鉛ジルコナートチタナートよりピエゾ電気性が強い分子ペロブスキート固体溶液
Wei-Qiang Liao1, Dewei Zhao1, Yuan-Yuan Tang1
1Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People's Republic of China.
まとめ
研究者らは新しい分子ペロブスキート型ピエゾ電気材料を開発した. これらの材料はセラミックに匹敵するピエゾ電気係数を示し, ウェアラブルデバイスの可能性を秘めています.
科学分野:
- 材料科学
- 固体物理学
- クリスタルグラフィー
背景:
- ピエゾ電気材料は 機械的なストレスの下で 電気を生成し センサーには不可欠です
- モルフォトロプ的相境界 (MPB) を有するセラミック固体溶液は,最適なピエゾ電気効果を提供します.
- セラミックの機械的性質の限界は,特定のアプリケーションを妨げます.
研究 の 目的:
- 新しい分子ペロブスキットの piezoelectric 材料を合成するために
- (TMFM) x ((TMCM) 1-xCdCl3 固体溶液のピエゾ電気的性質を調査する.
- 強化されたピエゾ電気係数を持つ組成物を識別する.
主な方法:
- 組成範囲 (0 ≤ x ≤ 1) で (TMFM) x(TMCM) 1-xCdCl3の固体溶液の合成
- モノクリニックと六角形の相境界 (MPB) を識別するための結晶構造の特徴化.
- 様々な組成物のピエゾ電気係数 (d33) の測定
主要な成果:
- 合成された固体溶液におけるモノクリニックと六角形の相境界 (MPB) が特定された.
- 特定の組成は,約1540 pC/Nのピエゾ電気係数 (d33) を示した.
- この性能は確立された高性能ピエゾ電気陶器に匹敵する.
結論:
- 合成された分子ペロブスキート固体溶液は,伝統的なピエゾ電気陶器の有望な代替品を提供します.
- 材料は,特に特定されたMPBの近くに,高いピエゾ電気性能を示しています.
- 潜在的応用には,高度なウェアラブルピエゾ電気装置が含まれます.
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