The protective properties of thin alumina films deposited by metal organic chemical vapour deposition against high-temperature corrosion of stainless steels

Morssinkhof, R.W.J.; Fransen, Τ.; Heusinkveld, M.M.D.; Gellings, P.J.

doi:10.1016/0921-5093(89)90800-9

Cited by 18 publications

(10 citation statements)

References 10 publications

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“…Coating technology in this area is based on pack cementation (1) and plasma spraying (2). while only few authors report MOCVD (3). PACVD (4) and PVD techniques to protect the alloys against this type of corrosion.…”

Section: Introductionmentioning

confidence: 99%

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THE PROTECTION OF ALLOYS AGAINST HIGH TEMPERATURE SULPHIDATION BY SiO₂-COATINGS DEPOSITED BY MOCVD

Hofman

Westheim

Fransen

et al. 1992

Materials and Manufacturing Processes

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Silica coatings have been deposited on various alloys by MOCVD (Metal Organic Chemical Vapor Deposition) to protect them against high temperature corrosion in coal gasification environments. DiAcetoxyDitertialyButoxySilane (DADBS) has been used as a metal organic precursor at deposition temperatures between 773-873 "K and amorphous layers were produced with a growth rate of about 1 pm. h-'. These coatings have been tested at 823°K in a sulphidizing atmosphere with a low oxygen (9.3 X 10-a bar) and a high sulphur partial pressure (1.2 X 10'' bar). In this environment the sulphidation resistance of verious alloys has improved by a factor of at least 100 by the coating. The observed corrosion reaction is local and is explained by a model in which in the first stage cracks are formed due to mechanical stresses in the coating. In the second stage metal sulphides are formed by outward diffusion of metal and inward diffusion of sulphur through the cracks. When stainless steels are used as the alloy the ouer layer consists of FeS and the lower one of CrS.

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Section: Introductionmentioning

confidence: 99%

“…Regarding MOCVD only Morssinkhof et a1. (3) have used a technique to deposit amorphous Al,O,. The metal organic precursor used in their work was Aluminum Tri Isopropoxide and deposition temperatures between 523 to 723 OK were necessary to obtain protective coatings.…”

Section: Introductionmentioning

confidence: 99%

THE PROTECTION OF ALLOYS AGAINST HIGH TEMPERATURE SULPHIDATION BY SiO₂-COATINGS DEPOSITED BY MOCVD

Hofman

Westheim

Fransen

et al. 1992

Materials and Manufacturing Processes

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“…Using various vapour deposition techniques, including plasma assisted CVD (PACVD) [16,28,29], metal organic CVD (MOCVD) [30,31] and laser CVD (LCVD) [32], thin « 20…”

Section: Ceramic Diffusion Coatingsmentioning

confidence: 99%

Surface Engineering for High Temperature Corrosion Resistance

Stroosnijder

Bennett

Mévrel³

1992

Eurocourses: Mechanical and Materials Science

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ABSTRACT. This review considers surface engineering techniques for high temperature corrosion resistance. A brief description of high temperature corrosion is given and criteria for surface engineering are outlined. The most important classes of surface treatments for high temperature corrosive applications are discussed, notably surface alloying, diffusion coatings and metallic and ceramic overlay coatings. Also, the important role of surface modification techniques, in particular ion implantation, as a research tool for corrosion science is highlighted.

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“…The models used in this work can be applied to APCVD, LPCVD and MOCVD. The protective properties of the coatings are not considered here, but published elsewhere (4,5).…”

Section: Hofman Etalmentioning

confidence: 99%

Thin Alumina and Silica Films by Chemical Vapor Deposition (Cvd)

Hofman

Morssinkhof

Fransen

et al. 1993

Materials and Manufacturing Processes

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The protective properties of thin alumina films deposited by metal organic chemical vapour deposition against high-temperature corrosion of stainless steels

Abstract: Coatings of Al20 3 were deposited on

Cited by 18 publications

References 10 publications

THE PROTECTION OF ALLOYS AGAINST HIGH TEMPERATURE SULPHIDATION BY SiO₂-COATINGS DEPOSITED BY MOCVD

THE PROTECTION OF ALLOYS AGAINST HIGH TEMPERATURE SULPHIDATION BY SiO₂-COATINGS DEPOSITED BY MOCVD

Surface Engineering for High Temperature Corrosion Resistance

Thin Alumina and Silica Films by Chemical Vapor Deposition (Cvd)

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The protective properties of thin alumina films deposited by metal organic chemical vapour deposition against high-temperature corrosion of stainless steels

Abstract: Coatings of Al20 3 were deposited on

Cited by 18 publications

References 10 publications

THE PROTECTION OF ALLOYS AGAINST HIGH TEMPERATURE SULPHIDATION BY SiO2-COATINGS DEPOSITED BY MOCVD

THE PROTECTION OF ALLOYS AGAINST HIGH TEMPERATURE SULPHIDATION BY SiO2-COATINGS DEPOSITED BY MOCVD

Surface Engineering for High Temperature Corrosion Resistance

Thin Alumina and Silica Films by Chemical Vapor Deposition (Cvd)

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Product

Resources

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THE PROTECTION OF ALLOYS AGAINST HIGH TEMPERATURE SULPHIDATION BY SiO₂-COATINGS DEPOSITED BY MOCVD

THE PROTECTION OF ALLOYS AGAINST HIGH TEMPERATURE SULPHIDATION BY SiO₂-COATINGS DEPOSITED BY MOCVD