High Temperature‐Insensitive Electrostrain Obtained in (K, Na)NbO3‐Based Lead‐Free Piezoceramics

• Published in: Small (Weinheim an der Bergstrasse, Germany) Vol. 20; no. 51; pp. e2407848 - n/a
• Main Authors: Liu, Huan, Yang, Ziqi, Su, Bin, Hao, Yijin, Feng, Tian‐Yi, Zhang, Bo‐Ping, Li, Jing‐Feng
• Format: Journal Article
• Language: English
• Published: Weinheim Wiley Subscription Services, Inc 01.12.2024
• Subjects: Actuators; defect engineering; Defects; Dipole moments; Domains; Electric fields; electrostrain; hierarchical domain configurations; High temperature; lead‐free piezoelectric; Niobates; Piezoelectric ceramics; Piezoelectricity; potassium‐sodium niobate; Room temperature; Stability; Temperature; temperature stability

Over the last decades, notable progress is achieved in (K, Na)NbO3 (KNN)‐based lead‐free piezoceramics. However, more studies are conducted to increase its piezoelectric charge coefficient (d33). For actuator applications, piezoceramics need high electric‐field induced strain under low electric fiel...