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Structure and electrical conductivity of porous zirconium titanate ceramics produced by mechanochemical treatment and sintering

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Su,  Dang Sheng
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Citation

Gajović, A., Šantić, A., Djerdj, I., Tomašić, N., Moguš-Milanković, A., & Su, D. S. (2009). Structure and electrical conductivity of porous zirconium titanate ceramics produced by mechanochemical treatment and sintering. Journal of Alloys and Compounds, 479(1-2), 525-531. Retrieved from http://dx.doi.org/10.1016/j.jallcom.2008.12.123.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0010-FA6C-6
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.