Effect of mn doping on sintering characteristics, microstructure and electrical properties of lead-free potassium sodium niobate ceramics - 文章详情页

作者：

Chu, Dongliang (Chu, Dongliang.) | Wang, Chao (Wang, Chao.) | Zhu, Mankang (Zhu, Mankang.) | Hou, Yudong (Hou, Yudong.) (学者：侯育冬)

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EI Scopus SCIE

摘要：

The　piezoelectric　ceramics　of　(K0.5Na0.5)NbO3+xMnCO3　(KNN+xMn)　were　prepared　by　the　conventional　solid-state　method,　and　the　effect　of　Mn　doping　on　the　sintering　characteristics,　microstructure　and　electrical　properties　of　the　ceramics　was　investigated.　The　results　show　that　proper　Mn　doping　promotes　sintering　performance,　induces　lattice　to　change　from　orthorhombic　to　tetragonal　and　improves　electrical　properties　of　KNN　ceramics.　When　the　content　of　Mn　is　2　mol%,　the　relative　density　of　KNN　ceramics　is　93.2%,　the　phase　structure　is　more　close　to　tetragonal　and　the　best　electric　properties　are　obtained,　such　as　Εr　is　526,　tanδ　is　2.3%,　d33　is　207　pC/N,　kp　is　45%　and　Qm　is　181.　©　2020,　National　Institute　of　Optoelectronics.　All　rights　reserved.

关键词：

Manganese Niobium compounds Potassium Sintering Sodium Microstructure Piezoelectric ceramics

作者机构：

[ 1 ] [Chu, Dongliang]Beijing Key Laboratory of Logistics System and Technology(School of Logistics, Beijing Wuzi University, Tongzhou District), Beijing; 101149, China
[ 2 ] [Wang, Chao]Beijing Key Laboratory of Logistics System and Technology(School of Logistics, Beijing Wuzi University, Tongzhou District), Beijing; 101149, China
[ 3 ] [Zhu, Mankang]Key Laboratory of Advanced Functional Materials of China Education Ministry, Beijing University of Technology, Beijing; 100124, China
[ 4 ] [Hou, Yudong]Key Laboratory of Advanced Functional Materials of China Education Ministry, Beijing University of Technology, Beijing; 100124, China

通讯作者信息：

[chu, dongliang]beijing key laboratory of logistics system and technology(school of logistics, beijing wuzi university, tongzhou district), beijing; 101149, china

电子邮件地址：

chudongliang6@126.com

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