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Characterization and dielectric properties of sodium fluoride doped talc

Published online by Cambridge University Press:  27 February 2018

S. Gümüştas ,
K. Köseoğlu ,
E. E. Yalçinkaya  and
M. Balcan
S. Gümüştas
Affiliation:
Ege University, Faculty of Science, Chemistry Department, Bornova/Izmir, 35100, Turkey
K. Köseoğlu
Affiliation:
Ege University, Vocational School, Ceramic Department, Bornova/Izmir, 35100, Turkey
E. E. Yalçinkaya*
Affiliation:
Ege University, Faculty of Science, Chemistry Department, Bornova/Izmir, 35100, Turkey
M. Balcan
Affiliation:
Ege University, Faculty of Science, Chemistry Department, Bornova/Izmir, 35100, Turkey
*
*E-mail: esra.evrim.saka@ege.edu.tr
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Abstract

The purpose of this paper is to determine the effect of NaF and firing temperature on the dielectric properties (dielectric constant and dielectric loss) of talc, which is used in the electrical and electronic industries as a circuit element. A detailed characterization of the samples was made by XRD, FTIR, SEM and TG-DTG methods. Dielectric measurements were performed in the frequency range from 1 MHz to 80 MHz at room temperature. The dielectric constant value increased with an increase in firing temperature due to the removal of polarizable compounds from the talc structure. The higher dielectric constant values were obtained by addition of NaF. The dielectric loss of NaF doped talc decreased with the increase of firing temperature and increased with the increase of the amount of NaF.

Keywords

dielectric propertiestalcfiring temperatureNaF doping
Type
Research Article
Information
Clay Minerals , Volume 49 , Issue 4 , September 2014 , pp. 551 - 558
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2014

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References

Bertın, D., Boutevın, B., Rıgal, G. & Fourty, G. (1998) Study of talc-additive interactions by combined TGA-FTIR system. European Polymer Journal, 34, 163–170.Google Scholar
Bobe, J.M., Reau, J.M., Senegas, J. & Poulain, M. (1997) Ion conductivity and diffusion in ZrF4-based fluoride glasses containing LiF (0≤x LiF≤0.60). Journal of Non-Crystalline Solids, 209, 122–136.Google Scholar
Ersoy, B., Dikmen, S., Yıldız, A., Gören, R. & Elitok, Ö. (2013) Mineralogical and physicochemical properties of talc from Emirdağ , Afyonkarahisar, Turkey. Journal of Earth Sciences, 22, 632–644.Google Scholar
Ewell, R.H., Bunting, E.N. & Geller, R.F. (1935) Thermal decomposition of talc. Journal of Research of the National Bureau of Standards, 15, 551–556.Google Scholar
Farmer, V.C. (1974) The layer silicates. Pp 331–363 in: The Infrared Spectra of Minerals (V.C. Farmer, editor). Mineralogical Society, London.Google Scholar
Grim, R.E. (1968) Clay Mineralogy. 2nd edition. McGraw-Hill Inc: New York.Google Scholar
Gunasekaran, S. & Anbalagan, G. (2007) Thermal decomposition of natural dolomite. Bulletin of Materials Science, 30, 339–344.Google Scholar
Hausner, H.H. & Gunzenhauser, A. (1948) Steatite becomes a major ceramic with a big future. Ceramics International, 51, 90–91.Google Scholar
Kaviratna, P.D., Pinnavaia, T.J. & Schroeder, P.A. (1996) Dielectric properties of smectite clays. Journal of Physics and Chemistry of Solids, 57, 1897–1906.Google Scholar
Kırak, A., Yılmaz, H., Guler, S. & Guler, C. (1999) Dielectric properties and electric conductivity of talc and doped talc. Journal of Physics D: Applied Physics, 32, 1919–1927.Google Scholar
Kumar, K.K. & Sirdeshmukh, L. (1996) Dielectric properties and electrical conductivity studies on some minerals. Indian Journal of Pure Applied Physics, 34, 559–565.Google Scholar
MacKenzie, K.J.D. & Meinhold, R.H. (1994) The thermal reactions of talc studied by 29Si and 25Mg MAS NMR. Thermochimica Acta, 244, 195–203.Google Scholar
Mehrotia, V. & Giannelis, E.P. (1992) Dielectric response of complex layered oxides: mica-type silicates and layered double hydroxides. Journal of Applied Physics, 72, 1039–48.Google Scholar
Piga, L., Villieras, F. & Yvon, J. (1992) Thermogravimetric analysis of a talc mixture Thermochimica Acta, 211, 155–162.Google Scholar
Reau, J.M., Senegas, J., Rojo, J.M. & Poulain, M. (1990a) Transport properties of ZrF4-BaF2-LaF3-AF (A = Li, Na) glasses. Journal of Non-Crystalline Solids, 116, 175–178.Google Scholar
Reau, J.M., Kahnt, H. & Poulain, M. (1990b) Ionic transport studies in mixed alkali-fluorine conductor glasses of composition ZrF4-BaF2-LaF3-AF (A = Li, Na) and ZrF4-BaF2-ThF4-LiF. Journal of Non-Crystalline Solids, 119, 347–350.Google Scholar
Reau, J.M., Jun Xu, Y., Senegas, J., Ledeit, C. & Poulain, M. (1997) Influence of network modifiers on conductivity and relaxation parameters in some series of fluoride glasses containing LiF. Solid State Ionics, 95, 191–199.Google Scholar
Sadler Research Lab. Inc. (1965) DTA Inorganics pick no: 1700D.Google Scholar
Sawada (2008) Dielectric process of space-charge polarization for an electrolytic cell with blocking electrodes. Journal of Chemical Physics, 129, 064701.Google Scholar
Schroeder, P.A. (2002) Infrared spectroscopy in clay science: In: Clay Mineral Society Workshop Lectures, Teaching Clay Science. Aurora: Colorado.Google Scholar
Sural, M. & Ghosh, A. (1998) Electrical conductivity and conductivity relaxation in ZrF4-BaF2-YF3-LiF glasses. Journal of Physics, Condensed Matter, 10, 577–586.Google Scholar
Sural, M. & Ghosh, A. (1999) Conductivity and relaxation in ZrF4-BaF2-YF3-LiF glasses: effect of substitution of BaF2 by LiF. Solid State Ionics, 126, 315–321.Google Scholar
Takahashi, N., Tanaka, M., Satoh, T. & Endo, T. (1994) Study of synthetic clay minerals. III. Synthesis and characterization of two dimensional talc. Bulletin of the Chemical Society of Japan, 67, 2463–2467.Google Scholar
Wang, J. & Somasundaran, P. (2005) Absorption and conformation of carboxymethylcellulose at solidliquid interfaces using spectroscopic, AFM and allied techniques. Journal of Colloid and Interface Science 291, 75–83.Google Scholar
Wesołowski, M. (1984) Thermal decomposition of talc: A review. Thermochimica Acta, 78, 395–421.Google Scholar
Yalçın, H. & Bozkaya, Ö. (2006) Mineralogy and geochemistry of Paleocene ultramafic- and sedimentary- hosted talc deposits in the southern part of the Sivas Basin, Turkey. Clays and Clay Minerals, 54, 333–350.Google Scholar
Zıpkın, H., Israel, L., Guler, S. & Guler, C. (2007) Dielectric properties of sodium fluoride added kaolinite at different firing temperatures. Ceramics International, 33, 663–667.Google Scholar