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ZrTiO4 ceramics; Mechanochemical processing; Sintering; Crystal structure
Ceramic in TEM
Abstract:
High-energy ball milling has been employed for mechanochemical treatment of TiO2 and ZrO2, thus facilitated the solid-state reaction toward ZrTiO4. The ceramics with different degrees of porosity were prepared by 8 h sintering of thus prepared nanopowder precursor at 1100, 1200, 1300 and 1400 °C. The solid-state reaction was completed after sintering at 1200 °C.
The correlation between the structure of ZrTiO4 ceramic (ZT) at the nano-scale and its electric response at different humidities was studied. Highly porous ZT ceramics sintered at 1100 and 1200 °C showed significant difference in electrical conductivity depending on atmosphere conditions indicating promising application as humidity sensors.