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August 2012 Abstract: Nanometer Cu singly doped and Cu/Al co-doped nickel hydroxides were synthesized by ultrasonic-assisted precipitation method. Their crystal structure, particle size, morphology... electrode, respectively. Moreover, the proton diffusion coefficient of Cu/Al co-doped sample is 52.3% larger than that of Cu singly doped sample. Key words: nano-Ni(OH)2; ultrasonic-assisted precipitation......
Microstructure evolution and mechanical properties of ultrasonic-assisted soldering joints of 2024 aluminum alloys LI Yuan-xing, ZHAO Wei-wei, LENG Xue-song, FU Qiu-jiao, WANG Lei, YAN Jiu-chun State Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin 150001, China Received 16 September 2010; accepted 5 January 2011 Abstract: Ultrasonic-assisted......
Ultrasonic-assisted extraction of pectin from chaenomelesLI Xin-she(李新社), LIU Zheng-yan(刘争艳), LU Bu-shi(陆步诗) (Department of Biology and Chemistry Engineering, Shaoyang University, Shaoyang 422000... experiment and the orthogonal tests, the optimum extraction parameters are as follows: the solid-to-liquid ratio is 1:4 g/mL, the ultrasonic power is 320 W, the ultrasonic-assisted extraction temperature......
Trans. Nonferrous Met. Soc. China 22(2012) s793-s800 Rotary ultrasonic-assisted milling of brittle materials KUO Kei-lin1, TSAO Chung-chen2 1. Department of Vehicle Engineering, National Taipei... was evaluated and presented. Ultrasonic assisted milling results in the reduction of milling resistance, which leads to a greater process rate. Key words: rotary ultrasonic; ultrasonic assisted milling......
Trans. Nonferrous Met. Soc. China 22(2012) s764-s768 Ultrasonic-assisted vibration tapping using taps with different coatings Chung-chen TSAO1, Kei-lin KUO2 1. Tahua University of Science... of thread areas associated with fixed frequency (FF) and limited tracing frequency (LTF) ultrasonic-assisted vibration was presented using differently coated taps after tapping of Ti-6Al-4V alloys......
Aging Precipitation Characterics of Lead Frame Cu-Cr-Zr-Mg Alloy LI He-jun1,KANG Bu-xi2,DONG Qi-ming2,LIU Ping2,SU Jua-hua2 (1.Northwestern Polytechnical University, Xi'an China;2.Henan University..., 73%IACS and 106HV, 76%IACS, respectively. Aging precipitation was dealt with by transmission electronic microscope (TEM). At 470℃ aging for 4h the fine precipitation of an ordered compound CrCu2(Zr, Mg......
Kinetics of leaching refractory gold ores by ultrasonic-assisted electro-chlorinationPing Zhu1), Xin-jiong Zhang1), Kun-fang Li1), Guang-ren Qian1), and Ming Zhou2) 1) College of Environmental... by ultrasonic-assisted electro-chlorination. The effects of ultrasound time ratio, initial hydrochloric acid concentration and leaching temperature on the kinetic parameters were discussed......
MODELING OF STRAIN-INDUCED PRECIPITATION KINETICS IN Nb MICROALLOYED STEELS D. Wu1,C.M. Li2,X.G. Zhou1,Z.Li3,Z.Y. Liu1 (1.State Key Lab. of Rolling and Automation, Northeastern University, Shenyang...:On the basis of the thermodynamic calculation of precipitation and considering the effect of strain on the precipitation behavior and chemical composition (Si and Mn), the kinetics of precipitation......
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J. Cent. South Univ. Technol. (2008) 15: 622-626 DOI: 10.1007/s11771-008-0116-6 Effect of tetracarbon additives on gibbsite precipitation from seeded sodium aluminate liquor ZENG Ji-shu(曾纪术... and tetrahydrofurane on gibbsite precipitation from caustic seeded sodium aluminate liquor were investigated. The additive was charged into supersaturated seeded sodium aluminate liquor, then the precipitation ratio......
