Filled oxygen-deficient strontium barium niobates

Jason H. Chan, Jonathan A. Bock, Hanzheng Guo, Susan Trolier-McKinstry, Clive A. Randall

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Filled strontium barium niobate (SBN, SrxBa6− xNb10O30−δ) compositions from the barium end-member to a Sr:Ba ratio of 80:20 were fabricated using conventional sintering under oxygen-deficient conditions. Single-phase specimens were obtained when sintered at 1350°C under a reducing condition of about 1.0 × 10−16 atm pO2. X-ray diffraction and energy dispersive spectroscopy using scanning electron microscopy and transmission electron microscopy were used to confirm the phase-purity. Lattice parameters derived from Rietveld refinements were used to trace Vegard's Law over the solid solution. It was found that Vegard's Law is followed over two ranges, which is believed to be due to preferential site occupancy of the A sites as the Sr content changes. The successful fabrication of filled SBN bronzes provides an avenue for correlating trends in electrical characteristics of the SBN solid solution.

Original languageEnglish (US)
Pages (from-to)774-782
Number of pages9
JournalJournal of the American Ceramic Society
Volume100
Issue number2
DOIs
StatePublished - Feb 1 2017

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Strontium
Barium
Solid solutions
Oxygen
Rietveld refinement
Bronze
Lattice constants
Energy dispersive spectroscopy
Sintering
Transmission electron microscopy
Fabrication
X ray diffraction
Scanning electron microscopy
Chemical analysis

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

Cite this

Chan, Jason H. ; Bock, Jonathan A. ; Guo, Hanzheng ; Trolier-McKinstry, Susan ; Randall, Clive A. / Filled oxygen-deficient strontium barium niobates. In: Journal of the American Ceramic Society. 2017 ; Vol. 100, No. 2. pp. 774-782.
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Filled oxygen-deficient strontium barium niobates. / Chan, Jason H.; Bock, Jonathan A.; Guo, Hanzheng; Trolier-McKinstry, Susan; Randall, Clive A.

In: Journal of the American Ceramic Society, Vol. 100, No. 2, 01.02.2017, p. 774-782.

Research output: Contribution to journalArticle

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AU - Bock, Jonathan A.

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