Effects of sintering temperature on the dielectric and impedance properties of phase-pure titanium dioxide ceramics
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In this study, phase-pure titanium dioxide TiO2 ceramics were sintered at different temperatures (1,000, 1,100, 1,200, 1,300,1,400 oC). The effects of sintering temperature on the compaction, dielectric and impedance properties were investigated. Frequency and temperature dependencies of dielectric permittivity and dielectric loss were revealed by using dielectricmeasurements. When the TiO2 ceramics sintered at 1,400 oC, it exhibits the larger dielectric constant and the smaller dielectricloss as a result of increased density and decreased porosity. The analysis of complex impedance in the frequency range 100Hz-10 MHz indicated that the TiO2 ceramics were dielectrically combinations of bulk grains and grain boundaries. Theseresults suggest that the sintering temperatures have effects on the microstructure, leading to the variations in dielectric andimpedance properties of TiO2 ceramics.
Abstract
In this study, phase-pure titanium dioxide TiO2 ceramics were sintered at different temperatures (1,000, 1,100, 1,200, 1,300,1,400 oC). The effects of sintering temperature on the compaction, dielectric and impedance properties were investigated. Frequency and temperature dependencies of dielectric permittivity and dielectric loss were revealed by using dielectricmeasurements. When the TiO2 ceramics sintered at 1,400 oC, it exhibits the larger dielectric constant and the smaller dielectricloss as a result of increased density and decreased porosity. The analysis of complex impedance in the frequency range 100Hz-10 MHz indicated that the TiO2 ceramics were dielectrically combinations of bulk grains and grain boundaries. Theseresults suggest that the sintering temperatures have effects on the microstructure, leading to the variations in dielectric andimpedance properties of TiO2 ceramics.
참고문헌 (30)
- M. Mosaddeq-ur-Rahman, , J. Appl. Phys, 88, pp.4634~4641 (2000)
- C. C. Hsieh, , J. AppI. Phys, 92, pp.2518~2523 (2002)
- Y. Paz, , J. Mater. Res, 10, pp.2842~2848 (1995)
- C. G. Granqvist, , Sol. Energy Mater. Sol. Cells, 60, pp.201~262 (2007)
- Yo-Seung Song, "Effect of calcination temperature on photocatalytic activities of Er-TiO2 nanotubes", Journal of Ceramic Processing Research, 20(2), pp.182~186 (2019), 청정에너지연구소[DOI]
- S. Y. Huang, , J. Phys. Chem. B, 101, pp.2576~2582 (1997)
- M. Ferroni, , Sensors and Actuators B : Chemical, 68, pp.140~145 (2000)
- A. Ito, , Mater. Trans, 44, pp.1599~1603 (2003)
- J. L. Look, , J. Am. Ceram. Soc, 75, pp.1587~1595 (1995)
- C. J. Barbe, , J. Am. Ceram. Soc, 80, pp.3157~3171 (1997)
- Hari Sutrisno, "Synthesis of TiO2-polycrystalline microspheres and its microstructure at various high temperatures", Journal of Ceramic Processing Research, 18(5), pp.378~384 (2017), 청정에너지연구소[DOI]
- 송요승, "Photocatalytic activity of TiO2 nanomaterials", Journal of Ceramic Processing Research, 17(11), pp.1197~1201 (2016), 청정에너지연구소[DOI]
- H. S. Lee, "TiO2-SiO2 nanoparticles for suppressing photocatalytic activities and improving hydrophilicity", Journal of Ceramic Processing Research, 13, pp.300~303 (2012), 청정에너지연구소[DOI]
- F. Meng, , Mat. Sci. Eng. B, 117, pp.77~80 (2005)
- A. Ruiz, , Thin Solid Films, 436, pp.90~94 (2003)
- Wen Yan, "Effects of sintering temperature on pore characterization and strength of porous corundum-mullite ceramics", Journal of Ceramic Processing Research, 11(3), pp.388~391 (2010), 청정에너지연구소[DOI]
- L. Hai, , Int. J. Min. Met. Mater, 16, pp.592~597 (2009)
- K. H. Soon, , Am. Mineral, 77, pp.545~557 (1992)
- U. Holzwarth, , Nat. Nanotechnol, 6, pp.534~534 (2011)
- Y. -S. Hong, , J. Eur. Ceram. Soc, 18, pp.613~619 (1998)
- T. -Y. Chen, , Sensor. Actuat. A : Physical, 102, pp.6~10 (2002)
- S. -Y. Chu, , Integr. Ferroelectr, 58, pp.1293~1303 (2003)
- R. Yimnirun, , Int. J. Mod. Phys. B, 20, pp.2415~2424 (2006)
- Y. Chen, , Ferroelectrics, 383, pp.183~190 (2009)
- L. B. Kong, , Mater. Lett, 42, pp.232~239 (2000)
- A. Bouzid, , J. Eur. Ceram. Soc, 25, pp.3213~3221 (2005)
- M. Adamczyk, , J. Mater. Sci, 41, pp.5317~5322 (2006)
- W. Wang, , Solid State Commun, 177, pp.7~9 (2014)
- D. C. Sinclair, , J. Mater. Sci, 29, pp.6061~6068 (1994)
- D. C. Sinclair, , J. Appl. Phys, 66, pp.3850~3856 (1989)