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performance of ultrafine silver powder WEI Li-li1, XU Sheng-ming1, 2, XU Gang1, CHEN Song-zhe1, LI Lin-yan1 (1. Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China; 2. State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China) Abstract: The preparation of ultrafine silver powder was investigated by reducing Ag(NH3)2......
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Preparation of ultrafine core-shell nickel spheres via self-sacrificial template LIU Xi(刘 曦), DENG Yi-da(邓意达), SHEN Bin(沈 彬), LIU Lei(刘 磊), HU Wen-bin(胡文彬) State Key Laboratory of Metal Matrix..., is used to fabricate ultrafine core-shell nickel spheres. The size distribution, morphology, chemical and catalyzed properties of the synthesized spheres can be controlled by regulating the preparation......
saturation and coercivity of the ultrafine cemented carbide, the ultrafine cemented carbide was fabricated according to conventional powder metallurgical procedures, and then brazed to the stainless...Brazing behavior of ultrafine cemented carbide with stainless steelYANG Tian-en(杨天恩), YANG Li(杨力), XIONG Ji(熊计), SUN Lan(孙兰), GUO Zhi-xing(郭智兴), ZHENG Xiao-ming(郑晓鸣) (School of Manufacturing Science......
of ultrafine metal particles by gas-evagaration [J]. Japan J Appl Phys, 1980, 19(9): 1603-1610. [4] LIU Hua-rong, GE Xue-wu, NI Yong-hong. Synthesis and characterization of polyacrylonitrile-silver... and electric conductivity of ultrafine silver particles with polymer-protected colloidal dispersions [J]. Journal of East China University of Science and Technology, 1995, 21(4): 428-434. [11] GUO Guang......
Preparation of ultrafine nickel powder by wet chemical process CHEN Rui-ying(陈瑞英), ZHOU Kang-gen(周康根) School of Metallurgical Science and Engineering, Central South University, Changsha 410083... with narrow size distribution. Key words: ultrafine nickel powder; chemical reduction; tap density; multiplayer ceramic capacitor 1 Introduction Driven towards smaller size, higher capacitance and lower......
J. Cent. South Univ. Technol. (2007)06-0773-06 DOI: 10.1007/s11771-007-0147-4 Effect of anions on preparation of ultrafine α-Al2O3 powder XIAO Jin(肖 劲)1, QIN Qi(秦 琪)1... granularity distribution in the particle size range of 2-3 μm. Key words: α-Al2O3; ultrafine powder; homogeneous precipitation; anion; mutual compound 1 Introduction Ultrafine alumina, with excellent......
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