Phase structure, morphology, and Raman characteristics of NaNbO3 particles synthesized by different methods

Yunfei Chang, Zupei Yang, Mingyuan Dong, Zonghuai Liu, Zenglin Wang

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

NaNbO3 (NN) particles were synthesized by using conventional mixed-oxide (CMO), molten salt synthesis (MSS) and topochemical micro-crystal conversion methods (TMC), respectively. The effects of preparation methods on the phase structure, morphology and Raman characteristics of the NaNbO3 particles were investigated. The results show that the NN particles prepared by conventional mixed-oxide and molten salt synthesis methods are all of orthorhombic structure in Pbma space group. Furthermore, those particles have equiaxial morphology. The single-crystal NaNbO3 particles synthesized by the topochemical micro-crystal conversion method are of pseudocubic structure. Moreover, they are of plate-like shape with a high aspect ratio and a high (h 0 0) degree of orientation, which is very promising as template for texturing (K, Na)NbO3 (KNN) based ceramics. Besides, all the spectra lines in the Raman spectra can be attributed to the internal modes of NbO6 octahedron, and they prove that the particles synthesized by the different methods have different structure types.

Original languageEnglish (US)
Pages (from-to)538-542
Number of pages5
JournalMaterials Research Bulletin
Volume44
Issue number3
DOIs
StatePublished - Mar 5 2009

Fingerprint

Phase structure
Molten materials
Salts
Crystals
Oxides
Texturing
Raman scattering
Aspect ratio
molten salts
Single crystals
mixed oxides
synthesis
high aspect ratio
crystals
line spectra
sodium niobate
templates
ceramics
Raman spectra
salts

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Chang, Yunfei ; Yang, Zupei ; Dong, Mingyuan ; Liu, Zonghuai ; Wang, Zenglin. / Phase structure, morphology, and Raman characteristics of NaNbO3 particles synthesized by different methods. In: Materials Research Bulletin. 2009 ; Vol. 44, No. 3. pp. 538-542.
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Phase structure, morphology, and Raman characteristics of NaNbO3 particles synthesized by different methods. / Chang, Yunfei; Yang, Zupei; Dong, Mingyuan; Liu, Zonghuai; Wang, Zenglin.

In: Materials Research Bulletin, Vol. 44, No. 3, 05.03.2009, p. 538-542.

Research output: Contribution to journalArticle

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