Dense Layered Molybdenum Disilicide-Silicon Carbide Functionally Graded Composites Formed by Field-Activated Synthesis

Ellen M. Carrillo-Heian; R. Douglas Carpenter; Glaucio H. Paulino; Jeffery C. Gibeling; Zuhair A. Munir

doi:10.1111/j.1151-2916.2001.tb00775.x

Dense Layered Molybdenum Disilicide-Silicon Carbide Functionally Graded Composites Formed by Field-Activated Synthesis

Ellen M. Carrillo-Heian
, R. Douglas Carpenter
, Glaucio H. Paulino
, Jeffery C. Gibeling
, Zuhair A. Munir

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

42 Scopus citations

Abstract

Dense, layered, single- and graded-composition composites of MoSi₂ and SiC were formed from elemental powders in one step, using the field-activated pressure-assisted combustion method. Compositions ranging from 100% MoSi₂ to 100% SiC were synthesized, with relative densities ranging from 99% to 76%, respectively. X-ray diffractometry results indicated the formation of pure phases when the concentration of MoSi₂ was high and the appearance of a ternary phase, Mo_4.8Si₃C_0.6, when the concentration of SiC was high. Electron microprobe analysis results showed the formation of stoichiometric and uniformly distributed phases. A layer-to-layer variation in composition of 10 mol% was sufficient to prevent thermal cracking during formation of the layered functionally graded materials.

Original language	English (US)
Pages (from-to)	962-968
Number of pages	7
Journal	Journal of the American Ceramic Society
Volume	84
Issue number	5
DOIs	https://doi.org/10.1111/j.1151-2916.2001.tb00775.x
State	Published - May 2001
Externally published	Yes

All Science Journal Classification (ASJC) codes

Ceramics and Composites
Materials Chemistry

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10.1111/j.1151-2916.2001.tb00775.x

Cite this

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title = "Dense Layered Molybdenum Disilicide-Silicon Carbide Functionally Graded Composites Formed by Field-Activated Synthesis",

abstract = "Dense, layered, single- and graded-composition composites of MoSi2 and SiC were formed from elemental powders in one step, using the field-activated pressure-assisted combustion method. Compositions ranging from 100\% MoSi2 to 100\% SiC were synthesized, with relative densities ranging from 99\% to 76\%, respectively. X-ray diffractometry results indicated the formation of pure phases when the concentration of MoSi2 was high and the appearance of a ternary phase, Mo4.8Si3C0.6, when the concentration of SiC was high. Electron microprobe analysis results showed the formation of stoichiometric and uniformly distributed phases. A layer-to-layer variation in composition of 10 mol\% was sufficient to prevent thermal cracking during formation of the layered functionally graded materials.",

author = "Carrillo-Heian, \{Ellen M.\} and Carpenter, \{R. Douglas\} and Paulino, \{Glaucio H.\} and Gibeling, \{Jeffery C.\} and Munir, \{Zuhair A.\}",

year = "2001",

month = may,

doi = "10.1111/j.1151-2916.2001.tb00775.x",

language = "English (US)",

volume = "84",

pages = "962--968",

journal = "Journal of the American Ceramic Society",

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}

TY - JOUR

T1 - Dense Layered Molybdenum Disilicide-Silicon Carbide Functionally Graded Composites Formed by Field-Activated Synthesis

AU - Carrillo-Heian, Ellen M.

AU - Carpenter, R. Douglas

AU - Paulino, Glaucio H.

AU - Gibeling, Jeffery C.

AU - Munir, Zuhair A.

PY - 2001/5

Y1 - 2001/5

N2 - Dense, layered, single- and graded-composition composites of MoSi2 and SiC were formed from elemental powders in one step, using the field-activated pressure-assisted combustion method. Compositions ranging from 100% MoSi2 to 100% SiC were synthesized, with relative densities ranging from 99% to 76%, respectively. X-ray diffractometry results indicated the formation of pure phases when the concentration of MoSi2 was high and the appearance of a ternary phase, Mo4.8Si3C0.6, when the concentration of SiC was high. Electron microprobe analysis results showed the formation of stoichiometric and uniformly distributed phases. A layer-to-layer variation in composition of 10 mol% was sufficient to prevent thermal cracking during formation of the layered functionally graded materials.

AB - Dense, layered, single- and graded-composition composites of MoSi2 and SiC were formed from elemental powders in one step, using the field-activated pressure-assisted combustion method. Compositions ranging from 100% MoSi2 to 100% SiC were synthesized, with relative densities ranging from 99% to 76%, respectively. X-ray diffractometry results indicated the formation of pure phases when the concentration of MoSi2 was high and the appearance of a ternary phase, Mo4.8Si3C0.6, when the concentration of SiC was high. Electron microprobe analysis results showed the formation of stoichiometric and uniformly distributed phases. A layer-to-layer variation in composition of 10 mol% was sufficient to prevent thermal cracking during formation of the layered functionally graded materials.

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DO - 10.1111/j.1151-2916.2001.tb00775.x

M3 - Article

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VL - 84

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Dense Layered Molybdenum Disilicide-Silicon Carbide Functionally Graded Composites Formed by Field-Activated Synthesis

Abstract

All Science Journal Classification (ASJC) codes

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