Flash Creation Method生成ナノ粉末を用いて作製した高品質非鉛強誘電体セラミックス(<ゲストエディターによる特集>周期空間と相互作用する新しいセラミックスのマテリアルデザインとプロセッシング)

概要

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We report high-quality and high-density Bi_<3.25>La_<0.75>Ti_3O_<12> ceramics prepared by sintering at a low temperature of 900℃ from the nanosized powder with a diameter around 100 nm synthesized by the flash creation method. The densification at 900℃, which was 300℃ lower sintering temperature compared with conventional solid-state reaction, enables us to obtain the ceramics showing a remanent polarization of 14.5μC/cm^2, a coercive field of 50 kV/cm and a leakage current of 〜10^<-9> A/cm^2. The superior properties are indicated to originate from lower defect concentration achieved by the low temperature sintering.
社団法人日本セラミックス協会の論文
2006-01-01