Lifetime and degradation mechanism of multilayer ceramic actuator

被引：50

作者：

Thongrueng, J

Tsuchiya, T

Nagata, K

机构：

[1] Natl Def Acad, Dept Elect Engn, Yokosuka, Kanagawa 2398686, Japan

[2] Sci Univ Tokyo, Dept Mat Sci & Technol, Noda, Chiba 2788510, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1998年 / 37卷 / 9B期

关键词：

lifetime; degradation; displacement; multilayer ceramic actuator; destruction; migration; microcrack; exhaustion;

D O I：

10.1143/JJAP.37.5306

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The lifetime and degradation mechanism of the multilayer ceramic actuator (MCA) were studied. The effects of temperature, humidity and load on the lifetime of the MCA under high DC or 50 Hz unipolar AC voltages are discussed: The logarithm of the lifetime had a linear relationship with the logarithm of the electric field. The lifetime decreased as the applied voltage was increased, along with increased temperature and humidity. The main causes of MCA degradation were concluded to be vibration and isolated destruction.

引用

页码：5306 / 5310

页数：5

共 5 条

[1] ELECTRICAL PHENOMENA IN BARIUM-TITANATE CERAMICS [J].