Chemical and morphological analysis of sol-derived KCa2Nb3O10

Steven T. Kim; Vinayak P. Dravid; Sankar Sambasivan

doi:10.1557/JMR.1999.0180

Chemical and morphological analysis of sol-derived KCa₂Nb₃O₁₀

Steven T. Kim, Vinayak P. Dravid, Sankar Sambasivan

Materials Science and Engineering

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

3 Scopus citations

Abstract

The chemical and morphological properties of a sol-derived layered perovskite compound, KCa₂Nb₃O₁₀ (KCN), are presented. Development of this compound is motivated by its use as an interphase fiber-coating material for ceramic matrix composites (CMC's). In such systems, this material is to be placed between the fiber and matrix to control crack propagation in the vicinity of the fiber, thereby enhancing toughness. Comparative analyses are performed between known bulk specimens of KCN and the sol-derived product using transmission electron microscopy (TEM) and energy dispersive spectroscopy (EDS). The suitability of the sol-derived KCN for CMC applications is demonstrated through microstructure and chemical composition similar to that of the known bulk KCN samples.

Original language	English (US)
Pages (from-to)	1325-1328
Number of pages	4
Journal	Journal of Materials Research
Volume	14
Issue number	4
DOIs	https://doi.org/10.1557/JMR.1999.0180
State	Published - Apr 1999

ASJC Scopus subject areas

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

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title = "Chemical and morphological analysis of sol-derived KCa2Nb3O10",

abstract = "The chemical and morphological properties of a sol-derived layered perovskite compound, KCa2Nb3O10 (KCN), are presented. Development of this compound is motivated by its use as an interphase fiber-coating material for ceramic matrix composites (CMC's). In such systems, this material is to be placed between the fiber and matrix to control crack propagation in the vicinity of the fiber, thereby enhancing toughness. Comparative analyses are performed between known bulk specimens of KCN and the sol-derived product using transmission electron microscopy (TEM) and energy dispersive spectroscopy (EDS). The suitability of the sol-derived KCN for CMC applications is demonstrated through microstructure and chemical composition similar to that of the known bulk KCN samples.",

author = "Kim, {Steven T.} and Dravid, {Vinayak P.} and Sankar Sambasivan",

note = "Funding Information: authors, Sankar Sambasivan, wishes to acknowledge the financial support from the Air Force Office of Scientific Research under Award No. F49620-95-1-0155.",

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AU - Kim, Steven T.

AU - Dravid, Vinayak P.

AU - Sambasivan, Sankar

N1 - Funding Information: authors, Sankar Sambasivan, wishes to acknowledge the financial support from the Air Force Office of Scientific Research under Award No. F49620-95-1-0155.

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N2 - The chemical and morphological properties of a sol-derived layered perovskite compound, KCa2Nb3O10 (KCN), are presented. Development of this compound is motivated by its use as an interphase fiber-coating material for ceramic matrix composites (CMC's). In such systems, this material is to be placed between the fiber and matrix to control crack propagation in the vicinity of the fiber, thereby enhancing toughness. Comparative analyses are performed between known bulk specimens of KCN and the sol-derived product using transmission electron microscopy (TEM) and energy dispersive spectroscopy (EDS). The suitability of the sol-derived KCN for CMC applications is demonstrated through microstructure and chemical composition similar to that of the known bulk KCN samples.

AB - The chemical and morphological properties of a sol-derived layered perovskite compound, KCa2Nb3O10 (KCN), are presented. Development of this compound is motivated by its use as an interphase fiber-coating material for ceramic matrix composites (CMC's). In such systems, this material is to be placed between the fiber and matrix to control crack propagation in the vicinity of the fiber, thereby enhancing toughness. Comparative analyses are performed between known bulk specimens of KCN and the sol-derived product using transmission electron microscopy (TEM) and energy dispersive spectroscopy (EDS). The suitability of the sol-derived KCN for CMC applications is demonstrated through microstructure and chemical composition similar to that of the known bulk KCN samples.

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Chemical and morphological analysis of sol-derived KCa₂Nb₃O₁₀

Abstract

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