ＳｒＴｉＯ３系バリスタの微細構造と電気的特性に及ぼすＭｇＯ添加の効果

• 小笠原 正

  TDK株式会社電子デバイス事業本部

• 福田 勝

  TDK株式会社電子デバイス事業本部

• 松岡 大

  TDK株式会社電子デバイス事業本部

書誌事項

タイトル別名

• Microstructure and electric properties of SrTiO3 based varistor.

抄録

The effect of MgO addition on the microstructure and the electronic properties of the SrTiO₃-based varistor have been investigated. The addition of MgO on the calcined powder contributed to an increase in nonlinear coefficient (α). The MgO promoted grain growth in sintering process. After sintering, MgO existed at the grain boundary and effected on the oxygen diffusion. The capaci tance of the grain and the grain boundary was decreased by the addition of MgO. As the result, the height of Schottkey barrier increased with the addition of MgO.<BR>We thought that the increase of nonlinear coefficient (α) was the result of inrrpnsp in hpight nf Schottky barrier.

収録刊行物

• 素材物性学雑誌

  素材物性学雑誌 9 (2), 40-47, 1996

  日本素材物性学会

キーワード

• Varistor
• SrTiO<SUB>3</SUB>
• MgO
• Diffusion of oxygen
• Nonlinear coefficient

詳細情報

• CRID: 1390282679320614784
• NII論文ID: 130004004027
• DOI: 10.5188/jsmerj.9.2_40
• ISSN: 18846610
• ISSN: 09199853
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可