THE DEVELOPMENT AND USE ACOUSTOMICROSCOPE METHODS TO MONITOR MECHANICAL AND ELECTRICAL PROPERTIES OF DIELECTRIC CERAMICS
The methods of acoustic microscopic flaw detection (AMD-methods) were applied for piezoelectric materials studying. It is shown that the proposed methods provide an assessment of the quantitative values of a number of piezoceramics parameters - their density, porosity, acoustic wave velocities and attenuation coefficients. Acoustic imaging mode allows to determine the size of pores in the powder material, to observe the nature of their spatial distribution, to calculate some of its mechanical characteristics.