model (Gibbs code).
Atomistic modeling based on the accurate first-principles method is used to investigate the lattice parameter, elastic constant, elastic modulus including bulk modulus (B) and shear modulus (G), Poisson's ratio, ...
关键词:FIRST-PRINCIPLES Heat capacity Bulk modulus Debye approximation 
用密度泛函理论研究氮化硅新相的电子结构、光学性质和相变被引量:3
《物理学报》2014年第4期260-265,共6页余本海 陈东 
国家自然科学基金(批准号:U1204501;11105115;11304141);河南省科技计划(批准号:112300410021);河南省教育厅科学技术研究重点项目(批准号:12A140010)资助的课题~~
运用第一性原理赝势方法,对氮化硅新相(六方Pˉ6和Pˉ6′相)的电子结构、光学性质和相变过程进行分析,研究能带结构、介电函数谱、反射谱和能量损失函数的变化机理.研究发现,β→Pˉ6→δ相变是可行的,在室温下β→Pˉ6和Pˉ6→δ相变...
关键词:密度泛函理论 氮化物 光学性质 能带 
Theoretical Study on the High-Temperature P6 and P6' Phases of Si3N4: A Tool to Aid in Ceramics Development
《Chinese Journal of Chemical Physics》2014年第1期103-108,I0004,共7页余本海 陈东 
ACKNOWLEDGMENTS This work was supported by the National Natural Science Foundation of China (No.U1204501, No.11105115, and No.11304141), the Project of Basic and Advanced Technology of Henan Province of China (No.112300410021), and the Key Project of Henan Ed- ucational Committee (No.12A140010). The authors are grateful to Prof. M. A. Blanco from the Departamento de Qufmica Ffsicay Analitica, Faculatad de Qufmica, Universidad de Oviedo for the Gibbs code.
Atomistic modeling based on the density functional theory combined with the quasi-harmonic approximation is used to investigate the lattice parameters and elastic moduli of the P6 and P6' phases of Si3N4. β-Si3N4 is...
关键词:FIRST-PRINCIPLES Nitrides BRITTLENESS Phase diagram 
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