LEAF: Lead-free piezoelectric ceramics based on alkaline niobates

• Unité de recherche: PCRD EU
• Numéro de projet: 00.0441
• Titre du projet anglais: LEAF: Lead-free piezoelectric ceramics based on alkaline niobates

Mots-clé (Anglais)

Piezoelectrics; lead-free; ultrasonic imaging; medical imaging; ceramics; biocompatibility;
Industrial Manufacture; Materials Technology

Autre Numéro de projet (Anglais)

EU project number: G5RD-2001-00431

Programme de recherche (Anglais)

EU-programme: 5. Frame Research Programme - 1.3.8 Generic R&D activities

Description succincte (Anglais)

See abstract

Partenaires et organisations internationales (Anglais)

Coordinator: Ferroperm Piezoceramics A/S (DK)

Résumé des résultats (Abstract) (Anglais)

The market for piezoceramic components is dominated by lead-based PZT materials containing more than 60 wt% lead. Since lead is highly toxic, it has become a great concern how to eliminate the use of PZT by replacing it by non-harmful materials while maintaining comparable piezoelectric properties. This is the objective of the present proposal. Alkaline niobates are proposed as alternative piezoceramic materials. Niobate ceramics are known to be very difficult to densify fully. A combination of optimised compositions, innovative powder synthesis and a range of ceramic processing methods is proposed for obtaining lead-free materials suitable for industrial applications. 3 end-users in the project will test the new materials in industrial devices.

Expected results: a material comparable to PZT, and a high-temperature one with lower sensitivity.

Références bases de données (Anglais)

Swiss Database: Euro-DB of the
State Secretariat for Education and Research
Hallwylstrasse 4
CH-3003 Berne, Switzerland
Tel. [phone]
Swiss Project-Number: 00.0441