CAS OpenIR  > 中科院上海应用物理研究所2011-2019年
Nanoscale potassium niobate crystal structure and phase transition
Chen, Haiyan; Zhang, Yixuan; Lu, Yanling
2011
Source PublicationNANOSCALE RESEARCH LETTERS
ISSN1931-7573
Volume6
AbstractNanoscale potassium niobate (KNbO(3)) powders of orthorhombic structure were synthesized using the sol-gel method. The heat-treatment temperature of the gels had a pronounced effect on KNbO(3) particle size and morphology. Field emission scanning electron microscopy and transmission electron microscopy were used to determine particle size and morphology. The average KNbO(3) grain size was estimated to be less than 100 nm, and transmission electron microscopy images indicated that KNbO(3) particles had a brick-like morphology. Synchrotron X-ray diffraction was used to identify the room-temperature structures using Rietveld refinement. The ferroelectric orthorhombic phase was retained even for particles smaller than 50 nm. The orthorhombic to tetragonal and tetragonal to cubic phase transitions of nanocrystalline KNbO(3) were investigated using temperature-dependent powder X-ray diffraction. Differential scanning calorimetry was used to examine the temperature dependence of KNbO(3) phase transition. The Curie temperature and phase transition were independent of particle size, and Rietveld analyses showed increasing distortions with decreasing particle size.
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000296260400003
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/12869
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Chen, Haiyan,Zhang, Yixuan,Lu, Yanling. Nanoscale potassium niobate crystal structure and phase transition[J]. NANOSCALE RESEARCH LETTERS,2011,6.
APA Chen, Haiyan,Zhang, Yixuan,&Lu, Yanling.(2011).Nanoscale potassium niobate crystal structure and phase transition.NANOSCALE RESEARCH LETTERS,6.
MLA Chen, Haiyan,et al."Nanoscale potassium niobate crystal structure and phase transition".NANOSCALE RESEARCH LETTERS 6(2011).
Files in This Item: Download All
File Name/Size DocType Version Access License
Nanoscale potassium (5811KB) 开放获取LicenseView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Chen, Haiyan]'s Articles
[Zhang, Yixuan]'s Articles
[Lu, Yanling]'s Articles
Baidu academic
Similar articles in Baidu academic
[Chen, Haiyan]'s Articles
[Zhang, Yixuan]'s Articles
[Lu, Yanling]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Chen, Haiyan]'s Articles
[Zhang, Yixuan]'s Articles
[Lu, Yanling]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Nanoscale potassium niobate crystal structure and phase transition.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.