A two-stage solid-state reaction to lead nickel niobate powders
A perovskite phase of Pb(Ni1/3Nb2/3)O3 or PNN powders has been synthesized by a rapid vibro-milling technique. Both NiNb2O6 and Ni4Nb2O9 have been employed as nickel niobate precursors, with the formation of the PNN phase investigated as a function of calcination conditions by DTA and XRD techniques...
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| Main Authors: | , , |
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| Format: | Conference or Workshop Item |
| Published: |
2014
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| Online Access: | http://www.scopus.com/inward/record.url?eid=2-s2.0-58449117694&partnerID=40&md5=4817287c7f935cc92da3e6abc0ceca36 http://cmuir.cmu.ac.th/handle/6653943832/5129 |
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| Institution: | Chiang Mai University |
| Summary: | A perovskite phase of Pb(Ni1/3Nb2/3)O3 or PNN powders has been synthesized by a rapid vibro-milling technique. Both NiNb2O6 and Ni4Nb2O9 have been employed as nickel niobate precursors, with the formation of the PNN phase investigated as a function of calcination conditions by DTA and XRD techniques. Morphology and phase composition have been determined via a combination of SEM and EDX techniques. The nickel niobate precursor and calcination condition have been found to have a pronounced effect on the phase and morphology evolution of the calcined PNN powders. It is seen that optimization of calcination conditions can lead to a single-phase PNN in both methods. However, the formation temperature for single-phase PNN powders was lower for the synthetic method employing a NiNb2O6 precursor. Copyright © 2007 MS&T'07®. |
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