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Effect of Rare Earths on Diffusion Coefficient and Transfer Coefficient of Carbon during Carburizing 刘志儒1,阎牧夫1 (1.School of Materials Science and Engineering, Harbin Institute of Technology,) Abstract:The diffusion coefficient of carbon in surface layer of steel-20 rare earth carburized at 880 ℃ and 900 ℃ for 8 h was calculated by substituting the measured layer depths into the diffusion......
Iron and Steel (Group;3.Department of Physical Chemistry,University of Science and Technology Beijing, Beijng 100083,China) Abstract:The influence of rare earths on the behavior of precipitation... little influence on the strength of microalloyed steel, but it can improve impact toughness effectively. Key words:metal materials; microalloyed steel; precipitation; properties; rare earths; [全文内容正......
kinetics, adsorption isotherm,separation and desorption of the SIR were also studied. Key words:task-specific ionic liquid; solid-liquid extraction; rare earths; [全文内容正在添加中] ...Solvent impregnated resin prepared using task-specific ionic liquids for rare earth separation CHEN Ji1,MA Jiutong2,JI Yang1,SUN Xiaoqi1 (1.State Key Laboratory of Rare Earth Resource Utilization......
Stimulation of Rare Earths in Quartz Optical Fiber Surface Metallization by Electroless Plating and Electroplating蒋柏泉,黄庆荣,彭健,张华,张书扬,王敏炜摘 要:This research aims to use several kind of rare earth oxides, such as Nd2O3, Yb2O3, Ce2O3 and La2O3, to improve the electroless plating and electroplating processes for surface metallization of quartz optical fiber......
Preparation and Thermal Stability of Phosphate System Protection Glasses Doped with Rare Earths孟献丰11. School of Material Science and Engineering,Jiangsu University摘 要:rare earth glass and improves the thermal stability finally. However, with the increasing of Sm2O3 content, the β increases firstly and then decreases......
temperature shows that the range of pyrolysis temperature is from 500~550 ℃. The catalytic action varies according to the contents of rare earths which are used to catalyze the decomposition of hydrogen peroxide. Key words:rare earths; molybdotungstovanadophosphoric heteropoly complexes; Keggin structure; actalytic cativity; [全文内容正在添加中] ......
;2.Department of Chemistry, South China Normal University, Guangzhou 510631, China) Abstract:Nine complexes of rare earths with 5-phenyl pyrazoline dithioformate, Na[RE(S2CNC9H9N)4xH2O (RE=La~Dy, Y, except... that they are 1∶1 electrolytes. Key words:rare earths; complexes; 5-pheny1 pyrazoline dithioformate; preparation,properties; [全文内容正在添加中] ......
in the traditional tire rubber, which indicate that the cross-linked rubber accelerated by the rare earth complex has good physical and dynamic mechanical properties by comparison. Key words:rare earths...Synthesis, Characterization and Vulcanizing Properties of Rare Earth Complexes with 2-Mercaptobenthiazole 罗远芳1,黄庙由1,韦凤仙2,章伟光2,张启交2 (1.Department of Polymer Material and Science, South China......
Influence of Rare Earths on High-Temperature Mechanical Properties of ZA-27 Alloys赵沛廉,赵兴国,赵浩峰摘 要:ZA27aloyposesesgoodmechanicalproperties,highwearresistanceandantifrictionperformance,especialyhashighertensilestrengthatroo...关键词:......
:rare earths; amorphous phase; polycrystalline phase; photocatalysis process; self-photo-sensitization photolysis; interband trap site; electron scavenger; [全文内容正在添加中] ...Visible-Light Excitated Photocatalytic Activity of Rare Earth Metal-Ion-Doped Titania 李萍1,袁春伟1,谢一兵1 (1.National Laboratory of Molecular & Biomolecular Electronics, Southeast University, Nanjing......