Effects of the post-annealing reductive-atmosphere-sintered (K0.48Na0.52)NbO3 lead-free piezoceramics

doi:10.1016/j.ceramint.2020.07.222

	Effects of the post-annealing reductive-atmosphere-sintered (K0.48Na0.52)NbO3 lead-free piezoceramics
	Wang, Bo1,2 ; Liu, Feng 1; Zhang, Faqiang 1; Chen, Guanyu 1; Liu, Zhifu 1; Li, Yongxiang1,2
	2020-12-01
发表期刊	CERAMICS INTERNATIONAL (IF:5.1[JCR-2023],4.7[5-Year])
ISSN	0272-8842
卷号	46 期号:17 页码:27373-27380
发表状态	已发表
DOI	10.1016/j.ceramint.2020.07.222
摘要	Post-annealing in a weak oxidative atmosphere (a partial pressure of oxygen P(O-2) = 1 x 10(-6) MPa in high purity N2) was applied to the reductive-atmosphere-sintered (K0.48Na0.52)NbO3 lead-free piezoceramics. Structural characterization indicated that the Nb-O bond length and local structure order degree of the (K0.48Na0.52)NbO3 ceramics increased after post-annealing. The dielectric and impedance spectra analysis revealed that the oxygen vacancies could be compensated after the post-annealing process. The piezoelectric performances of the KNN ceramics post-annealed at 900 degrees C for 4 h were comparable with that of counterpart sintered in the air. These results indicate that the post-annealing treatment may provide a prospective approach for the fabrication of base metal electrode-cofired KNN multilayer piezoelectric devices.
关键词	Lead-free piezoelectric ceramic KNN Reductive atmosphere Post-annealing Oxygen vacancy
收录类别	SCI ; SCIE ; EI
资助项目	National Natural Science Foundation of China (NSFC)[51802330][61601444] ; NSFC-Guangdong Province Joint Fund[U1501246]
WOS研究方向	Materials Science
WOS类目	Materials Science, Ceramics
WOS记录号	WOS:000577586400102
出版者	ELSEVIER SCI LTD
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/123472
专题	物质科学与技术学院_博士生物质科学与技术学院_特聘教授组_李永祥组
通讯作者	Zhang, Faqiang; Liu, Zhifu
作者单位	1.Chinese Acad Sci, Shanghai Inst Ceram, CAS Key Lab Inorgan Funct Mat & Devices, Shanghai 200050, Peoples R China; 2.Shanghai Tech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China
第一作者单位	物质科学与技术学院
推荐引用方式 GB/T 7714	Wang, Bo,Liu, Feng,Zhang, Faqiang,et al. Effects of the post-annealing reductive-atmosphere-sintered (K0.48Na0.52)NbO3 lead-free piezoceramics[J]. CERAMICS INTERNATIONAL,2020,46(17):27373-27380.
APA	Wang, Bo,Liu, Feng,Zhang, Faqiang,Chen, Guanyu,Liu, Zhifu,&Li, Yongxiang.(2020).Effects of the post-annealing reductive-atmosphere-sintered (K0.48Na0.52)NbO3 lead-free piezoceramics.CERAMICS INTERNATIONAL,46(17),27373-27380.
MLA	Wang, Bo,et al."Effects of the post-annealing reductive-atmosphere-sintered (K0.48Na0.52)NbO3 lead-free piezoceramics".CERAMICS INTERNATIONAL 46.17(2020):27373-27380.