Preparation and Electrical Properties of CaCu3Ti4O12 Thin Ceramic Sheets via Water-based Tape Casting

doi:10.15541/jim20140255

Abstract

Abstract:

Thin ceramic sheet of CaCu₃Ti₄O₁₂ has a great significance for preparation of multiplayer ceramic chip capacitors. In this work, a simple plan was made to achieve CaCu₃Ti₄O₁₂ thin ceramic sheets with excellent dielectric properties. Thin ceramic sheets of CaCu₃Ti₄O₁₂ were prepared via water-based tape casting at various sintering temperatures. The CaCu₃Ti₄O₁₂ samples sintered at 1080℃ exhibit a great performance on dielectric properties with high permittivity (ε_r=98605) and low dielectric loss (tanδ=0.028) which are better than those of samples prepared by conventional dry pressing. Meanwhile, the complex impedance spectra were measured to explain the mechanism of special electrical behaviors of CaCu₃Ti₄O₁₂ ceramics. These testing results indicate that the CaCu₃Ti₄O₁₂ ceramics via tape casting exhibits a better performance of giant permittivity and lower dielectric loss than other reports, which provides a possibility for the application of the CaCu₃Ti₄O₁₂ in modern micro-electronics technology.

Key words: perovskite, tape casting, dielectric properties, grain boundary

CLC Number:

TQ174

LI Wei, XIONG Zhao-Xian, XUE Hao. Preparation and Electrical Properties of CaCu₃Ti₄O₁₂ Thin Ceramic Sheets via Water-based Tape Casting[J]. Journal of Inorganic Materials, 2014, 29(11): 1228-1232.

Figures/Tables 7

Fig. 1 XRD patterns of thin CCTO ceramic sheets sintered at different temperatures, comparing with CCTO (PDF 01-075-1149)

Fig. 2 SEM images of the CaCu3Ti4O12 samples sintered at (a) 1040℃, (b) 1060℃, (c) 1080℃ and (d) 1100℃

Fig. 3 SEM images of the sample sintered at 1080℃ (a and b), EDX patferns of grain (c) and grain boundary region (d)

Fig. 4 Frequency dependence of permittivity and loss of samples sintered at different temperatures at room temperature

Fig. 5 Temperature dependence of permittivity and loss of samples sintered at different temperatures

Fig. 6 Complex impedance plane measured at room temperature (25℃) for CaCu3Ti4O12 samples sintered at different temperatures Inset in (a) shows an expanded views of the high-frequency data and in (b) shows an expanded views of the high-frequency data close to the origin

Fig. 7 Improved equivalent circuit model according to the IBLC and Schottky barrier model Grains and grain boundaries respectively correspond to a RCD element. Diode stand for a Schottky-type potential barrier

References 23

[1]	HOTZA D, GREIL P. Review: aqueous tape casting of ceramic powders. Mater. Sci. Eng., 1995, 202(1): 206-217.
[2]	HOWATT G, BRECKENRIDGE R, BROWNLOW J. Fabrication of thin ceramic sheets for capacitors. J. Am. Ceram. Soc., 1947, 30(8): 237-242.
[3]	HOMES C, VOGT T, SHAPIRO S, et al. Optical response of high-dielectric-constant perovskite-related oxide. Science, 2001, 293(5530): 673-676.
[4]	SUBRAMANIAN M, LI D, DUAN N, et al. High dielectric constant in ACu3Ti4O12 and ACu3Ti3FeO12 phases. J. Solid State Cherm., 2000, 151(2): 323-325.
[5]	LIU J, DUAN C G, MEI W N, et al. Dielectric properties and Maxwell-Wagner relaxation of compounds ACu3Ti4O12 (A=Ca, Bi2/3, Y2/3, La2/3). J. Appl. Phys., 2005, 98(9): 093703-093705.
[6]	MAZUMDER R, SEAL A, SEN A, et al. Effect of boron addition on the dielectric properties of giant dielectric CaCu3Ti4O12. Ferroelectrics, 2005, 326(1): 103-108.
[7]	JIN S, XIA H, ZHANG Y. Effect of La-doping on the properties of CaCu3Ti4O12 dielectric ceramics. Ceram. Int., 2009, 35(1): 309-313.
[8]	YU H, LIU H, HAO H, et al. Dielectric properties of CaCu3Ti4O12 ceramics modified by SrTiO3. Mater. Lett., 2008, 62(8): 1353-1355.
[9]	Kobayashi W, Terasaki I. CaCu3Ti4O12/CaTiO3 composite dielectrics: Ba/Pb-free dielectric ceramics with high dielectric constants. Appl. Phys. Lett., 2005, 87(3): 032902-032903.
[10]	PATTERSON E A, KWON S, HUANG C C, et al. Effects of ZrO2 additions on the dielectric properties of CaCu3Ti4O12. Appl. Phys. Lett., 2005, 87(18): 182911-182913.
[11]	SINCLAIR D C, ADAMS T B, MORRISON F D, et al. CaCu3Ti4O12: one-step internal barrier layer capacitor. Appl. Phys. Lett., 2002, 80(12): 2153-2155.
[12]	ADAMS T B, SINCLAIR D C, WEST A R. Giant barrier layer capacitance effects in CaCu3Ti4O12 ceramics. Adv. Mater., 2002, 14(18): 1321-1323.
[13]	CHUNG S Y, KIM I D, KANG S J L. Strong nonlinear current- voltage behaviour in perovskite-derivative calcium copper titanate. Nat. Mater., 2004, 3(11): 774-778.
[14]	YU R, XUE H, CAO Z, et al. Effect of oxygen sintering atmosphere on the electrical behavior of CCTO ceramics. J. Eur. Ceram. Soc., 2012, 32(6): 1245-1249.
[15]	RAMIREZ A, SUBRAMANIAN M, GARDEL M, et al. Giant dielectric constant response in a copper-titanate. J. Solid State Cherm., 2000, 115(5): 217-220.
[16]	DE LARUBIA M A, LERET P, DEFRUTOS J, et al. Effect of the synthesis route on the microstructure and the dielectric behavior of CaCu3Ti4O12 ceramics. J. Am. Ceram. Soc., 2012, 95(6): 1866-1870.
[17]	MCGUINNESS C, DOWNES J E, SHERIDAN P, et al. X-ray spectroscopic study of the electronic structure of the high-dielec tricconstant material CaCu3Ti4O12. Phy. Rev. B, 2005, 71(19): 195111.
[18]	CAPSONI D, BINI M, MASSAROTTI V, et al. Role of doping and CuO segregation in improving the giant permittivity of CaCu3Ti4O12. J. Solid State Cherm., 2004, 177(12): 4494-4500.
[19]	PRAKASH B S, VARMA K. The influence of the segregation of Cu-rich phase on the microstructural and impedance characteristics of CaCu3Ti4O12 ceramics. J. Mater. Sci., 2007, 42(17): 7467-7477.
[20]	FANG T T, MEI L T. Evidence of Cu deficiency: a key point for the understanding of the mystery of the giant dielectric constant in CaCu3Ti4O12. J. Am. Ceram. Soc., 2007, 90(2): 638-640.
[21]	JO SOO KYONG, HAN YOUNG HO. Sintering behavior and dielectric properties of polycrystalline CaCu3Ti4O12. J. Mater. Sci.: Mater. Electron., 2009, 20: 680-684.
[22]	THOMAS P, DWARAKANATH K, VARMA K. Effect of calcium stoichiometry on the dielectric response of CaCu3Ti4O12 ceramics. J. Eur. Ceram. Soc., 2012, 32(8): 1681-1690.
[23]	MARQUES V, BUENO P, SIMOES A, et al. Nature of potential barrier in CaCu3Ti4O12 polycrystalline perovskite. J. Solid State Cherm., 2006, 138(1): 1-4.

Preparation and Electrical Properties of CaCu₃Ti₄O₁₂ Thin Ceramic Sheets via Water-based Tape Casting

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 7

References 23

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	HU Yang, XIE Min, ZHANG Xiaoyi, LI Xiang, GUO Xinwei, JIANG Nan, ZHOU Wenhan, ZHANG Shengli, ZENG Haibo. Research Progress on Computational and Data-driven Environmental-friendly Luminescent Materials [J]. Journal of Inorganic Materials, 2026, 41(6): 704-722.
[2]	HONG Enliu, TU Xinchen, LI Ziqing, FANG Xiaosheng. Two-dimensional Perovskite Single Crystal Nanosheets: Floating Growth and Optoelectronic Performance [J]. Journal of Inorganic Materials, 2026, 41(6): 787-794.
[3]	DONG Langping, LI Shixuan, YANG Shaoxing, HOU Jingshan, LIN Yandan, ZHOU Pengcheng, SUN Xuejiao, SUN Yiyang, CHEN Daqin, FANG Yongzheng. Anomalous Fluorescence Thermal Quenching in a Red-emitting RbZnF₃:Eu³⁺ Phosphor under Violet Excitation [J]. Journal of Inorganic Materials, 2026, 41(5): 673-680.
[4]	JIANG Jun, YANG Gonglü, YANG Yufan, LI Yi, YUAN Ningyi, DING Jianning. Regulating Perovskite Film Crystallization via Organic Amine Salts for Enhanced Photoelectric Conversion Efficiency and Stability [J]. Journal of Inorganic Materials, 2026, 41(2): 186-192.
[5]	ZHU Wenjie, TANG Lu, LU Jichang, LIU Jiangping, LUO Yongming. Research Progress on Catalytic Oxidation of Volatile Organic Compounds by Perovskite Oxides [J]. Journal of Inorganic Materials, 2025, 40(7): 735-746.
[6]	CHAI Runyu, ZHANG Zhen, WANG Menglong, XIA Changrong. Preparation of Ceria Based Metal-supported Solid Oxide Fuel Cells by Direct Assembly Method [J]. Journal of Inorganic Materials, 2025, 40(7): 765-771.
[7]	JIANG Kun, LI Letian, ZHENG Mupeng, HU Yongming, PAN Qinxue, WU Chaofeng, WANG Ke. Research Progress on Low-temperature Sintering of PZT Ceramics [J]. Journal of Inorganic Materials, 2025, 40(6): 627-638.
[8]	QU Jifa, WANG Xu, ZHANG Weixuan, ZHANG Kangzhe, XIONG Yongheng, TAN Wenyi. Enhanced Sulfur-resistance for Solid Oxide Fuel Cells Anode via Doping Modification of NaYTiO₄ [J]. Journal of Inorganic Materials, 2025, 40(5): 489-496.
[9]	YANG Hengqiang, ZHANG Xinyue, MA Yichu, ZHOU Qingjun. Iron-based Perovskite Material La_0.25M_0.75FeO_3-_δ (M=Ca, Sr, Ba): Preparation and Performance as Cathode for Solid Oxide Fuel Cells [J]. Journal of Inorganic Materials, 2025, 40(12): 1365-1372.
[10]	WANG Zhe, HAO Hongru, WU Zonghui, XU Lingling, LÜ Zhe, WEI Bo. Enhancing Cr-tolerance Ability of Double Perovskite Cathodes through Configuration Entropy Engineering [J]. Journal of Inorganic Materials, 2025, 40(12): 1341-1348.
[11]	HU Qinghao, LIU Xingchong, PENG Yongshan, HOU Mengjun, HE Tanggui, TANG Anmin. Effect of Acesulfame Potassium Modified SnO₂ Electron Transport Layer on Performance of Perovskite Solar Cells [J]. Journal of Inorganic Materials, 2025, 40(11): 1261-1267.
[12]	XU Xiaoyu, ZHOU Liyang, FENG Xiaoying, WANG Hui, YAN Bin, XU Jie, GAO Feng. Microstructure and Properties of PIN-PZN-PZ-PT Piezoelectric Ceramics Designed by MPB Linear Rules [J]. Journal of Inorganic Materials, 2025, 40(11): 1285-1292.
[13]	LÜ Xinyi, XIANG Hengyang, ZENG Haibo. Long-range Ordered Films Boost Efficient Perovskite Quantum Dot Light-emitting Devices [J]. Journal of Inorganic Materials, 2025, 40(1): 111-112.
[14]	QU Mujing, ZHANG Shulan, ZHU Mengmeng, DING Haojie, DUAN Jiaxin, DAI Henglong, ZHOU Guohong, LI Huili. CsPbBr₃@MIL-53 Nanocomposite Phosphors: Synthesis, Properties and Applications in White LEDs [J]. Journal of Inorganic Materials, 2024, 39(9): 1035-1043.
[15]	XIAO Zichen, HE Shihao, QIU Chengyuan, DENG Pan, ZHANG Wei, DAI Weideren, GOU Yanzhuo, LI Jinhua, YOU Jun, WANG Xianbao, LIN Liangyou. Nanofiber-modified Electron Transport Layer for Perovskite Solar Cells [J]. Journal of Inorganic Materials, 2024, 39(7): 828-834.