Please use this identifier to cite or link to this item:
https://hdl.handle.net/11147/2109
Title: | Effect of pH and hydration on the normal and lateral interaction forces between alumina surfaces | Authors: | Polat, Mehmet Sato, Katsuya Nagaoka, Takaaki Watari, Koji |
Keywords: | Atomic force microscopy Colloids Force curve Force measurement; Hydration pH effects Surface measurement Alumina |
Issue Date: | Dec-2006 | Publisher: | Elsevier Ltd. | Source: | Polat, M., Sato, K., Nagaoka, T., and Watari, K. (2006). Effect of pH and hydration on the normal and lateral interaction forces between alumina surfaces. Journal of Colloid and Interface Science, 304(2), 378-387. doi:10.1016/j.jcis.2006.08.058 | Abstract: | Interaction forces between alumina surfaces were measured using an AFM-colloid probe method at different pHs. For an α-alumina-sapphire system at acidic pH, the force curve exhibited a well-defined repulsive barrier and an attractive minimum. At basic pH, the interactive force was repulsive at all separations with no primary minimum. Lateral force measurements under the same conditions showed that frictional forces were nearly an order of magnitude smaller at basic pH than those observed at acidic pH. This behavior was attributed to the hydration of the alumina surface. Normal and lateral force measurements with the strongly hydrated ρ-alumina surfaces supported these findings. | URI: | https://doi.org/10.1016/j.jcis.2006.08.058 http://hdl.handle.net/11147/2109 |
ISSN: | 0021-9797 0021-9797 |
Appears in Collections: | Chemical Engineering / Kimya Mühendisliği PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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