Articles - Preparation and properties of Bi-based lead-free ceramic multilayer actuators
- Van-Quyet Nguyena, Hyoung-Su Hana, Han-Bok Leea, Jong Il Yoonb, Kyoung Kwan Ahnb and Jae-Shin Leea,*
- a School of Materials science and Engineering, University of Ulsan, Republic of Korea b School of Mechanical Engineering, University of Ulsan, Ulsan, Republic of Korea
Abstract
Lead-free (Bi0.5Na0.41K0.09)TiO3 (BNKT) multilayer ceramic actuators were prepared using tape-casting and screen-printing techniques. Co-firing behavior of BNKT/AgPd laminates was examined as a function of sintering temperature. It was found that co-firing induced bending and electrical properties were very sensitive to sintering condition. By optimizing sintering conditions, lead-free electrostrictive multilayer actuators with normalized strain Smax/Emax of 266 pm/V have been successfully fabricated, which is promising for lead-free actuator applications.
Keywords: Multilayer actuator, Internal electrode, Thermal shrinkage, Interface
This Article
Copyright 2019 International Orgranization for Ceramic Processing. All rights reserved.Clean-Energy Research Institute(CRI), Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea
E-mail: jcpr@hanyang.ac.kr