Iranian Journal of Ceramic Science & Engineering
Volume 3, Issue 1 (6-2014)
2014, 3(1): 0-0 |
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An investigation of the effect of temperature on viscosity and electrical conductivity of a copper enamel. Iranian Journal of Ceramic Science & Engineering 2014; 3 (1)
URL: http://ijcse.ir/article-1-196-en.html
URL: http://ijcse.ir/article-1-196-en.html
Abstract: (6582 Views)
The purpose of this study is the investigation of viscosity behavior and electrical conductivity of a copper enamel based on lead borosilicate. By using the dilatometeric measurements the characteristic temperatures of Tg (log η= 1012 Pa.s) and Ts (log η= 109.25 Pa.s) obtained for the enamel (glaze) were found 478.6 and 523.9 °C respectively . Hot stage microscopy observations shows half sphere condition of the enamel around 800°C which correspond to a viscosity of log η= 103.55 Pa.s. By using of these three obtained values and VFT equation, the dependency of viscosity verses temperature is investigated. Electrical conductivity of 10-8 Ω-1.cm-1 was calculated at 335°C for the enamel.
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