Corrosion-resistant CVD mullite coatings for Si3N4

J. A. Haynes; K. M. Cooley; D. P. Stinton; R. A. Lowden; W. Y. Lee

Corrosion-resistant CVD mullite coatings for Si₃N₄

J. A. Haynes
, K. M. Cooley
, D. P. Stinton
, R. A. Lowden
, W. Y. Lee

Oak Ridge National Laboratory

Research output: Contribution to journal › Conference article › peer-review

21 Scopus citations

Abstract

Corrosion-resistant oxide coatings are being developed in order to increase the durability of silicon-based structural ceramics in the presence of molten alkali salts. Crystalline mullite (3Al₂O₃·2SiO₂) coatings were deposited onto Si₃N₄ by chemical vapor deposition (CVD) at 1050 °C. The resultant CVD mullite microstructures were sensitive to SiCl₄ precursor concentration and reaction time. Specimens with dense CVD mullite coatings displayed excellent hot corrosion resistance during short-term testing in Na₂SO₄+O₂ at 1000 °C.

Original language	English
Pages (from-to)	355-362
Number of pages	8
Journal	Ceramic Engineering and Science Proceedings
Volume	20
Issue number	4
State	Published - 1999
Event	Proceedings of the 1999 23rd Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - Cocoa Beach, FL, USA Duration: 25 Jan 1999 → 29 Jan 1999

Cite this

@article{9c8673680bba4c039adb533726886685,

title = "Corrosion-resistant CVD mullite coatings for Si3N4",

abstract = "Corrosion-resistant oxide coatings are being developed in order to increase the durability of silicon-based structural ceramics in the presence of molten alkali salts. Crystalline mullite (3Al2O3·2SiO2) coatings were deposited onto Si3N4 by chemical vapor deposition (CVD) at 1050 °C. The resultant CVD mullite microstructures were sensitive to SiCl4 precursor concentration and reaction time. Specimens with dense CVD mullite coatings displayed excellent hot corrosion resistance during short-term testing in Na2SO4+O2 at 1000 °C.",

author = "Haynes, \{J. A.\} and Cooley, \{K. M.\} and Stinton, \{D. P.\} and Lowden, \{R. A.\} and Lee, \{W. Y.\}",

year = "1999",

language = "English",

volume = "20",

pages = "355--362",

number = "4",

note = "Proceedings of the 1999 23rd Annual Conference on Composites, Advanced Ceramics, Materials, and Structures ; Conference date: 25-01-1999 Through 29-01-1999",

}

TY - JOUR

T1 - Corrosion-resistant CVD mullite coatings for Si3N4

AU - Haynes, J. A.

AU - Cooley, K. M.

AU - Stinton, D. P.

AU - Lowden, R. A.

AU - Lee, W. Y.

PY - 1999

Y1 - 1999

N2 - Corrosion-resistant oxide coatings are being developed in order to increase the durability of silicon-based structural ceramics in the presence of molten alkali salts. Crystalline mullite (3Al2O3·2SiO2) coatings were deposited onto Si3N4 by chemical vapor deposition (CVD) at 1050 °C. The resultant CVD mullite microstructures were sensitive to SiCl4 precursor concentration and reaction time. Specimens with dense CVD mullite coatings displayed excellent hot corrosion resistance during short-term testing in Na2SO4+O2 at 1000 °C.

AB - Corrosion-resistant oxide coatings are being developed in order to increase the durability of silicon-based structural ceramics in the presence of molten alkali salts. Crystalline mullite (3Al2O3·2SiO2) coatings were deposited onto Si3N4 by chemical vapor deposition (CVD) at 1050 °C. The resultant CVD mullite microstructures were sensitive to SiCl4 precursor concentration and reaction time. Specimens with dense CVD mullite coatings displayed excellent hot corrosion resistance during short-term testing in Na2SO4+O2 at 1000 °C.

UR - https://www.scopus.com/pages/publications/0033342632

UR - https://www.scopus.com/pages/publications/0033342632#tab=citedBy

M3 - Conference article

AN - SCOPUS:0033342632

SN - 0196-6219

VL - 20

SP - 355

EP - 362

JO - Ceramic Engineering and Science Proceedings

JF - Ceramic Engineering and Science Proceedings

IS - 4

T2 - Proceedings of the 1999 23rd Annual Conference on Composites, Advanced Ceramics, Materials, and Structures

Y2 - 25 January 1999 through 29 January 1999

ER -

Corrosion-resistant CVD mullite coatings for Si₃N₄

Abstract

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