Porous zirconium titanate ceramics synthesized by sol-gel process (CROSBI ID 138387)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Macan, Jelena ; Gajović, Andreja ; Ivanković, Hrvoje
engleski
Porous zirconium titanate ceramics synthesized by sol-gel process
Zirconium titanate, ZrTiO4, was synthesized by sol-gel method from zirconium butoxide and titanium isopropoxide. Amorphous ZrTiO4 powder was ground, 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 ZrTiO4 at 600-700 °C. Raman spectroscopy and X-ray diffraction analysis confirmed presence of crystallized ZrTiO4 already at 900 °C, and crystallite size was determined by Scherrer equation. Scanning electron microscopy showed that ZrTiO4 grains begin to sinter at higher temperatures, starting from 1200 °C, while preserving high porosity up to 1300 °C as confirmed by dilatometry and mercury intrusion porosimetry.
sol-gel processes ; sintering ; porosity ; zirconium titanate
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Podaci o izdanju
29 (4)
2009.
691-696
objavljeno
0955-2219
1873-619X
10.1016/j.jeurceramsoc.2008.07.001
Povezanost rada
Fizika, Kemijsko inženjerstvo, Temeljne tehničke znanosti