Surface characterization of PZN ceramics prepared by a columbite B-site precursor

Pyrochlore-type PZN ceramics have been obtained from a two-stage process with columbite B-site precursor. In order to determine the chemical composition of these samples, a combination between X-ray diffraction (XRD) and X-ray photoelectron spec-troscopy (XPS) techniques has been performed. XRD anal...

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Bibliographic Details
Main Authors: Srisombat L.-O., Ngamjarurojana A., Yimnirun R., Ananta S.
Format: Conference or Workshop Item
Language:English
Published: 2014
Online Access:http://www.scopus.com/inward/record.url?eid=2-s2.0-79955699336&partnerID=40&md5=f5b7e8354ff33bfef7fc9ca326d1db09
http://cmuir.cmu.ac.th/handle/6653943832/6150
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Institution: Chiang Mai University
Language: English
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Summary:Pyrochlore-type PZN ceramics have been obtained from a two-stage process with columbite B-site precursor. In order to determine the chemical composition of these samples, a combination between X-ray diffraction (XRD) and X-ray photoelectron spec-troscopy (XPS) techniques has been performed. XRD analysis revealed the coexistence of unreacted PbO starting precursor and major phase of the pyrochlore-type PZN phase as average composition from the bulk volume. While different binding energies (multicomponents) of each chemical element e.g. Pb, Zn, Nb and O from the surface of PZN ceramics were identified by XPS, indicating inhomogeneous surface chemical distribution within these columbite-route samples.