CeramTec GmbH products

Piezo-ceramic multilayer actuators must be effectively protected against moisture to ensure reliable and lasting operation. Conventional polymer or ceramic coatings can only offer this to a certain degree. Tests have shown that leakage current greater than 1 mA already occurs here within a few seconds. CeramTec has an answer to this problem: Hermetically sealed actuators with active moisture suppression. No other company in the world offers this solution.

Power conversion composite transducers, also referred to as Langevin-Bolt transducers (LBT), are made from specially developed piezo-ceramics characterized by low dielectric loss and high mechanical Q-factors. CeramTec offers the material types SONOX^® P4 and SONOX^® P8 with different property profiles. SONOX^® P4 is suitable for ultrasonic cleaning and non-destructive testing transducers. Its high coupling factors, medium-range Q-factors, and excellent mechanical stability permit high oscillation amplitudes at resonance. The achievable active power output in transducer configurations (emitting unilaterally in water) varies between approximately 7 and 10 W/cm². The maximum operating temperature of the ceramic is 125°C. Its compressive strength depends on the mounting conditions (homogeneous load distribution) with 70 maximum MPa in continuous mode.