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Huiping Shao,Yuqiang Huang,HyoSook Lee,Yong Jae Suh,Chong Oh Kim 한국물리학회 2006 Current Applied Physics Vol.6 No.1l
Cobalt nanoparticles with an average size of 26 nm were prepared by thermal decomposition of cobalt acetate at 325.C using PVP(polyvinylpyrrolidone) as a surface-protective reagent. According to the transmission electron microscopy images, the cobalt nanopar-by vibrating sample magnetometer showed that the coercive forceHc and saturated magnetizationM s were 277.4 Oe and 86.8 emu/g,respectively.
The Manufacture and Technology of the Ferrite Materials in China
YingLi,HuipingShao,Yu-QiangHuang 한국자원리싸이클링학회 2002 資源 리싸이클링 Vol.11 No.5
China is a large country for the production of magnetic materials because of its cheap price and abundant raw materials. The total yield of ferrite occupies about 20% fraction in the market of the world. In this report, the characteristics and the yield of the ferrite magnet produced in China were displayed. Also the distribution of manufacturers and research institutes and the Chinas 10th five-year-plan on the magnetic materials were reviewed.