KLI

0.96K0.5Na0.5NbO3-0.04SrTiO3 세라믹스의 상전이와 압전 특성에 대한 Li2CO3 도핑 효과

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Abstract
It was reported that a tetragonal phase can be stabilized with maintaining good piezoelectric properties when Na0.5K0.5NbO3 (KNN) is modified with 0.06 mol SrTiO3. However, such a high amount of SrTiO3 leads not only to poor sinterability but low Curie temperature (TC). To maintain high TC with good piezoelectric properties in KNN-based lead-free piezoelectric ceramics, this study investigates the effect of Li-doping on the dielectric and piezoelectric properties of 0.96Na0.5K0.5NbO3–0.04SrTiO3 (KNN-4ST) ceramics. As a result, the orthorhombic-tetragonal phase transition was observed at 2 mol% Li2CO3 modified KNN-4ST ceramics, whose TC, d33 and kp values are 328℃, 165pC/N and 0.33, respectively.
Author(s)
Effect of Li2CO3 Doping on Phase Transition and Piezoelectric Properties of 0.96K0.5Na0.5NbO3-0.04SrTiO3 Ceramics
Issued Date
2023
박재영
즈엉 짱 안
이상섭
안창원
김병우
한형수
이재신
Type
Article
Keyword
Lead-freePiezoelectricTetragonalLi2CO3
DOI
10.4313/JKEM.2023.36.5.12
URI
https://oak.ulsan.ac.kr/handle/2021.oak/16114
Publisher
전기전자재료학회논문지
Language
한국어
ISSN
1226-7945
Citation Volume
36
Citation Number
5
Citation Start Page
513
Citation End Page
519
Appears in Collections:
Engineering > Material Engineering
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