鉛ジルコナートチタナート陶器
Jinglei Li1, Wanbo Qu2, John Daniels3
1Electronic Materials Research Laboratory (Key Lab of Education Ministry), State Key Laboratory for Mechanical Behavior of Materials and School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
Science (New York, N.Y.)
|April 6, 2023
まとめ
研究者は,マイクロプレートテンプレートを使用して,鉛ジルコナートチタナート (PZT) 陶器の新しいテクスチャリングプロセスを開発しました. この方法は,結晶粒の向きと組成を制御することによって,ピエゾ電気的性質を高めます.
科学分野:
- 材料科学
- セラミック工学
- 固体物理学
背景:
- 鉛ジルコナートチタナート (PZT) 陶器のピエゾ電気特性はいろいろな用途に不可欠です.
- これらの特性を高めるには,結晶粒子の方向性を正確に制御する必要があります.
- 繊細なPZTセラミクスの製造には,部品間の化学反応を含む大きな課題があります.
研究 の 目的:
- テクスチャーされたPZTセラミクスを製造するための新しい種子パシベートされたテクスチャー処理を提示する.
- 制御された穀物の成長のために,新たに開発されたバリウムジルコネートチタナート (BZT) のマイクロプレートレットテンプレートを利用する.
- 既存の方法の限界,特に化学反応性の問題を克服する.
主な方法:
- BZTマイクロプレートレットのテンプレートを使用して,種子パッシブ化されたテクスチャー処理が採用されました.
- チタンに富んだPZT層が成長し,層間の拡散を制御する組成ができました.
- このプロセスは,PZT粉とチタン酸テンプレートの間の化学反応を抑制するために最適化されました.
主要な成果:
- 結晶粒子を並べたPZTセラミクスを成功裏に製造した.
- 卓越したピエゾ電気特性:キュリー温度360°C,d33760 pC/N,g33100 Vm/N.
- 高い電機結合因数 k33 0.85 を証明した.
結論:
- 種子パッシベーションによるテクスチャリングプロセスは,優れたピエゾ電気性能を持つテクスチャリングされたPZTセラミクスを効果的に生成します.
- この方法により,有害な化学反応を緩和して,テクスチャのロムベドールPZTセラミクスを製造することができます.
- この発見により 特殊な特性を備えた 先進的なピエゾ電気材料の開発が 可能になりました
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