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Thermal Degradation And Aging Of High Temperature Piezoelectric Ceramics, Sunil W. Gotmare
Thermal Degradation And Aging Of High Temperature Piezoelectric Ceramics, Sunil W. Gotmare
University of Kentucky Master's Theses
Piezoelectric materials have numerous applications like high temperature accelerometers, pressure, flow and NDT transducers, acoustic emission, ultrasonic cleaning, welding, high voltage generators, medical therapy etc. The commonly used piezoelectric material, PZT continues to dominate the commercial market for piezoelectric actuators applications. The primary limitations of PZT are the lower Curie temperature TC <390oC and rapid thermal degradation avobe 200oC.
Continuing efforts are focused on the development of piezoelectric materials suitable for high temperature applications >200oC. These materials will be very useful for making sensors for space exploration, oil and geothermal well drilling tools, oil …