Comparison of the oxidation behavior of a zirconium nitride coating in water vapor and air at high temperature

Zhaohe Gao; Ying Chen; Justyna Kulczyk-Malecka; Peter Kelly; Yi Zeng; Xinxin Zhang; Chun Li; Han Liu; Nadia Rohbeck; Ping Xiao

doi:10.1016/j.corsci.2018.04.015

Comparison of the oxidation behavior of a zirconium nitride coating in water vapor and air at high temperature

Zhaohe Gao, Ying Chen, Justyna Kulczyk-Malecka, Peter Kelly, Yi Zeng, Xinxin Zhang, Chun Li, Han Liu, Nadia Rohbeck, Ping Xiao

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Abstract

The oxidation behavior of zirconium nitride coating in high-temperature water vapor and air environments was studied. The parabolic rate constant of ZrN oxidizing in the water vapor environment at 600 °C was approximately 100 times faster than that in air, due to the larger pores and greater number of cracks that were formed across ZrO2 oxide layer formed during the water vapor oxidation process than during the air oxidation process. A bilayer-structure ZrO2 with tetragonal ZrO2 near the ZrN/ZrO2 interface and monoclinic ZrO2 approaching the outer ZrO2 surface were formed in both cases. The lateral cracks across the ZrO2 scale were caused by volume expansion from the tetragonal ZrO2 phase to the monoclinic ZrO2 phase transition.

Original language	English
Pages (from-to)	242-251
Number of pages	10
Journal	Corrosion Science
Volume	138
Early online date	12 Apr 2018
DOIs	https://doi.org/10.1016/j.corsci.2018.04.015
Publication status	Published - Jul 2018

Keywords

Oxidation kinetic
Oxidation mechanism
Oxide cracks
Phase transition
Water vapor
Zirconium nitride

Research Beacons, Institutes and Platforms

Dalton Nuclear Institute

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10.1016/j.corsci.2018.04.015

Comparison of the oxidation behavior of a zirconium nitride coating in water vapor and air at high temperature manuscript _Accepted author manuscript, 2.82 MB

https://www.sciencedirect.com/science/article/pii/S0010938X1730923X

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title = "Comparison of the oxidation behavior of a zirconium nitride coating in water vapor and air at high temperature",

abstract = "The oxidation behavior of zirconium nitride coating in high-temperature water vapor and air environments was studied. The parabolic rate constant of ZrN oxidizing in the water vapor environment at 600 °C was approximately 100 times faster than that in air, due to the larger pores and greater number of cracks that were formed across ZrO2 oxide layer formed during the water vapor oxidation process than during the air oxidation process. A bilayer-structure ZrO2 with tetragonal ZrO2 near the ZrN/ZrO2 interface and monoclinic ZrO2 approaching the outer ZrO2 surface were formed in both cases. The lateral cracks across the ZrO2 scale were caused by volume expansion from the tetragonal ZrO2 phase to the monoclinic ZrO2 phase transition.",

keywords = "Oxidation kinetic, Oxidation mechanism, Oxide cracks, Phase transition, Water vapor, Zirconium nitride",

author = "Zhaohe Gao and Ying Chen and Justyna Kulczyk-Malecka and Peter Kelly and Yi Zeng and Xinxin Zhang and Chun Li and Han Liu and Nadia Rohbeck and Ping Xiao",

year = "2018",

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doi = "10.1016/j.corsci.2018.04.015",

language = "English",

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journal = "Corrosion Science",

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T1 - Comparison of the oxidation behavior of a zirconium nitride coating in water vapor and air at high temperature

AU - Gao, Zhaohe

AU - Chen, Ying

AU - Kulczyk-Malecka, Justyna

AU - Kelly, Peter

AU - Zeng, Yi

AU - Zhang, Xinxin

AU - Li, Chun

AU - Liu, Han

AU - Rohbeck, Nadia

AU - Xiao, Ping

PY - 2018/7

Y1 - 2018/7

N2 - The oxidation behavior of zirconium nitride coating in high-temperature water vapor and air environments was studied. The parabolic rate constant of ZrN oxidizing in the water vapor environment at 600 °C was approximately 100 times faster than that in air, due to the larger pores and greater number of cracks that were formed across ZrO2 oxide layer formed during the water vapor oxidation process than during the air oxidation process. A bilayer-structure ZrO2 with tetragonal ZrO2 near the ZrN/ZrO2 interface and monoclinic ZrO2 approaching the outer ZrO2 surface were formed in both cases. The lateral cracks across the ZrO2 scale were caused by volume expansion from the tetragonal ZrO2 phase to the monoclinic ZrO2 phase transition.

AB - The oxidation behavior of zirconium nitride coating in high-temperature water vapor and air environments was studied. The parabolic rate constant of ZrN oxidizing in the water vapor environment at 600 °C was approximately 100 times faster than that in air, due to the larger pores and greater number of cracks that were formed across ZrO2 oxide layer formed during the water vapor oxidation process than during the air oxidation process. A bilayer-structure ZrO2 with tetragonal ZrO2 near the ZrN/ZrO2 interface and monoclinic ZrO2 approaching the outer ZrO2 surface were formed in both cases. The lateral cracks across the ZrO2 scale were caused by volume expansion from the tetragonal ZrO2 phase to the monoclinic ZrO2 phase transition.

KW - Oxidation kinetic

KW - Oxidation mechanism

KW - Oxide cracks

KW - Phase transition

KW - Water vapor

KW - Zirconium nitride

UR - http://www.scopus.com/inward/record.url?scp=85045713572&partnerID=8YFLogxK

U2 - 10.1016/j.corsci.2018.04.015

DO - 10.1016/j.corsci.2018.04.015

M3 - Article

AN - SCOPUS:85045713572

SN - 0010-938X

VL - 138

SP - 242

EP - 251

JO - Corrosion Science

JF - Corrosion Science

ER -

Comparison of the oxidation behavior of a zirconium nitride coating in water vapor and air at high temperature

Abstract

Keywords

Research Beacons, Institutes and Platforms

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