INVESTIGATION OF THE INFLUENCE OF INCREASED TEMPERATURE ON THE TECHNICAL CHARACTERISTICS OF PIEZO ELEMENTS FROM CERAMICS OF THE ZIRCONATE-TITANATE LEAD TYPE

Abstract

Background. The most important stimulus for the study of piezoceramic materials is the increasing requirements for expanding the operating temperature range, improving metrological characteristics, and resistance to destabilizing factors of devices created on their basis. At the same time, along with the search for new promising materials and the development of their manufacturing technology aimed at solving the noted problems, it is increasingly necessary to develop high-temperature textured materials for the manufacture of multilayer piezoelectric transducers. Materials and methods. Research methods were chosen based on the possibility of obtaining the most complete information about the change in the structure and properties of the material after sintering and the polarization of products. When performing research, thermal training of piezoelectric elements was carried out. In the course of the work, measurements of the geometric dimensions and electrical parameters of piezoceramic elements were carried out. Results. The main technical characteristics of the piezoelectric module intended for operation as part of laser gyroscopes have been confirmed. It was found that in order to obtain denser ceramics, it is required to develop a method of hot pressing. The electrical capacitance of the piezoceramic elements meets the requirements of the customer.

Keywords

• piezoelectric module
• piezoceramic element
• electric thermal training
• capacitance
• leakage current