Size Effect of Nanograined BaTiO3 Ceramics Fabricated by Aerosol Deposition Method

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概要

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• We demonstrated the size effect of nanograined BaTiO3 ceramics using freestanding BaTiO3 thick films fabricated by the aerosol deposition (AD) method. Dense BaTiO3 thick films fabricated by the AD method were crystallized and detached from the SrTiO3 substrate by annealing treatment at 600 °C, and then the grain size was controlled by reannealing treatment at various temperatures. As a result, freestanding BaTiO3 thick films with various grain sizes from 24 to 170 nm were successfully obtained. Polarization–electric field ($P$–$E$) measurement revealed that BaTiO3 ceramics with grain sizes of more than 58 nm showed ferroelectricity, whereas BaTiO3 ceramics with an average grain size of 24 nm showed paraelectricity at room temperature. Dielectric measurement indicated that the permittivity decreased with decreasing grain size in the range from 170 to 24 nm. The decrease in permittivity was due to the decreases in ferroelectricity and domain-wall contributions with decreasing grain size.

• 2010-09-25

著者

• Tsurumi Takaaki

  Nano-Phononics Lab., Graduate School of Science and Engineering, Tokyo Institute of Technology, Meguro, Tokyo 152-8552, Japan

• Horiuchi Naohiro

  Nano-Phononics Lab., Graduate School of Science and Engineering, Tokyo Institute of Technology, Meguro, Tokyo 152-8552, Japan

• Takeda Hiroaki

  Nano-Phononics Lab., Graduate School of Science and Engineering, Tokyo Institute of Technology, Meguro, Tokyo 152-8552, Japan

• Hatta Saki

  Nano-Phononics Lab., Graduate School of Science and Engineering, Tokyo Institute of Technology, Meguro, Tokyo 152-8552, Japan

• Hoshina Takuya

  Nano-Phononics Lab., Graduate School of Science and Engineering, Tokyo Institute of Technology, Meguro, Tokyo 152-8552, Japan

• Furuta Tsutomu

  Nano-Phononics Lab., Graduate School of Science and Engineering, Tokyo Institute of Technology, Meguro, Tokyo 152-8552, Japan

• Kigoshi Yoichi

  Nano-Phononics Lab., Graduate School of Science and Engineering, Tokyo Institute of Technology, Meguro, Tokyo 152-8552, Japan

関連論文

• Shrinkage Behaviors and Sintering Mechanism of BaTiO3 Ceramics in Two-Step Sintering
• Size Effect of Nanograined BaTiO3 Ceramics Fabricated by Aerosol Deposition Method
• Identicalness between Piezoelectric Loss and Dielectric Loss in Converse Effect of Piezoelectric Ceramic Resonators (Special Issue : Ferroelectric Materials and Their Applications)
• Grain Size Effect on Dielectric Properties of Ba(Zr,Ti)O3 Ceramics
• Nonlinear Shear Responses of Lead Zirconate Titanate Piezoelectric Ceramics
• Mechanism Underlying Stacking-Layer Effect of Dielectric Properties of Multilayer Ceramic Capacitors
• Domain Contribution to Dielectric Properties of Fine-Grained BaTiO3 Ceramics

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