Protection of a microstructured molybdenum reactor from high temperature oxidation by electrochemical deposition coatings in molten salts

S.A. Kuznetsov; A.R. Dubrovskiy; S.V. Kuznetsova; E.V. Rebrov; M.J.M. Mies; M.H.J.M. Croon, de; J.C. Schouten

doi:10.1002/9780470947777.ch15

Protection of a microstructured molybdenum reactor from high temperature oxidation by electrochemical deposition coatings in molten salts

S.A. Kuznetsov, A.R. Dubrovskiy, S.V. Kuznetsova, E.V. Rebrov, M.J.M. Mies, M.H.J.M. Croon, de, J.C. Schouten

Chemical Reactor Engineering

Research output: Chapter in Book/Report/Conference proceeding › Chapter › Academic › peer-review

Abstract

To improve the corrosion resistance of molybdenum, different methods were applied in this study: electrodeposition of hafnium coatings, electrochemical synthesis of hafnium diboride, boronising, siliciding, and boronising of MoSi2. The oxidation resistance of the coatings was investigated by the weight change in an air—water (2.3 vol %) mixture at a temperature of 500°C for a period up to 700 h. The best results for coatings with a thickness around 5 jim were obtained by boronising of silicided molybdenum substrates (MoSi2/Mo). It was shown that a two-phase microstructure consisting of the MoSi2 matrix phase with 12—15 wt % of the MoB4 phase greatly improved the oxidation resistance of the molybdenum substrate. The weight gain improved the oxidation resistance of the molybdenum substrate. The weight gain observed was 6.5 x I 0~ mg . cm~2 . h-1

Original language	English
Title of host publication	Molten Salts and Ionic Liquids
Subtitle of host publication	Never the Twain?
Editors	M. Gaune-Escard, K.R. Seddon
Place of Publication	Hoboken, N.J.
Publisher	Wiley
Chapter	15
Pages	193-217
Number of pages	25
ISBN (Print)	978-0-471-77392-4
DOIs	https://doi.org/10.1002/9780470947777.ch15
Publication status	Published - 2010

Keywords

Corrosion resistance
Electrochemical deposition coatings
High temperature oxidation
Microstructured molybdenum reactor
Molten salts

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10.1002/9780470947777.ch15

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Kuznetsov, S. A., Dubrovskiy, A. R., Kuznetsova, S. V., Rebrov, E. V., Mies, M. J. M., Croon, de, M. H. J. M., & Schouten, J. C. (2010). Protection of a microstructured molybdenum reactor from high temperature oxidation by electrochemical deposition coatings in molten salts. In M. Gaune-Escard, & K. R. Seddon (Eds.), Molten Salts and Ionic Liquids: Never the Twain? (pp. 193-217). Wiley. https://doi.org/10.1002/9780470947777.ch15

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title = "Protection of a microstructured molybdenum reactor from high temperature oxidation by electrochemical deposition coatings in molten salts",

abstract = "To improve the corrosion resistance of molybdenum, different methods were applied in this study: electrodeposition of hafnium coatings, electrochemical synthesis of hafnium diboride, boronising, siliciding, and boronising of MoSi2. The oxidation resistance of the coatings was investigated by the weight change in an air—water (2.3 vol %) mixture at a temperature of 500°C for a period up to 700 h. The best results for coatings with a thickness around 5 jim were obtained by boronising of silicided molybdenum substrates (MoSi2/Mo). It was shown that a two-phase microstructure consisting of the MoSi2 matrix phase with 12—15 wt % of the MoB4 phase greatly improved the oxidation resistance of the molybdenum substrate. The weight gain improved the oxidation resistance of the molybdenum substrate. The weight gain observed was 6.5 x I 0~ mg . cm~2 . h-1",

keywords = "Corrosion resistance, Electrochemical deposition coatings, High temperature oxidation, Microstructured molybdenum reactor, Molten salts",

author = "S.A. Kuznetsov and A.R. Dubrovskiy and S.V. Kuznetsova and E.V. Rebrov and M.J.M. Mies and {Croon, de}, M.H.J.M. and J.C. Schouten",

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Kuznetsov, SA, Dubrovskiy, AR, Kuznetsova, SV, Rebrov, EV, Mies, MJM, Croon, de, MHJM & Schouten, JC 2010, Protection of a microstructured molybdenum reactor from high temperature oxidation by electrochemical deposition coatings in molten salts. in M Gaune-Escard & KR Seddon (eds), Molten Salts and Ionic Liquids: Never the Twain?. Wiley, Hoboken, N.J., pp. 193-217. https://doi.org/10.1002/9780470947777.ch15

Protection of a microstructured molybdenum reactor from high temperature oxidation by electrochemical deposition coatings in molten salts. / Kuznetsov, S.A.; Dubrovskiy, A.R.; Kuznetsova, S.V. et al.
Molten Salts and Ionic Liquids: Never the Twain?. ed. / M. Gaune-Escard; K.R. Seddon. Hoboken, N.J.: Wiley, 2010. p. 193-217.

Research output: Chapter in Book/Report/Conference proceeding › Chapter › Academic › peer-review

TY - CHAP

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AU - Kuznetsov, S.A.

AU - Dubrovskiy, A.R.

AU - Kuznetsova, S.V.

AU - Rebrov, E.V.

AU - Mies, M.J.M.

AU - Croon, de, M.H.J.M.

AU - Schouten, J.C.

PY - 2010

Y1 - 2010

N2 - To improve the corrosion resistance of molybdenum, different methods were applied in this study: electrodeposition of hafnium coatings, electrochemical synthesis of hafnium diboride, boronising, siliciding, and boronising of MoSi2. The oxidation resistance of the coatings was investigated by the weight change in an air—water (2.3 vol %) mixture at a temperature of 500°C for a period up to 700 h. The best results for coatings with a thickness around 5 jim were obtained by boronising of silicided molybdenum substrates (MoSi2/Mo). It was shown that a two-phase microstructure consisting of the MoSi2 matrix phase with 12—15 wt % of the MoB4 phase greatly improved the oxidation resistance of the molybdenum substrate. The weight gain improved the oxidation resistance of the molybdenum substrate. The weight gain observed was 6.5 x I 0~ mg . cm~2 . h-1

AB - To improve the corrosion resistance of molybdenum, different methods were applied in this study: electrodeposition of hafnium coatings, electrochemical synthesis of hafnium diboride, boronising, siliciding, and boronising of MoSi2. The oxidation resistance of the coatings was investigated by the weight change in an air—water (2.3 vol %) mixture at a temperature of 500°C for a period up to 700 h. The best results for coatings with a thickness around 5 jim were obtained by boronising of silicided molybdenum substrates (MoSi2/Mo). It was shown that a two-phase microstructure consisting of the MoSi2 matrix phase with 12—15 wt % of the MoB4 phase greatly improved the oxidation resistance of the molybdenum substrate. The weight gain improved the oxidation resistance of the molybdenum substrate. The weight gain observed was 6.5 x I 0~ mg . cm~2 . h-1

KW - Corrosion resistance

KW - Electrochemical deposition coatings

KW - High temperature oxidation

KW - Microstructured molybdenum reactor

KW - Molten salts

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SN - 978-0-471-77392-4

SP - 193

EP - 217

BT - Molten Salts and Ionic Liquids

A2 - Gaune-Escard, M.

A2 - Seddon, K.R.

PB - Wiley

CY - Hoboken, N.J.

ER -

Kuznetsov SA, Dubrovskiy AR, Kuznetsova SV, Rebrov EV, Mies MJM, Croon, de MHJM et al. Protection of a microstructured molybdenum reactor from high temperature oxidation by electrochemical deposition coatings in molten salts. In Gaune-Escard M, Seddon KR, editors, Molten Salts and Ionic Liquids: Never the Twain?. Hoboken, N.J.: Wiley. 2010. p. 193-217 doi: 10.1002/9780470947777.ch15

Protection of a microstructured molybdenum reactor from high temperature oxidation by electrochemical deposition coatings in molten salts

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