Molten salt synthesis of anisometric particles in the SrO-Nb 2O5-BaO system

Cihangir Duran; Gary L. Messing; Susan Trolier-McKinstry

doi:10.1016/j.materresbull.2004.05.006

Molten salt synthesis of anisometric particles in the SrO-Nb ₂O₅-BaO system

Cihangir Duran, Gary L. Messing, Susan Trolier-McKinstry

Research output: Contribution to journal › Article › peer-review

48 Scopus citations

Abstract

Acicular particles of KSr₂Nb₅O₁₅, Sr _0.5Ba_0.5Nb₂O₆, and SrNb ₂O₆ were synthesized in the SrO-BaO-Nb₂O ₅ system, using KCl or SrCl₂·6H₂O salts. In the SrCl₂·6H₂O + Nb₂O₅ system, acicular SrNb₂O₆ particles were formed by a solid state reaction between the salt and Nb₂O₅. Large, irregularly shaped (Sr-rich) Sr₂Nb₂O₇ particles formed with increasing reaction temperature and time. Small but finite solubility of SrO in the KCl + SrNb₂O₆ system favored the formation of acicular KSr₂Nb₅O₁₅ and blade-like Sr₂Nb₂O₇ particles (at higher temperatures). Uniformly sized, acicular KSr₂Nb₅O₁₅ particles were easier to reproduce compared to the formation of acicular Sr _0.5Ba_0.5Nb₂O₆ and SrNb ₂O₆ particles.

Original language	English (US)
Pages (from-to)	1679-1689
Number of pages	11
Journal	Materials Research Bulletin
Volume	39
Issue number	11
DOIs	https://doi.org/10.1016/j.materresbull.2004.05.006
State	Published - Sep 1 2004

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.materresbull.2004.05.006

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@article{a74ea3a178d14e789ebe0e9b18ed4b9b,

title = "Molten salt synthesis of anisometric particles in the SrO-Nb 2O5-BaO system",

abstract = "Acicular particles of KSr2Nb5O15, Sr 0.5Ba0.5Nb2O6, and SrNb 2O6 were synthesized in the SrO-BaO-Nb2O 5 system, using KCl or SrCl2·6H2O salts. In the SrCl2·6H2O + Nb2O5 system, acicular SrNb2O6 particles were formed by a solid state reaction between the salt and Nb2O5. Large, irregularly shaped (Sr-rich) Sr2Nb2O7 particles formed with increasing reaction temperature and time. Small but finite solubility of SrO in the KCl + SrNb2O6 system favored the formation of acicular KSr2Nb5O15 and blade-like Sr2Nb2O7 particles (at higher temperatures). Uniformly sized, acicular KSr2Nb5O15 particles were easier to reproduce compared to the formation of acicular Sr 0.5Ba0.5Nb2O6 and SrNb 2O6 particles.",

author = "Cihangir Duran and Messing, {Gary L.} and Susan Trolier-McKinstry",

note = "Funding Information: This work was supported by ONR Grant N00014-98-1-0527. Cihangir Duran gratefully acknowledges the support of the Gebze Institute of Technology (Turkey) for his Ph.D. study in the USA. ",

year = "2004",

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doi = "10.1016/j.materresbull.2004.05.006",

language = "English (US)",

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AU - Duran, Cihangir

AU - Messing, Gary L.

AU - Trolier-McKinstry, Susan

N1 - Funding Information: This work was supported by ONR Grant N00014-98-1-0527. Cihangir Duran gratefully acknowledges the support of the Gebze Institute of Technology (Turkey) for his Ph.D. study in the USA.

PY - 2004/9/1

Y1 - 2004/9/1

N2 - Acicular particles of KSr2Nb5O15, Sr 0.5Ba0.5Nb2O6, and SrNb 2O6 were synthesized in the SrO-BaO-Nb2O 5 system, using KCl or SrCl2·6H2O salts. In the SrCl2·6H2O + Nb2O5 system, acicular SrNb2O6 particles were formed by a solid state reaction between the salt and Nb2O5. Large, irregularly shaped (Sr-rich) Sr2Nb2O7 particles formed with increasing reaction temperature and time. Small but finite solubility of SrO in the KCl + SrNb2O6 system favored the formation of acicular KSr2Nb5O15 and blade-like Sr2Nb2O7 particles (at higher temperatures). Uniformly sized, acicular KSr2Nb5O15 particles were easier to reproduce compared to the formation of acicular Sr 0.5Ba0.5Nb2O6 and SrNb 2O6 particles.

AB - Acicular particles of KSr2Nb5O15, Sr 0.5Ba0.5Nb2O6, and SrNb 2O6 were synthesized in the SrO-BaO-Nb2O 5 system, using KCl or SrCl2·6H2O salts. In the SrCl2·6H2O + Nb2O5 system, acicular SrNb2O6 particles were formed by a solid state reaction between the salt and Nb2O5. Large, irregularly shaped (Sr-rich) Sr2Nb2O7 particles formed with increasing reaction temperature and time. Small but finite solubility of SrO in the KCl + SrNb2O6 system favored the formation of acicular KSr2Nb5O15 and blade-like Sr2Nb2O7 particles (at higher temperatures). Uniformly sized, acicular KSr2Nb5O15 particles were easier to reproduce compared to the formation of acicular Sr 0.5Ba0.5Nb2O6 and SrNb 2O6 particles.

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JF - Materials Research Bulletin

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Molten salt synthesis of anisometric particles in the SrO-Nb ₂O₅-BaO system

Abstract

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