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• Fine grain tungsten produced with nanoscale powder

  来源： 《International Journal of Minerals Metallurgy and Materials2005年第3期》——Tao Lin, Fang Zhao, Liying Zhang, Chengyi Wu, and Zhimeng Guo Materials Science and Engineering School, University of Science and Technology Beijing, Beijing , China

  , Beijing 100083, China摘 要:<正>Nanoscale tungsten powder was prepared by reducing nanoscale tungsten trioxide in hydrogen to WO2.90 and further to W powder. After compacted with a rubber die, the nanoscale tungsten powder was sintered in a high-temperature dilatometer to investigate its shrinkage process. The results show that the compact......

• Induction plasma spheroidization of tungsten and molybdenum powders

  来源： 《中国有色金属学报(英文版)2006年第1期》——蒋显亮 M.BOULOS

  processing of tungsten powder. Ultrafine powder formed on the surface of large particles. As shown in Fig.5, a higher chamber pressure results in more vapor condensation on the surface of tungsten... particles are spheroidized at the same powder feed rate under the same plasma spray condition although molybdenum has a lower melting point. A small fraction of tungsten is evaporized and condensed either......

• Effects of Heat-treatment on Microstructure and Magnetic Properties of Ba Ferrite Ultrafine Powders Prepared by Sol-gel

  来源： 《材料热处理学报2004年第5期》——ZHENG Jia-sheng Zhu Mei-wu KONG Xiao-dong

  ℃ separately corresponding to BaFe2O4 and BaFe12O19. There were three types of microstructures for Ba ferrite ultrafine powder specimen annealed at 800℃. For the specimens annealed at different temperatures...℃. The magnetic properties, σ s and H c of BaFe12O19ultrafine powders are different from that of BaFe12O19 bulk material.Key Words: Barium ferrite; ultrafine powder; microstructure; AFM; magnetic property 关键词......

• Hydrophobic aggregation of ultrafine kaolinite

  来源： 《中南大学学报(英文版)2008年第3期》——张晓萍 胡岳华 刘润清

  J. Cent. South Univ. Technol. (2008) 15: 368-372 DOI: 10.1007/s11771-008-0069-9 Hydrophobic aggregation of ultrafine kaolinite ZHANG Xiao-ping(张晓萍), HU Yue-hua(胡岳华), LIU Run-qing(刘润清) (School...;             Abstract: The hydrophobic aggregation of ultrafine kaolinite in cationic surfactant suspension was investigated......

• DEPENDENCE OF SINTERABILITY ON STATE OF AGGLOMERATION OF ULTRAFINE ZrO₂，（Y₂O₃）POWDERS

  来源： 《中国有色金属学报(英文版)1995年第3期》——Ge, Rongde Liu, Zhihong Chen, Huiguang Zhang, Duomo Zhao, Tiancong

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• Effect of process parameters on inductionplasma reactive deposition of tungstencarbide from tungsten metal powder

  来源： 《中国有色金属学报(英文版)2001年第5期》——蒋显亮 M.I.Boulos

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• 掺杂方法对W-1.0wt.%La₂O₃合金显微组织和力学性能的影响

  来源： 《中国有色金属学报(英文版)2020年第12期》——杨军军 陈刚 陈铮 母晓东 于瀛 章林 李星宇 曲选辉 秦明礼

  the ultrafine-grained W-1.0wt.%La2O3 alloys by pressureless sintering. Compared with pure tungsten, W-1.0wt.%La2O3 alloys exhibit ultrafine grains and excellent mechanical properties. After sintering... alloy via the liquid-liquid doping route, as compared with conventionally-manufactured tungsten materials. Key words: tungsten alloy; solution combustion synthesis; doping route; ultrafine grain......

• 超细钨粉的粒度表征

  来源： 《中国有色金属学报2002年第3期》——廖寄乔 黄伯云 王华

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• Preparation of ultrafine core-shell nickel spheres via self-sacrificial template

  来源： 《中国有色金属学报(英文版)2006年第5期》——刘曦 邓意达 沈彬 刘磊 胡文彬

  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......

• Characterization of ultrafine copper powder prepared bynovel electrodeposition method

  来源： 《中南大学学报(英文版)2009年第5期》——贺玮 段学臣 朱磊

  J. Cent. South Univ. Technol. (2009) 16: 0708-0712 DOI: 10.1007/s11771-009-0117-0 Characterization of ultrafine copper powder prepared by novel electrodeposition method HE Wei(贺 玮)1, 2, DUAN... the mass of the copper powder prepared, the current and the time of electrodepositon, respectively. 3 Results and discussion 3.1 X-ray diffraction investigation of ultrafine copper powder The auto......