Journal of Inorganic Materials ›› 2014, Vol. 29 ›› Issue (1): 13-22.DOI: 10.3724/SP.J.1077.2014.10002

• Invited Review • Previous Articles     Next Articles

(K, Na)NbO3-based Lead-free Piezoceramics: Status, Prospects and Challenges

WANG Ke1, SHEN Zong-Yang1,2, ZHANG Bo-Ping3, LI Jing-Feng1   

  1. (1. State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China; 2. School of Materials Science and Engineering, Jiangxi Key Laboratory of Advanced Ceramic Materials, Jingdezhen Ceramic Institute, Jingdezhen 333403, China; 3. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China)
  • Received:2013-10-22 Revised:2013-10-30 Online:2014-01-20 Published:2013-12-09
  • Contact: WANG Ke.
  • Supported by:

    National Natural Science Foundation of China (51332002, 51302144); Ground Plan of Science and Technolagy in Jiangxi Province department of Education (KJLD13076)

Abstract: The past decade has witnessed the rapid development of (K,Na)NbO3 (KNN)-based lead-free piezoceramics. The present article reviews the current status of this system, with special emphasis on crystalline structure, piezoelectric performance and processing technologies based on the authors’ research work. In addition, the prospects and challenges are also analyzed according to the authors’ knowledge.

Key words: lead-free piezoceramics, (K, Na)NbO3, perovskite, ferroelectrics

CLC Number: