Abstract
Polycrystalline calcium copper titanate (CCTO) with chemical composition Ca1- xCexCu3Ti4-yNi yO12 (x = 0.0, 0.25, 0.45, 0.65 and y = 0.0, 0.3, 0.5, 0.7) was synthesized via sol-gel technique. The prepared samples were subjected to pre-sintering in a muffle furnace at 800 ℃ for 6 h and thereafter sintered at 900 ℃ for 6 h. XRD analysis confirmed the formation of calcium copper titanate with traces of CaTiO3 and CuO whose intensity increases with substation of Ce–Ni. HRSEM micrograph shows large, regular and polyhedral grains with size ranging from 902.4 nm to 1.562 μm. EDX spectra shows presence of elements in agreement with the stoichiometry of the prepared sample. High value of dielectric constant (16,000 at 100 Hz) was observed in the sample with x = 0.25 and y = 0.3 at low frequency. The sample with x = 0.65 and y = 0.7 exhibit the lowest dielectric tangent loss (0.189). Cole-Cole plot indicates that the dielectric properties of the prepared sample mostly result from grain boundary resistance.
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References
Barman N, Tripathi S, Ravishankar N, Varma KBR (2016) Centrosymmetric tetragonal tellurium doped calcium copper titanate and its dielectric tunability. Solid State Commun 241:7–13
Khare A, Sundar S, Mandal KD, Mukhopadhyay NK (2016) Effect of sintering duration on the dielectric properties of 0.9BaTiO3—0.1CaCu3Ti4O12 nanocomposite synthesized by solid state route. Microelectron Eng 164:1–6
Sharma S, Singh MM, Rai US, Mandal KD (2015) Materials science in semiconductor processing rationalization of dielectric properties of nano-sized iron doped yttrium copper titanate using impedance and modulus studies. Mater Sci Semicond Process 31:720–727
Singh L, Sin BC, Kim IW, Mandal KD, Chung H, Lee Y (2016) A Novel one-step flame synthesis method for tungsten-doped CCTO. J Am Ceram Soc 99(1):27–34
Chunhong MU, Huaiwu Z, Yingli LIU, Yuanqiang S, Peng LIU (2010) Rare earth doped CaCu3Ti4O12 electronic ceramics for high frequency applications. J Rare Earths 28(1):43–47
Liang P, Yang Z, Chao X (2016) Enhanced intrinsic permittivity and bulk response in Y2/3 Cu3Ti4+xO12 ceramics. Ceram Int 12:1–6
Li W, Qiu S, Chen N, Du G (2010) Enhanced dielectric response in Mg-doped CaCu3Ti4O12 ceramics. J Mater Sci Technol 26(8):682–686
Wang XW (2016) Calcining temperature dependence on structure and dielectric properties of CaCu3Ti4O12 ceramics. J Mater Sci: Mater Electron 27(11):12134–12140
Mandal KD, Rai AK, Kumar D, Parkash O (2009) Dielectric properties of the Ca1-xLaxCu3Ti4-xCoxO12 system (x = 0.10, 0.20 and 0.30) synthesized by semi-wet route. J. Alloys Compd. 478:771–776
Kumar A, Mandal KD, Kumar D, Parkash O (2010) Characterization of nickel doped CCTO: CaCu2.9Ni0.1Ti4O12 and CaCu3Ti3.9Ni0.1O12 synthesized by semi-wet route. J Alloys Compd 491:507–512
Dubey AK, Singh P, Singh S, Kumar D, Parkash O (2011) Charge compensation, electrical and dielectric behavior of lanthanum doped. J Alloys Compd 509(9):3899–3906
Jesurani S, Kanagesan S, Hashim M, Ismail I (2013) Dielectric properties of Zr doped CaCu3Ti4O12 synthesized by sol—gel route. J Alloys Compd 551:456–462
Adams BTB, Sinclair DC, West AR (2002) Giant barrier layer capacitance effects in CaCu3Ti4O12 ceramics. Ceramics Adv Mater 14:1321–1323
Jesurani S, Kanagesan S, Hashim M, Ismail I, Ibrahim IR (2014) Microstructural and dielectric properties of Zr doped microwave sintered CaCu3Ti4O12 synthesized by sol-gel route. Adv Mater 2014:1–6
Liu L, Fan H, Fang P, Chen X (2008) Sol-gel derived CaCu3Ti4O12 ceramics: synthesis, characterization and electrical properties. Mater Res Bull 43:1800–1807
Singh L, Kim IW, Sin BC, Woo SK, Hyun SH, Mandal KD, Lee Y (2015) Combustion synthesis of nano-crystalline Bi2/3Cu3Ti3.90Fe0.10O12 using inexpensive TiO2 raw material and its dielectric characterization. Powder Technol 280:256–265
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Mohammed, J. et al. (2018). Structural and Dielectric Properties of Polycrystalline Calcium Copper Titanate (CCTO). In: Antony, K., Davim, J. (eds) Advanced Manufacturing and Materials Science. Lecture Notes on Multidisciplinary Industrial Engineering. Springer, Cham. https://doi.org/10.1007/978-3-319-76276-0_37
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DOI: https://doi.org/10.1007/978-3-319-76276-0_37
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