PZT to Lead Free Piezo Ceramics: A Review

Panda, PK and Sahoo, B (2015) PZT to Lead Free Piezo Ceramics: A Review. Ferroelectrics, 474. pp. 128-143. ISSN 0015-0193

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Abstract

The growth of piezo science is phenomenal since the discovery of piezoelectricity in 1880. Among various piezoelectric materials, lead zirconate titanate (PZT) is a very popular and exhaustively studied piezo system which allows synthesis of large number of materials with wide range of properties due to formation of solid solutions over large range of Zr:Ti ratio. Also, this system accommodates wide range of dopants for modification of crystal structure. Due to this versatile nature, PZT has emerged as very popular among users and researchers worldwide. However, considering the toxicity of lead oxide, development of lead free piezo ceramics is encouraged in recent years. Some lead free piezo material systems such as BNT, BKT, KNN, BZT-BCT have been explored. However, development of lead free piezo devices and their performance in comparison with PZT devices are yet to be established. At this juncture, it was felt that an article reviewing the current status of development of piezo materials highlighting the change from PZT to various lead free systems would be of very much interest to the researchers. Therefore, efforts are made to bring out the recent developments on R&D of piezo materials in this review article.

Item Type:	Article
Uncontrolled Keywords:	PZT; ML stack; actuator; lead free piezo; tri critical point
Subjects:	CHEMISTRY AND MATERIALS > Chemistry and Materials (General) CHEMISTRY AND MATERIALS > Metals and Metallic Materials
Depositing User:	Mr. BS Shivaram
Date Deposited:	03 Mar 2015 04:02
Last Modified:	03 Mar 2015 04:02
URI:	http://nal-ir.nal.res.in/id/eprint/12088

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