Thermally Stimulated Currents in Sodium Silicate Glasses
Sodium-ion motion in three sodium silicate glasses and a sodium aluminosilicate glass was investigated by the thermally stimulated polarization (TSPC) and depolarization (TSDC) current techniques. The two TSDC peaks found in the sodium silicate glasses were attributed to localized sodium-ion movement around a nonbridging oxygen ion, a type of dipolar orientational polarization, and to a longer-range sodium motion leading to interfacial polarization at the immiscible phase boundaries. The high-temperature background (HTB) current corresponded to the sodium motion for dc conductivity and diffusion. The commonly observed dc absorption current was found to be related to the two TSDC peaks.
C. Hong and D. E. Day, "Thermally Stimulated Currents in Sodium Silicate Glasses," Journal of the American Ceramic Society, vol. 64, no. 2, pp. 61-68, Wiley-Blackwell, Feb 1981.
The definitive version is available at http://dx.doi.org/10.1111/j.1151-2916.1981.tb09577.x
Materials Science and Engineering
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© 1981 Wiley-Blackwell, All rights reserved.