期刊
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
卷 25, 期 12, 页码 2701-2706出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2005.03.126
关键词
piezoelectric properties; niobates; lead-free piezoceramics
The market for piezoceramic components is dominated by lead-based PZT materials containing more than 60 wt.% lead. Since lead is a toxic heavy metal, it has become a great concern how to eliminate the use of PZT by replacing it with non-harmful materials while maintaining comparable piezoelectric properties. This was the objective of the European LEAF project within the GROWTH programme, ending in February 2004. In this project, alkali niobates were proposed as alternative piezoceramic materials, and special emphasis was given to potassium sodium mobate, (K, Na)NbO3. The partners of the project have developed lead-free ceramics that can be a competitive alternative to PZT for certain applications. Considerations on powder synthesis and ceramic processing, obtained properties and examples of industrial applications will be presented. (c) 2005 Elsevier Ltd. All rights reserved.
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