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Lead-free piezoceramics: great potential for medical applications
CeramTec's BNT-BT-based piezoceramics are applicable in the medical field, where lead-free piezo can provide an alternative for high-power ultrasound and bubble detection systems.
www.ceramtec-group.com

CeramTec, the high-performance ceramics specialist, has developed a proprietary bismuth sodium titanate-barium titanate (BNT-BT) based piezoceramic that offers similar performance to conventional lead zirconate titanate (PZT) piezoceramics for many applications, but with one major advantage: it does not contain lead. This is particularly exciting for the medical field, where lead-free piezo can provide an alternative for high-power ultrasound and bubble detection systems.
- Innovative: Piezoceramics without lead in medical applications
- Sustainable: BNT-BT has a comparatively low environmental impact
Exciting: lead-free alternatives for ultrasonic sensors for liquid management and high-power ultrasonics
Piezoceramics are at the heart of many medical applications, including sensors and transducers, surgical instruments, as well as ultrasound therapy equipment and imaging systems. In all these applications, piezoceramics convert mechanical excitation such as pressure and acceleration into electrical signals – or vice versa. They then convert the electrical signals into mechanical motion or vibration. Until now, piezoceramics have only been able to do this because of their lead base – now CeramTec has a lead-free alternative for a variety of specific medical piezoceramic applications.
Sustainable material performance
CeramTec is committed to constantly researching and developing new materials to help customers moving towards future-oriented sustainable solutions. This also applies to piezoceramics: After intensive development work, CeramTec has formulated an alternative piezoceramic material, with high performance: BNT-BT. This material has some key environmental benefits: significantly lower toxicity as well as reduced impact on human health and the environment compared to PZT and other lead-free alternatives such as potassium sodium niobate (KNN).
Piezoceramics are at the heart of many medical applications, including sensors and transducers, surgical instruments, as well as ultrasound therapy equipment and imaging systems. In all these applications, piezoceramics convert mechanical excitation such as pressure and acceleration into electrical signals – or vice versa. They then convert the electrical signals into mechanical motion or vibration. Until now, piezoceramics have only been able to do this because of their lead base – now CeramTec has a lead-free alternative for a variety of specific medical piezoceramic applications.
Sustainable material performance
CeramTec is committed to constantly researching and developing new materials to help customers moving towards future-oriented sustainable solutions. This also applies to piezoceramics: After intensive development work, CeramTec has formulated an alternative piezoceramic material, with high performance: BNT-BT. This material has some key environmental benefits: significantly lower toxicity as well as reduced impact on human health and the environment compared to PZT and other lead-free alternatives such as potassium sodium niobate (KNN).

