Naslov
Zirconium titanate ceramics for humidity sensors synthesized by sol-gel process

Autori
Macan, Jelena ; Gajović, Andreja ; Dekanić, Daniela ; Ivanković, Hrvoje

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the 10th International Conference of the European Ceramic Society / Heinrich, J.G., Aneziris, C.G. - Baden-Baden : Goeller Verlag GmbH, 2007, 866-870

ISBN
3-87264-022-4

Skup
10th International Conference and Exhibition of the European Ceramic Society

Mjesto i datum
Berlin, Njemačka, 17.06.2007. - 21.06.2007

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
porosity; sensors; sintering; sol-gel process; zirconium titanate

Sažetak
Zirconium titanate, ZrTiO_4 was synthesized by sol-gel method from zirconium butoxide and titanium isopropoxide. Amorphous ZrTiO_4 powder was ground to under 0.8 mm, calcined at 500 °C, and milled to homogenise size distribution of the powder. Milled powder was pressed into tablets and sintered at 900 1400 °C for 8 hours. Differential scanning calorimetry and dilatometric studies indicated crystallization of ZrTiO_4 at 600-700 °C. Raman spectroscopy and X ray diffraction analysis confirmed crystallization of pure zirconium titanate already at 900 °C, and crystallite size was determined by Scherrer equation. Scanning electron microscopy showed that ZrTiO_4 grains begin to sinter at higher temperatures, starting from 1200 °C, while preserving high porosity up to 1300 °C.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Elektrotehnika, Kemijsko inženjerstvo

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