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Water-soluble CdSe/ZnS quantum dots passivated by poly(glycino amino acid) phosphazenes ZHANG Teng(张 腾), YUAN Hui-ping(袁慧萍), SUO Hong-li(索红莉) Key Laboratory of Advanced Functional... in making water-soluble and biocompatible quantum dots (QDs) due to their wide variety of properties. The CdSe QDs of green emission and the core-shell CdSe/ZnS QDs of red emission were prepared......
°and the deviation of preferred orientation is about 30° for this selector. Key words: DZ417G alloy; high rapid solidification; crystal orientation; single crystal superalloy; spiral grain selector Cite... J. Cent. South Univ. (2018) 25: 1-8 DOI: https://doi.org/10.1007/s11771-018-3711-1 Effects of directional solidification parameters and crystal selector on microstructure of single crystal of Ni......
Rapid manufacture of Ni-based superalloy components by three-dimensional printing LIU Jian-xin(刘建新), H. A. KUHN ProMetal Division, The Ex One Company, 8075 Pennsylvania Avenue, Irwin, PA 15642, USA Received 28 July 2006; accepted 15 September 2006 Abstract: The challenge to rapid manufacturing high performance metal components is how to consolidate the uncompressed powder preforms to full......
) for rapid solidification of binary alloys was considered. The LNDM takes into account deviation from local equilibrium of solute concentration and solute flux fields in bulk liquid. The exact solutions... alloys; solute trapping; rapid solidification; local-nonequilibrium diffusion; hyperbolic diffusion equation; solute concentration; solute flux fields 1 Introduction Rapid solidification phenomena occur......
Commercial W Figure 1 shows the surface morphologies of the commercial W after irradiation by HIPIB. Obvious long cracks with a width of ~0.15 μm occur after single shot at the heat flux of 160 MW/(m2·s-1/2..., the total heat flux is rather low. Therefore, no obvious melting occurred in the commercial W under high heat flux for single and multiple shots. Fig. 1 SEM images of commercial W surfaces......
Non-dominated sorting quantum particle swarm optimization and its application in cognitive radio spectrum allocationGAO Hong-yuan(高洪元)1, CAO Jin-long(曹金龙)2(1. College of Information and Communication...)Abstract:In order to solve discrete multi-objective optimization problems, a non-dominated sorting quantum particle swarm optimization (NSQPSO) based on non-dominated sorting and quantum particle swarm......
Growth and characterization of ZnTe single crystal via a novel Te flux vertical Bridgman methodMin Jin1,Wen-Hui Yang2,Xiang-Hu Wang1,Rong-Bin Li1,Ya-Dong Xu2,Jia-Yue Xu31. College of Materials... id="ChDivSummary" name="ChDivSummary">In this work,an Ⅱ-Ⅵ group semiconductor zinc telluride(ZnTe) single crystal is prepared by a novel vertical Bridgman method using Te as flux.The initial mole ratio......
Superconducting Magnetic Flux Transformer at 77KRen Hongtao Xiao Ling He Qing and Li Jiazhang General Research Institute for Nonferrous Metals,Beijing 100088,P.R.China摘 要:<正> Superconducting Quantum InterferenceDevice(SQUID)magnetometer is a kind ofmagnetic flux sensor with high sensitivity,andtherefore can be used in geological prospectand......
Influence of rapid quenching on hydrogen storage characteristics of nanocrystalline Mg2Ni-type alloys ZHANG Yang-huan (张羊换)1, 2, ZHAO Dong-liang (赵栋梁)1, LI Bao-wei (李保卫)2, GUO Shi-hai (郭世海)1, QI... synthesized by rapid quenching technique. The microstructures of the as-cast and quenched alloys were characterized by XRD, SEM and HRTEM. The electrochemical hydrogen storage performances were......
Liquid phase separation of Cu-Cr alloys during rapid cooling SUN Zhan-bo(孙占波), WANG You-hong(王宥宏), GUO Juan(郭 娟) School of Science, Xi’an Jiaotong University, Xi’an 710049, China Received 10 November 2005; accepted 2 May 2006 Abstract:The ribbons of Cu-Cr alloys with high Cr content (15%-35%, mass fraction) were prepared by rapid solidification. The microstructures of solidified samples......
