Preparation and Properties of BaTiO3 Ceramics by Spark Plasma Sintering

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概要

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• BaTiO3 (BT) ceramics are prepared by spark plasma sintering (SPS) and conventional sintering. In conventional sintering, the density and grain size of the ceramics increase with sintering temperature. In SPS, ceramics with more than 97% relative densities can be obtained by sintering at 900 °C for 5 min in air atmosphere. Compared with conventional sintering, SPS suppresses grain growth in ceramics. The average grain size of the BT ceramics obtained by SPS and subsequent annealing at 1000 °C for 12 h is less than 1 μm. The ceramics exhibit a high relative dielectric constant of 6020. The field-induced displacement of the BT ceramics is larger than that of the ceramics sintered conventionally. The dynamic strain/field at 15 kV/cm was 540 pm/V.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2008-09-25

著者

• Maiwa Hiroshi

  Shonan Institute of Technology

• Maiwa Hiroshi

  Shonan Institute of Technology, 1-1-25 Tsujido-Nishikaigan, Fujisawa, Kanagawa 251-8511, Japan

関連論文

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• Space Charge Effects on Ferroelectric Ceramic Particle Surfaces
• Electromechanical Properties of BaTiO3 Ceramics Prepared by Spark Plasma Sintering and Other Methods
• Preparation and Properties of BaTiO3 Ceramics by Spark Plasma Sintering

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