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A Novel Approach For The Preparation Of Nanosized Gd2o3 Structure: The Influence Of Surface Force On The Morphology Of Ball Milled Particles, Ly B. T. La, Yee-Kwong Leong, Harry P. Watts, Pek-Ing Watts, Kevin Hayward, Laichang Zhang

Research outputs 2014 to 2021

This work investigates the effect of inter-particle forces arising from adsorbed typical cationic and anionic surfactants on the morphology of ball milled gadolinium oxide (Gd₂O₃). The experimental outcomes are interpreted in terms of stabilization and interaction mechanisms of fine washed Gd₂O₃ particles (size diameter <1 μm) in aqueous medium under the variation of surface forces arising of adsorbed surfactant. After ball milling and washing, the point of zero charge or isoelectric point (IEP) of Gd₂O₃ particles suspension is at pH 11 where its maximum yield stress is observed. Because of hydrophobic interaction, the maximum yield stress increases by 30 times by adsorbed sodium dodecyl sulfate (SDS) and its IEP shifts slightly to a lower pH. By cetyl trimethyl ammonium bromide (CTAB), …