Microwave Dielectric Properties of (Pb0.45Ca0.55)(Fe0.5Nb0.5)O3  Nano-Ceramics Fabricated Using Spark Plasma Sintering

K. B. SHIM; D. W. LEE; S. K. KANG; B. S. HYUN; S. H. KIM

doi:10.14852/jcersjsuppl.112.0.S1610.0

Journal of the Ceramic Society of Japan, Supplement 112-1, PacRim5 Special Issue

Session ID : 24

DOI https://doi.org/10.14852/jcersjsuppl.112.0.S1610.0

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Host: The Ceramic Society of Japan

Co-host: Iketani Science and Technology Foundation, International Ceramic Federation, Commemorative Organization for the Japan World Exposition '70, The American Ceramic Society, The Australasian Ceramic Society, The Chinese Ceramic Society, The Korean Ceramic Society, Joint Research Consortium of Synergy Ceramics/Fine Ceramics Research Association, Nanotechnology Researchers Network Center of Japan, The Special Coordination Funds for Promoting Science and Technology, Japan National Tourist Organization, Aichi Prefectural Government, CASIO SCIENCE PROMOTION FOUNDATION, DAIKO FOUNDATION, Nagoya Convention and Visitors Bureau, The Asahi Glass Foundation, The Kao Foundation For Arts And Sciences, The Murata Science Foundation, The Ogasawara Foundation for the Promotion of Science & Engineering, ASAHI GLASS CO., LTD. Research Center, CENTRAL GLASS CO., LTD., ELECTRIC GLASS INDUSTRY ASSOCIATION OF JAPAN (EGAJ), Hattori Company, Ltd., Hitachi Research Laboratory, Hitachi, Ltd., HOYA CORPORATION, INAX Corporation, ITOCHU CERATECH CORP., Japan Cement Association, KYOCERA Corporation, KYUSHU REFRACTORIES CO., LTD., MINO CERAMIC CO., LTD., Murata Manufacturing Co., Ltd., NGK INSULATORS LTD., NGK SPARK PLUG CO., LTD., NICHIAS Corporation, NIKKO COMPANY, Nippon Electric Glass Co., Ltd., Nippon Sheet Glass Co., Ltd., NORITAKE CO., LIMITED, Tokuyama Corporation, TOTO LTD.

Papers

Microwave Dielectric Properties of (Pb_0.45Ca_0.55)(Fe_0.5Nb_0.5)O₃ Nano-Ceramics Fabricated Using Spark Plasma Sintering

K. B. SHIM, D. W. LEE, S. K. KANG, B. S. HYUN, S. H. KIM

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Keywords: PCFN, Metal-citrate process, Spark plasma sintering, Microwave dielectric properties

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Abstract

Nano sized (Pb_0.45Ca_0.55)(Fe_0.5Nb_0.5)O₃ (PCFN) powders of a stoichiometric composition and a uniform size distribution were successfully synthesized by a metal-citrate process through the calcinations of the polymeric precursor. The optimum calcination temperature for the crystallization was found to be 700°C. The PCFN powders synthesized were in the size range of 30-50 nm with a uniform shape. A spark plasma sintering technique was found to be very effective in the full densification of the PCFN nano powders at low temperature. The sintered PCFN ceramics exhibited a uniform microstructure and their dielectric characteristics were sufficiently good for them to be applied in the microwave devices.

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