共沉淀法制备CaCu3Ti4O12陶瓷

doi:10.3724/SP.J.1077.2010.00835

无机材料学报 ›› 2010, Vol. 25 ›› Issue (8): 835-839.DOI: 10.3724/SP.J.1077.2010.00835 CSTR: 32189.14.SP.J.1077.2010.00835

共沉淀法制备CaCu₃Ti₄O₁₂陶瓷

杨雁, 李盛涛

(西安交通大学电力设备电气绝缘国家重点实验室, 西安710049)

收稿日期:2009-11-03 修回日期:2010-02-02 出版日期:2010-08-20 网络出版日期:2010-07-19
基金资助:
国家杰出青年科学基金(50625721); 国家自然科学基金(50972118)

CaCu₃Ti₄O₁₂ Ceramics Prepared by Coprecipitation Method

YANG Yan, LI Sheng-Tao

(State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an 710049, China)

Received:2009-11-03 Revised:2010-02-02 Published:2010-08-20 Online:2010-07-19

摘要/Abstract

摘要：

为了降低CaCu₃Ti₄O₁₂陶瓷的介电损耗, 保持高介电常数, 采用共沉淀法制备CaCu₃Ti₄O₁₂陶瓷. 研究了前驱粉料的热分解过程、煅烧后粉料的物相结构、陶瓷的显微结构和介电性能, 并考察了Ca、Cu混合溶液pH值对CaCu₃Ti₄O₁₂陶瓷性能的影响. 结果表明: 当Ca、Cu混合溶液pH值为5.1时, 制备的CaCu₃Ti₄O₁₂陶瓷介电损耗最低, 而且能保持高介电常数. 在室温下, 频率为1kHz时, 介电常数为1.4×10⁴, 介电损耗为0.037. 通过对陶瓷性能对比, 发现共沉淀反应中各元素的沉淀比例, 陶瓷的微观结构和介电性能均受该pH值的影响. 因此, Ca、Cu混合溶液的pH值对降低CaCu₃Ti₄O₁₂陶瓷介电损耗、保持高介电常数影响很大.

关键词: CaCu₃Ti₄O₁₂陶瓷, 共沉淀, pH值, 介电损耗

Abstract:

In order to reduce the dielectric loss and retain the high dielectric constant, CaCu₃Ti₄O₁₂ceramics were prepared by coprecipitation method. The thermal decomposition process of precursor was studied by TG/DTG and FTIR. The CaCu₃Ti₄O₁₂phase structure was confirmed by X-ray diffraction. The dielectric spectra and I-V characteristics were measured at room temperature. Ca-Cu solutions with different pH values were used. It is found that when the pH value of Ca-Cu solutions is 5.1, the dielectric constant of the CaCu₃Ti₄O₁₂ceramics is still high and dielectric loss reaches the lowest. At room temperature, the dielectric constant is 1.4×10⁴ and the dielectric loss is 0.037, when the frequency is 1kHz. The precipitation of each element, microstructure and dielectric properties of ceramics are affected by the pH value of Ca-Cu solution. Thus the pH value of Ca-Cu solution is one of the key points to decrease dielectric loss and improve dielectric constant of the CaCu₃Ti₄O₁₂ceramics.

Key words: CaCu₃Ti₄O₁₂, coprecipitation, pH value, dielectric loss

中图分类号:

TM283

杨雁, 李盛涛. 共沉淀法制备CaCu₃Ti₄O₁₂陶瓷[J]. 无机材料学报, 2010, 25(8): 835-839.

YANG Yan, LI Sheng-Tao. CaCu₃Ti₄O₁₂ Ceramics Prepared by Coprecipitation Method[J]. Journal of Inorganic Materials, 2010, 25(8): 835-839.

参考文献

[1]Subramanian M A, Li D, Duan N, et al. High dielectric constant in ACu3Ti4O12 and ACu3Ti3FeO12 phases.Journal of Solid State Chemistry,2000, 151(2):323-325
[2]Ramirez A, Subramanian M, Gardel M, et al. Giant dielectric constant response in a copper-titanate.Solid State Comuunications,2000, 115(5):217-220
[3]Sinclair D C, Adams T B, Morrison F D. CaCu3Ti4O12: one-step internal barrier layer capacitor.Applied Physics Letters,2002, 80(12):2153-2155
[4]Homes C C, Vogt T, Shapiro S M, et al. Optical response of high-dielectric-constant perovskite-related oxide.Science,2001, 293(5530):673-676
[5]Wu L, Zhu Y, Park S, et al. Defect structure of the high-dielectric- constant perovskite CaCu3Ti4O12.Physical Review B,2005, 71(1):014118-
[6]Grubbs R K, Venturini E L, Clem P G, et al. Dielectric and magnetic properties of Fe- and Nb-doped CaCu3Ti4O12. Physical Review B (Condensed Matter and Materials Physics), 2005, 72(10): 104111-1-11.
[7]Choi S W, Hong S H, Kim Y M. Effect of Al doping on the electric and dielectric properties of CaCu3Ti4O12. Journal of American Ceramic Society, 2007, 90(12): 4009-4011.
[8]Patterson E A, Kwon S, Huang C C, et al. Effects of ZrO2 additions on the dielectric properties of CaCu3Ti4O12.Applied Physics Letters,2005, 87(18):182911-
[9]Kima K M, Kima S J, Leea J H, et al. Microstructural evolution and dielectric properties of SiO2-doped CaCu3Ti4O12.Journal of the European Ceramic Society,2007, 27(13/14/15):3991-3995
[10]Kobayashi W, Terasaki I. CaCu3Ti4O12/CaTiO3 composite dielectrics: Ba/Pb-free dielectric ceramics with high dielectric constants.Applied Physics Letters,2005, 87(3):032902-1
[11]Marchin L, Guillemet-fritsch S, Durand B. Grain growth-controlled giant permittivity in soft chemistry CaCu3Ti4O12 ceramics.Journal of American Ceramic Society,2008, 91(2):485-489
[12]杨雁, 李盛涛(YANG Yan, et al). CaCu3Ti4O12陶瓷的微观结构及直流导电特性. 物理学报(Acta Physica Sinica), 2009, 58(09): 474-478.
[13]Bender B A, Pan M J. The effect of processing on the giant dielectric properties of CaCu3Ti4O12.Materials Science and Engineering B,2005, 117(3):339-347
[14]Aygün S, Tan X, Maria J P, et al. Effects of processing conditions on the dielectric properties of CaCu3Ti4O12.Journal of Electroceramics,2005, 15(3):203-208
[15]Guillemet-Fritsch S, Lebey T, Boulos M, et al. Dielectric properties of CaCu3Ti4O12 based multiphased ceramics.Journal of the European Ceramic Society,2006, 26(7):1245-1257
[16]Marchin L, Guillemet-Fritsch S, Durand B. Soft chemistry synthesis of the perovskite CaCu3Ti4O12.Progress in Solid State Chemistry,2008, 36(1/2):151-155
[17]Thomas P, Dwarakanath K, Varma K, et al. Nanoparticles of the giant dielectric material, CaCu3Ti4O12 from a precursor route.Journal of Physics and Chemistry of Solids,2008, 69(10):2594-2604
[18]Thomas P, Dwarakanath K, Varma K, et al. Synthesis of nanoparticles of the giant dielectric material, CaCu3Ti4O12 from a precursor route.Journal of Thermal Analysis and Calorimetry,2009, 95(1):267-272
[19]Schrey F. Effect of pH on the chemical preparation of barium-strontium titanate.Journal of the American Ceramic Society,1965, 48(8):401-405
[20]Nakamoto K. Infrared Spectra of Inorganic and Coordination Compounds. New York: Wiley, 1963.
[21]Potdar H S, Deshpande S B, Date S K. Chemical coprecipitation of mixed (Ba+Ti) oxalates precursor leading to BaTiO3 powders.Materials Chemistry and Physic,1999, 58(2):121-127

共沉淀法制备CaCu₃Ti₄O₁₂陶瓷

CaCu₃Ti₄O₁₂ Ceramics Prepared by Coprecipitation Method

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