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HomeKey Engineering MaterialsKey Engineering Materials Vol. 537Preparation of NASICON Disk by Tape Casting and...

Preparation of NASICON Disk by Tape Casting and its CO₂ Sensing Properties

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Abstract:

In this work, NASICON-type disks with the formula, Na₃Zr₂Si₂PO₁₂ were prepared by non-aqueous tape casting method. The effect of the dispersant on the slurry viscosity was investigated, triethanolamine was found to be an effective dispersant for NASICON slurry. The correlation between the overall conductivity and the sintering conditions (temperature and time) for the NASICON disk was also studied. Green tapes were calcined at 900°C, 1000°C, 1100°C for 6h and 12h, respectively. Results revealed that the overall conductivity increased with the increasing of the sintering temperature and decreased with the increasing of the sintering time. The segregation of resistive monoclinic ZrO₂ phase was examined to have a negative effect on the overall conductivity. The CO₂ sensor using NASICON disk and Li₂CO₃-BaCO₃ complex thick film was fabricated and evaluated, the sensitivity was about 82.9 mV/decade at 450°C.

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Periodical:

Key Engineering Materials (Volume 537)

Pages:

134-139

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.537.134

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Online since:

January 2013

Authors:

Jian Guo Li, Xi Shuang Liang, Cheng Guo Yin, Feng Min Liu, Ge Yu Lu

Keywords:

CO₂ Sensor, Nasicon, Tape Casting

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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