Relationship between Mechanical Loss and Phases of Physical Constants in Lead-Zirconate-Titanate Ceramics

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概要

• 論文の詳細を見る

• Mechanical loss in lead-zirconate-titanate (PZT) based piezoelectric ceramics was studied by introducing three complex physical constants: a complex elastic, a dielectric, and a piezoelectric constant. The elastic and dielectric losses had finite values, while the piezoelectric loss was negligibly small. More than 60% of the mechanical loss at resonance under a relatively low vibration-velocity was the elastic-origin component, and the rest was the dielectric-origin component. The dielectric-origin component rose sharply, however, as the vibration-velocity increased and became dominant at high vibration-velocity. The mechanical loss was reduced by doping Fe2O3 into the PZT, which was apparently caused by pinning of the ferroelectric domain wall.

• INSTITUTE OF PURE AND APPLIED PHYSICSの論文
• 1997-09-30

著者

• TAKAHASHI Sadayuki

  Research and Development Group, NEC Corporation

• Hirose Seiji

  Department Of Electrical And Information Engineering Yamagata University

• Sasaki Yasuhiro

  Research & Development Group and Material Development Center, NEC Corporation,

• Hirose Seiji

  Department of Engineering, Yamagata University, 4-3-16, Jyonan, Yonezawa-shi 992, Japan

• Takahashi Sadayuki

  Research and Development Group, NEC Corporation, 4-1-1, Miyazaki, Miyamae-ku, Kawasaki-shi 216, Japan

• Sasaki Yasuhiro

  Research and Development Group, NEC Corporation, 4-1-1, Miyazaki, Miyamae-ku, Kawasaki-shi 216, Japan

関連論文

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• Diagonally Symmetric Form Ultrasonic Motor Using LiNbO3 Plate
• Nonlinear Piezoelectric Effect in Ferroelectric Ceramics
• Basic Study of Threefold Rotatory Symmetric Form Quartz Vibrator for Triaxial Gyrosensor
• Relationship between Mechanical Loss and Phases of Physical Constants in Lead-Zirconate-Titanate Ceramics

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