Multilayer (TiN, TiAlN) ceramic coatings for nuclear fuel cladding

Ece Alat; Arthur T. Motta; Robert J. Comstock; Jonna M. Partezana; Douglas E. Wolfe

doi:10.1016/j.jnucmat.2016.05.021

Multilayer (TiN, TiAlN) ceramic coatings for nuclear fuel cladding

Ece Alat, Arthur T. Motta, Robert J. Comstock, Jonna M. Partezana, Douglas E. Wolfe

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

217 Scopus citations

Abstract

In an attempt to develop an accident-tolerant fuel (ATF) that can delay the deleterious consequences of loss-of-coolant-accidents (LOCA), multilayer coatings were deposited onto ZIRLO^® coupon substrates by cathodic arc physical vapor deposition (CA-PVD). Coatings were composed of alternating TiN (top) and Ti_1-xAl_xN (2-layer, 4-layer, 8-layer and 16-layer) layers. The minimum TiN top coating thickness and coating architecture were optimized for good corrosion and oxidation resistance. Corrosion tests were performed in static pure water at 360 °C and 18.7 MPa for up to 90 days. The optimized coatings showed no spallation/delamination and had a maximum of 6 mg/dm² weight gain, which is 6 times smaller than that of a control sample of uncoated ZIRLO^® which showed a weight gain of 40.2 mg/dm². The optimized architecture features a ∼1 μm TiN top layer to prevent boehmite phase formation during corrosion and a TiN/TiAlN 8-layer architecture which provides the best corrosion performance.

Original language	English (US)
Pages (from-to)	236-244
Number of pages	9
Journal	Journal of Nuclear Materials
Volume	478
DOIs	https://doi.org/10.1016/j.jnucmat.2016.05.021
State	Published - Sep 1 2016

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
General Materials Science
Nuclear Energy and Engineering

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10.1016/j.jnucmat.2016.05.021

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title = "Multilayer (TiN, TiAlN) ceramic coatings for nuclear fuel cladding",

abstract = "In an attempt to develop an accident-tolerant fuel (ATF) that can delay the deleterious consequences of loss-of-coolant-accidents (LOCA), multilayer coatings were deposited onto ZIRLO{\textregistered} coupon substrates by cathodic arc physical vapor deposition (CA-PVD). Coatings were composed of alternating TiN (top) and Ti1-xAlxN (2-layer, 4-layer, 8-layer and 16-layer) layers. The minimum TiN top coating thickness and coating architecture were optimized for good corrosion and oxidation resistance. Corrosion tests were performed in static pure water at 360 °C and 18.7 MPa for up to 90 days. The optimized coatings showed no spallation/delamination and had a maximum of 6 mg/dm2 weight gain, which is 6 times smaller than that of a control sample of uncoated ZIRLO{\textregistered} which showed a weight gain of 40.2 mg/dm2. The optimized architecture features a ∼1 μm TiN top layer to prevent boehmite phase formation during corrosion and a TiN/TiAlN 8-layer architecture which provides the best corrosion performance.",

author = "Ece Alat and Motta, {Arthur T.} and Comstock, {Robert J.} and Partezana, {Jonna M.} and Wolfe, {Douglas E.}",

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T1 - Multilayer (TiN, TiAlN) ceramic coatings for nuclear fuel cladding

AU - Alat, Ece

AU - Motta, Arthur T.

AU - Comstock, Robert J.

AU - Partezana, Jonna M.

AU - Wolfe, Douglas E.

PY - 2016/9/1

Y1 - 2016/9/1

N2 - In an attempt to develop an accident-tolerant fuel (ATF) that can delay the deleterious consequences of loss-of-coolant-accidents (LOCA), multilayer coatings were deposited onto ZIRLO® coupon substrates by cathodic arc physical vapor deposition (CA-PVD). Coatings were composed of alternating TiN (top) and Ti1-xAlxN (2-layer, 4-layer, 8-layer and 16-layer) layers. The minimum TiN top coating thickness and coating architecture were optimized for good corrosion and oxidation resistance. Corrosion tests were performed in static pure water at 360 °C and 18.7 MPa for up to 90 days. The optimized coatings showed no spallation/delamination and had a maximum of 6 mg/dm2 weight gain, which is 6 times smaller than that of a control sample of uncoated ZIRLO® which showed a weight gain of 40.2 mg/dm2. The optimized architecture features a ∼1 μm TiN top layer to prevent boehmite phase formation during corrosion and a TiN/TiAlN 8-layer architecture which provides the best corrosion performance.

AB - In an attempt to develop an accident-tolerant fuel (ATF) that can delay the deleterious consequences of loss-of-coolant-accidents (LOCA), multilayer coatings were deposited onto ZIRLO® coupon substrates by cathodic arc physical vapor deposition (CA-PVD). Coatings were composed of alternating TiN (top) and Ti1-xAlxN (2-layer, 4-layer, 8-layer and 16-layer) layers. The minimum TiN top coating thickness and coating architecture were optimized for good corrosion and oxidation resistance. Corrosion tests were performed in static pure water at 360 °C and 18.7 MPa for up to 90 days. The optimized coatings showed no spallation/delamination and had a maximum of 6 mg/dm2 weight gain, which is 6 times smaller than that of a control sample of uncoated ZIRLO® which showed a weight gain of 40.2 mg/dm2. The optimized architecture features a ∼1 μm TiN top layer to prevent boehmite phase formation during corrosion and a TiN/TiAlN 8-layer architecture which provides the best corrosion performance.

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ER -

Multilayer (TiN, TiAlN) ceramic coatings for nuclear fuel cladding

Abstract

All Science Journal Classification (ASJC) codes

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