The need for sustainable solutions to reduce the carbon footprint of the ceramics and glass industry leads towards the development of new electric current-assisted technologies. Flash sintering-like processes in glasses allow a reduction of the softening temperature and could pave the way for new shaping technologies. Herein, we investigated the flash transition in soda-lime silicate glass using two different electrode materials, silver, and platinum. The high dielectric strength registered on samples tested with platinum electrodes undergoes a significant reduction when silver is used. In other words, in the case of silver electrodes, the flash ignition takes place at a lower onset field. Moreover, the Joule heating developed during the process can be turned from being highly inhomogeneous with Pt electrodes to homogeneous when Ag electrodes are used.

Electrode Material Effect on the Flash Ignition in Soda-Lime Silicate Glass / Cipriani, Mattia; Sglavo, Vincenzo M.; Sorarù, Gian Domenico; Biesuz, Mattia. - In: CERAMICS. - ISSN 2571-6131. - 2021, 4:1(2021), pp. 70-82. [10.3390/ceramics4010007]

Electrode Material Effect on the Flash Ignition in Soda-Lime Silicate Glass

Cipriani, Mattia;Sglavo, Vincenzo M.;Sorarù, Gian Domenico;Biesuz, Mattia
2021

Abstract

The need for sustainable solutions to reduce the carbon footprint of the ceramics and glass industry leads towards the development of new electric current-assisted technologies. Flash sintering-like processes in glasses allow a reduction of the softening temperature and could pave the way for new shaping technologies. Herein, we investigated the flash transition in soda-lime silicate glass using two different electrode materials, silver, and platinum. The high dielectric strength registered on samples tested with platinum electrodes undergoes a significant reduction when silver is used. In other words, in the case of silver electrodes, the flash ignition takes place at a lower onset field. Moreover, the Joule heating developed during the process can be turned from being highly inhomogeneous with Pt electrodes to homogeneous when Ag electrodes are used.
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Cipriani, Mattia; Sglavo, Vincenzo M.; Sorarù, Gian Domenico; Biesuz, Mattia
Electrode Material Effect on the Flash Ignition in Soda-Lime Silicate Glass / Cipriani, Mattia; Sglavo, Vincenzo M.; Sorarù, Gian Domenico; Biesuz, Mattia. - In: CERAMICS. - ISSN 2571-6131. - 2021, 4:1(2021), pp. 70-82. [10.3390/ceramics4010007]
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11572/294450
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