VIBRATION-LEVEL CHARACTERISTICS FOR IRON-DOPED LEAD-ZIRCONATE-TITANATE CERAMIC

被引：45

作者：

TAKAHASHI, S

HIROSE, S

机构：

[1] R and D Group NEC Corporation, Kawasaki

[2] Yamagata University, Yonezawa

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1993年 / 32卷 / 5B期

关键词：

FERROELECTRIC; PIEZOELECTRIC CERAMIC; VIBRATION LEVEL; CONSTANT CURRENT DRIVING; HEAT GENERATION; ACCEPTOR DOPANT; DOMAIN WALL PINNING EFFECT;

D O I：

10.1143/JJAP.32.2422

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Vibration-level characteristics for Fe-doped lead-zirconate-titanate ceramic were studied using the constant current driving method. It was found that mechanical Q was markedly decreased with increasing vibration level, accompanying a lot of heat generation. The other electromechanical characteristics were slightly changed. The heat generation was found to decrease with increasing Fe doping concentration up to approximately 2 at. %, and was found to show a minimum for lead-zirconate-titanate with the basic composition close to the morphotrophic phase boundary. It was assumed that the heat generation was mainly caused by ferroelectric domain wall hysteresis loss.

引用

页码：2422 / 2425

页数：4

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