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Citation: Chen Lei, Liu Zhong-Hai, Shen Lei, Bao Jun, Liu Wen-Han, Gao Chen. Ultrafine Nano Suspensions of Rare Earth Oxides Prepared by High-energy Ball Milling in Pure Water[J]. Acta Physico-Chimica Sinica, ;2004, 20(07): 722-726. doi: 10.3866/PKU.WHXB20040711 shu

Ultrafine Nano Suspensions of Rare Earth Oxides Prepared by High-energy Ball Milling in Pure Water

1.
Structure Research Laboratory, University of Science and Technology of China; National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei　230026

Received Date: 22 December 2003
Available Online: 15 July 2004

Rare-earth oxides Ln2O3(Ln=La, Ce) ultrafine nano suspensions in pure water were prepared by a high energy ball-milling technique. The effects of ball milling time and rotating speed on the stability of suspensions and particles structure were investigated. Increasing the ball-milling time and rotating speed is in favor of improving the stability of suspensions. The size, distribution and surface charge characteristics of particle in suspensions maybe the important factors for stability of suspensions. These suspensions have excellent stability, high concentration, high surface tension and low viscosity.
- Rare earth oxides;Ultrafine nano suspension;High-energy ball milling
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