Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/2072
Title: The isoelectric point of lead magnesium niobate
Authors: Deliormanlı, Aylin M.
Çelik, Erdal
Polat, Mehmet
Keywords: Lead compounds
Isoelectric points
Lead magnesium niobate
Solids concentration
Actuators
Publisher: John Wiley and Sons Inc.
Source: Deliormanlı, A. M., Çelik, E., and Polat, M. (2007). The isoelectric point of lead magnesium niobate. Journal of the American Ceramic Society, 90(10), 3314-3317. doi:10.1111/j.1551-2916.2007.01871.x
Abstract: Lead magnesium niobate (PMN) is an important relaxor ferroelectric material commonly used in multilayer capacitor and actuator manufacturing owing to its high dielectric constant and superior electrostrictive properties. However, the isoelectric point of this material in water is not known and there is justification for a detailed investigation. In this work, the isoelectric point (IEP) of aqueous PMN suspensions were determined as a function of solids concentration. Results showed that IEP of the PMN suspensions strongly depended on the solids loading. The IEP was between pH 9 and 10 at particle concentrations between 10 to 20 vol%. The IEP shifted gradually to a lower pH value as the particle concentration decreased. Solubility experiments showed that Pb2+ and Mg2+ ions dissolved from the PMN surface, especially in the acidic pH range. The study provides a new insight on the aqueous stability of perovskite materials which possess more than one soluble cation in their structure.
URI: http://doi.org/10.1111/j.1551-2916.2007.01871.x
http://hdl.handle.net/11147/2072
ISSN: 0002-7820
0002-7820
1551-2916
Appears in Collections:Chemical Engineering / Kimya Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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