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PI Ceramic: Pioneering Work In the Development of Lead-Free Piezoceramics Bears First Fruits
The first positive results from the use of lead-free piezoceramics are available for applications with dynamic control. In micropumps, ultrasonic nebulizers, and power ultrasonic transducers, as well as in various sensors, the BNT and KNN material systems can serve as an alternative to lead-containing materials.
For both material systems, PI Ceramic offers materials with different levels of technological maturity for customized developments. There are various challenges, as lead-free materials behave differently compared to PZT ceramics. For example, the voltage and current or the geometric dimensions of the components usually need to be adjusted to achieve the desired application-specific results. For each application, long-term stability and response to environmental conditions (temperature/humidity) must also be assessed.
Dr. Patrick Pertsch, Managing Director of PI Ceramic, emphasizes: “For several years, we have been conducting research into the possible applications of the BNT and KNN materials systems. We are now pleased to offer our customers the development of lead-free components for their systems.”
Background
To reduce the use of environmentally hazardous substances and to avoid potential environmental pollution, the European Commission is promoting the use of lead-free materials with the RoHS (Restriction of Hazardous Substances) Directive. Many technologies are affected, including the manufacture and use of piezoceramics. Although the PZT material system is still considered the gold standard for performance and reliability in piezoelectric applications, the demand for alternatives is increasing, particularly in medical applications.
PI Ceramic’s specialists will be happy to answer questions about lead-free piezoceramics and their possible applications at the SENSOR+TEST 2025 measurement fair, taking place from May 6 to 9, 2025, in Nuremberg (Germany).
PI Ceramic in Brief
Redefining the limits of what can be measured and moved, together with our customers: As a worldwide partner with over thirty years of expertise and more than 400 employees, PI Ceramic develops and manufactures piezoceramic components and subsystems for applications in the areas of medical technology, industrial ultrasonic sensors, and precision dosing. One hundred engineers develop customized solutions and provide advice and expertise. PI Ceramic is part of the PI Group, the innovation and market leader in high-precision positioning technology.