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《Journal of University of Science and Technology Beijing》 2002-02
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Effects of Bridged Particles on the Compressibility of Nanometer Cemented Carbide Powder

ZHANG Liying, GUO Zhimeng, UN Tao, LI Wenxia, WU Chengyi, WU Qinghua Material Science and Engineering School, UST Beijing, Beijing 100083, China Chntop S&T Co Ltd, Beijing 100096  
By means of the mercurial barometer and pore size analyzer, the effects of bridged particles on the pore volume distribution in nano-meter cemented carbide powder and its compact were investigated. Also the apparent density, specific surface area and green density were studied before and after sedimentation sep- arating and high energy shear milling by BET specific surface area analyzer and SEM. The results show that there is more than one peak on pore volume distribution pattern because of the presence of bridged particles. The apparent density and green density can be greatly improved by high-energy milling.
【Fund】: 国家自然科学基金资助课题(No.50004001)
【CateGory Index】: TF124.5
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