Phase and chemical characterization of perovskite nickel niobate ceramics fabricated via a precursor method

Phase and chemical characterization of perovskite nickel niobate ceramics fabricated via a precursor method

Perovskite relaxor ferroelectric lead nickel niobate (PNN) ceramics were fabricated by using B-site precursor method, in which columbite-NiNb 2O6 was employed as key precursor. It has been found that optimization of sintering condition can successfully lead to highly dense PNN ceramics. Although XRD...

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Bibliographic Details
Main Authors: Laongnuan Srisombat, Orawan Khamman, Rattikorn Yimnirun, S. Supon Ananta, T. Randall Lee
Format: Journal
Published: 2018
Subjects:
Biochemistry, Genetics and Molecular Biology
Chemistry
Materials Science
Mathematics
Physics and Astronomy
Online Access:https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=67650505597&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/48922
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Institution: Chiang Mai University
Description
Summary:Perovskite relaxor ferroelectric lead nickel niobate (PNN) ceramics were fabricated by using B-site precursor method, in which columbite-NiNb 2O6 was employed as key precursor. It has been found that optimization of sintering condition can successfully lead to highly dense PNN ceramics. Although XRD analysis revealed that the ceramics consist of pure perovskite phase, significant fluctuation in chemical composition, precipitation of unreacted precursor and the formation of unwanted phases were found via a combination between SEM EDX and XPS techniques.

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