Effects of Vibration Stress and Temperature on the Characteristics of Piezoelectric Ceramics under High Vibration Amplitude Levels Measured by Electrical Transient Responses
Effects of Vibration Stress and Temperature on the Characteristics of Piezoelectric Ceramics under High Vibration Amplitude Levels Measured by Electrical Transient Responses
复制标题
通过电瞬态响应测量高振动幅度下振动应力和温度对压电陶瓷特性的影响
DOI：
10.1143/jjap.38.5581
复制
发表时间：
1999
影响因子：
1.5
通讯作者：
S. Ueha
中科院分区：
文献类型：
--
作者：
M. Umeda;Kentaro Nakamura;S. Ueha
本文提出了一种基于电瞬态响应技术的压电陶瓷在高振幅共振水平下的特性评估方法。对低Q和高Q材料进行了测量，得到了振动应力对材料性能的影响，而不影响温度。结果表明，对于低Q材料，损耗的增加主要是由振动应力引起的，而对于高Q材料，损耗的增加是由振动应力和温度升高共同引起的。结果表明，对于某些高Q材料，在低振动水平下评价压电材料是没有意义的，因为在高振动水平下，压电材料的特性会发生不同的变化。力因子主要受温度的影响，尽管其行为因材料成分而异。
This paper presents a characteristic evaluation of piezoelectric ceramics at high vibration amplitude levels of resonance, based on the electrical transient response technique. Low-Q and high-Q materials are measured, and the effect of vibration stress is obtained without affecting temperature. It is revealed that for low-Q materials an increase of loss is caused mainly by the vibration stress, while for high-Q materials, it is caused by both the vibration stress and the temperature increase. The results show that in some high-Q materials, it is meaningless to evaluate the piezoelectric materials at low vibration level, since the characteristics change variously at high vibration levels. The force factor is changed mainly by the temperature, although its behavior is different, depending on material composition.