結晶均質化法に基づいたPZT単結晶体の物性同定

DOI Web Site Web Site 参考文献16件 オープンアクセス

書誌事項

タイトル別名
  • Identification of Ferroelectric Properties of PZT Single Crystal Based on a Crystallographic Homogenization Method
  • ケッショウ キンシツカホウ ニ モトヅイタ PZTタンケッショウタイ ノ ブッセイ ドウテイ

この論文をさがす

説明

As single crystal of lead zirconium titanate (PZT) is difficult to produce, all of its ferroelectric properties are not clarified perfectly. In this paper, the ferroelectric properties of PZT single crystal have been identified computationally from ones of PZT ceramic by steepest decent method and multiscale finite element modeling based on a crystallographic homogenization method. Crystallographic homogenization method enables us to predict macroscopic properties of ceramics considering microscopic in-homogeneous structure in an aggregation of crystal grains. Crystal morphology of PZT ceramic has been measured by SEM·EBSD technique, and it has been introduced to microscopic finite element model. Then, the ferroelectric properties of crystal grain were surveyed by steepest decent method to correspond its macroscopic ones to experimental values of PZT ceramic. The proposed computational procedure has been applied to barium titanate, and its validity has been proved by comparison of identified ferroelectric properties with already-known ones of single crystal. Finally, the identified ferroelectric properties such as elastic compliance, dielectric and piezoelectric constants were presented for PZT single crystal.

収録刊行物

参考文献 (16)*注記

もっと見る

関連プロジェクト

もっと見る

詳細情報 詳細情報について

問題の指摘

ページトップへ