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PREPARATION OF NANOSTRUCTURED TUNGSTEN POWDERS曹立宏,傅磊,樊友三摘 要:<正>The preparation of nanostructured tungstenpowders has been studied by using... temperature has been also discussed. The composition,particle size distribution and morphology of nanostructuredtungsten powders have been measured by X-ray diffraction,small angle X-ray scatter and TEM......
,Beijing 100083,China摘 要:<正>Three types of tungsten powders were prepared by hydrogen reduction of three precursor powders at low temperature,which were...),and field-emission scanning electron microscopy (FESEM) respectively. The results showed that although BET and SEM could not characterize the particle size of nanometer powders,they were important means......
J. Cent. South Univ. (2012) 19: 2434-2439 DOI: 10.1007/s11771-012-1293-x Preparation of titanium powders by calciothermic reduction of titanium dioxide WAN He-li(万贺利)1,2,3,4, XU Bao-qiang(徐宝强... for titanium powders production, a calciothermic reduction process of pigment titanium dioxide (w(TiO2)>98%), based on the preform reduction process (PRP), was investigated by means of XRD, SEM and EDS......
Trans. Nonferrous Met. Soc. China 22(2012) 2049-2056 Enhanced photocatalytic properties of hierarchical nanostructured TiO2 spheres synthesized with titanium powders TAO Jie1, DENG Jie1, DONG Xiang2... and NaOH concentration. The diameter of the nanoneedle spheres and nanoribbon spheres (40-50 μm) are almost the same as that of Ti powders. TiO2 nanoneedle/nanoribbon sphere powders are anatase after......
Preparation and Sinterability of Mn-Zn Ferrite Powders by Sol-Gel Method Wu Ze1,Han Zhidong1,Dong Limin1,Zhang Yaoming1,Zhang Xianyou1 (1.College of Materials Science and Engineering, Harbin... homogeneous. Sintering behaviors of synthesized ferrite powders depend on the powder characteristics and high temperatures have induced the good crystallization of particles. Key words:sol-gel; Mn-Zn......
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Development of copper coatings on molybdenum powders by electroless plating technique WANG Guang-jun(王光君), WANG De-zhi(王德志) Schools of Materials Science and Engineering, Central South University, Changsha 410083, China Received 15 July 2007; accepted 10 September 2007 Abstract: Mo powders with average particle size of 3 μm were attempted to coat with copper by electroless plating......