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Abstract: The electronic structure and optical properties of novel Na-hP4 high pressure phase at different pressures (260, 320, 400 and 600 GPa) were investigated by the density functional theory (DFT... at different pressures. Key words: first principles; novel Na-hP4 phase; high pressure phase; density functional theory; electronic structure; optical properties 1 Introduction At ambient conditions......
High density stacking faults of ■ compression twin in magnesium alloysBo Zhou,Manling SuiBeijing Key Laboratory of Microstructure and Properties of Solids, Institute of Microstructure and Properties of Advanced Materials, Beijing University of Technology摘 要:■ compression twins with high density stacking faults were studied at atomic scale using......
better high temperature oxidation resistance. The phases distribution of oxidation scale from the outside to the inside is SiO2→Mo5Si3→MoSi2. Key words: MoSi2; relative density; diffusion; oxidation... density at high temperature of 700-1 200 ℃ [J]. Chinese Journal of Rare Metals, 2007, 31(1): 18-21.(in Chinese) [11] ZHANG Fang, ZHANG Lan-ting, SHAN Ai-dang, WU Jian-sheng. Oxidation......
Analysis of density and mechanical properties of high velocity compacted iron powderJianzhong WANG,Haiqing YIN and Xuanhui QU State Key Laboratory for Advanced Metals and Materials,School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China摘 要:A new method for producing higher density PM parts,high......
and Engineering, Nanchang Institute of Aeronautical Technology, Nanchang 330034, China) Abstract: Three kinds of nano-crystalline high density alloys(86W-7Ni-3Fe-4Mo, 90W-4Ni-2Fe-4Mo... reach above 96%,and 90W-4Ni-2Fe-3.8Mo-0.2RE alloy possesses the best integrated properties, its hardness is HRC35 and its relative density is 98%. Key words: tungsten high density alloys; nano......
~(-2) . A further increase in current density results in smaller particles with high porosity. EDS and XRD analyses have shown that the PbO_2 deposited in alkaline conditions is highly non stoichiometric, and the PbO impurities are formed on the surface layer besides the α-PbO_2. The corrosion resistance of α-PbO_2 at the low current density is superior to that of the high current density. It can......
Lithium-ion full cell with high energy density using nickel-rich LiNi0.8Co0.1Mn0.1O2 cathode and SiO-C composite anodeAzhar Iqbal,Long Chen,Yong Chen,Yu-xian Gao,Fang Chen,Dao-cong LiInstitute of Engineering Research, Hefei Guoxuan High-Tech Power Energy CO., Ltd摘 要:A high-energy-density Li-ion battery with excellent rate capability and long cycle life......
Luminescent properties of Tb3+ doped high density borogermanate scintillating glasses钱珊,黄立辉,赵士龙,徐时清College of Materials Science and Engineering,China Jiliang University摘 要:Tb3+-doped high density borogermanate glasses were prepared by melt-quenching method. Their physical and luminescent properties including differential thermal analysis(DTA), density......
Luminescent properties of Tb3+ doped high density borogermanate scintillating glasses钱珊,黄立辉,赵士龙,徐时清College of Materials Science and Engineering,China Jiliang University摘 要:Tb3+-doped high density borogermanate glasses were prepared by melt-quenching method. Their physical and luminescent properties including differential thermal analysis(DTA), density......
that as coverage increases, S-Mg and C-Mg interaction weakens. Keywords: adsorption; chemisorptions; density function theory; generalized gradient approximation; high coordinate; charge density 1 Introduction... and Engineering, Shanghai Jiaotong University, Shanghai 200030,China Received 10 April 2006; accepted 25 April 2006 Abstract: First-principle calculations based on density functional theory were used......