Effective synthesis to fabricate a giant dielectric-constant material CaCu3Ti4O12 via solid state reactions
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In this study, we effectively synthesized a giant dielectric-constant material CaCu3Ti4O12 (CCTO) by using a solid-state reaction method that was composed of two main chemical reactions. Comparing with typical calcining conditions, our procedures are much less energy- and time-consuming. When preparing our CCTO, we applied a momentarily high temperature heating at the end of the calcination, then followed it by a typical sintering process. We found this additional heating converts the otherwise mixed-phase products into a pure phase and the CCTO samples prepared this special way possess a large dielectric constant, up to 19,000.
Abstract
In this study, we effectively synthesized a giant dielectric-constant material CaCu3Ti4O12 (CCTO) by using a solid-state reaction method that was composed of two main chemical reactions. Comparing with typical calcining conditions, our procedures are much less energy- and time-consuming. When preparing our CCTO, we applied a momentarily high temperature heating at the end of the calcination, then followed it by a typical sintering process. We found this additional heating converts the otherwise mixed-phase products into a pure phase and the CCTO samples prepared this special way possess a large dielectric constant, up to 19,000.
참고문헌 (22)
- M.A. Subramanian, , J. Solid State Chem., 151, pp.323~325 (2000)
- A.P. Ramirez, , Solid State Commun., 115, pp.217~220 (2000)
- C.C. Homes, , Science, 293, pp.673~676 (2001)
- D.C. Sinclair, , Appl. Phys. Lett., 80, pp.2153~2155 (2002)
- C.C. Homes, , Phy. Rev. B, 67, pp.092106~ (2003)
- C.F. Yang, , Jpn. J. Appl. Phys., 35, pp.1806~1813 (1996)
- P. Lunkenheimer, , Phys. Rev. B, 66, pp.052105~ (2002)
- P. Lunkenheimer, , Phys. Rev. B, 70, pp.172102~ (2004)
- J. Yang, , Mater. Lett., 59, pp.3990~3993 (2005)
- G. Chiodelli, , Solid State Commun., 132, pp.241~246 (2004)
- G. Zang, , J. Phys. D: Appl. Phys., 38, pp.1824~1827 (2005)
- J. Li, , Solid State Commun., 135, pp.260~262 (2005)
- C.P. Sun, , J. Phys.: Condens. Matter, 20, pp.285214~ (2008)
- J.J. Liu, , J. Appl. Phys., 98, pp.093703~ (2005)
- T.B. Adams, , J. Am. Ceram. Soc., 89, pp.2833~2838 (2006)
- S. Aygün, , J. Electroceram., 15, pp.203~208 (2005)
- W.P. Chen, , J. Alloy. Compd., 422, pp.L9~L12 (2006)
- W. Kobayashi, , Appl. Phys. Appl., 87, pp.032902~ (2005)
- W. Li, , Phys. Rev. B, 75, pp.012104~ (2007)
- W.Q. Ni, , J. Mater. Sci., 42, pp.1037~1042 (2007)
- S.F. Shao, , J. Appl. Phys., 99, pp.084106~ (2006)
- L.X. Feng, , Phys. Stat. Sol. (a), 203, pp.R22~R24 (2006)