Diamond Coating Reduces Nuclear Fuel Rod Corrosion at Accidental Temperatures: The Role of Surface Electrochemistry and Semiconductivity

If we want to decrease the probability of accidents in nuclear reactors, we must control the surface corrosion of the fuel rods. In this work we used a diamond coating containing <60% diamond and >40% sp<sup>2</sup> “soft” carbon phase to protect Zr alloy fuel rods (ZIRLO<sup>...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Lucie Celbová, Petr Ashcheulov, Ladislav Klimša, Jaromír Kopeček, Kateřina Aubrechtová Dragounová, Jakub Luštinec, Jan Macák, Radek Škoda, Irena Kratochvílová
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	diamond coating ZIRLO surface electrochemistry chemical vapor deposition nuclear fuel rods corrosion Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/f00ea087b0514867a27d1418559497f8
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:f00ea087b0514867a27d1418559497f8
record_format	dspace
spelling	oai:doaj.org-article:f00ea087b0514867a27d1418559497f82021-11-11T17:53:06ZDiamond Coating Reduces Nuclear Fuel Rod Corrosion at Accidental Temperatures: The Role of Surface Electrochemistry and Semiconductivity10.3390/ma142163151996-1944https://doaj.org/article/f00ea087b0514867a27d1418559497f82021-10-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6315https://doaj.org/toc/1996-1944If we want to decrease the probability of accidents in nuclear reactors, we must control the surface corrosion of the fuel rods. In this work we used a diamond coating containing <60% diamond and >40% sp<sup>2</sup> “soft” carbon phase to protect Zr alloy fuel rods (ZIRLO<sup>®</sup>) against corrosion in steam at temperatures from 850 °C to 1000 °C. A diamond coating was grown in a pulse microwave plasma chemical vapor deposition apparatus and made a strong barrier against hydrogen uptake into ZIRLO<sup>®</sup> (ZIRLO) under all tested conditions. The coating also reduced ZIRLO corrosion in hot steam at 850 °C (for 60 min) and at 900 °C (for 30 min). However, the protective ability of the diamond coating decreased after 20 min in 1000 °C hot steam. The main goal of this work was to explain how diamond and sp<sup>2</sup> “soft” carbon affect the ZIRLO fuel rod surface electrochemistry and semi conductivity and how these parameters influence the hot steam ZIRLO corrosion process. To achieve this goal, theoretical and experimental methods (scanning electron microscopy, Raman spectroscopy, electrochemical impedance spectroscopy, carrier gas hot extraction, oxidation kinetics, ab initio calculations) were applied. Deep understanding of ZIRLO surface processes and states enable us to reduce accidental temperature corrosion in nuclear reactors.Lucie CelbováPetr AshcheulovLadislav KlimšaJaromír KopečekKateřina Aubrechtová DragounováJakub LuštinecJan MacákRadek ŠkodaIrena KratochvílováMDPI AGarticlediamond coatingZIRLOsurface electrochemistrychemical vapor depositionnuclear fuel rods corrosionTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6315, p 6315 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	diamond coating ZIRLO surface electrochemistry chemical vapor deposition nuclear fuel rods corrosion Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	diamond coating ZIRLO surface electrochemistry chemical vapor deposition nuclear fuel rods corrosion Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Lucie Celbová Petr Ashcheulov Ladislav Klimša Jaromír Kopeček Kateřina Aubrechtová Dragounová Jakub Luštinec Jan Macák Radek Škoda Irena Kratochvílová Diamond Coating Reduces Nuclear Fuel Rod Corrosion at Accidental Temperatures: The Role of Surface Electrochemistry and Semiconductivity
description	If we want to decrease the probability of accidents in nuclear reactors, we must control the surface corrosion of the fuel rods. In this work we used a diamond coating containing <60% diamond and >40% sp<sup>2</sup> “soft” carbon phase to protect Zr alloy fuel rods (ZIRLO<sup>®</sup>) against corrosion in steam at temperatures from 850 °C to 1000 °C. A diamond coating was grown in a pulse microwave plasma chemical vapor deposition apparatus and made a strong barrier against hydrogen uptake into ZIRLO<sup>®</sup> (ZIRLO) under all tested conditions. The coating also reduced ZIRLO corrosion in hot steam at 850 °C (for 60 min) and at 900 °C (for 30 min). However, the protective ability of the diamond coating decreased after 20 min in 1000 °C hot steam. The main goal of this work was to explain how diamond and sp<sup>2</sup> “soft” carbon affect the ZIRLO fuel rod surface electrochemistry and semi conductivity and how these parameters influence the hot steam ZIRLO corrosion process. To achieve this goal, theoretical and experimental methods (scanning electron microscopy, Raman spectroscopy, electrochemical impedance spectroscopy, carrier gas hot extraction, oxidation kinetics, ab initio calculations) were applied. Deep understanding of ZIRLO surface processes and states enable us to reduce accidental temperature corrosion in nuclear reactors.
format	article
author	Lucie Celbová Petr Ashcheulov Ladislav Klimša Jaromír Kopeček Kateřina Aubrechtová Dragounová Jakub Luštinec Jan Macák Radek Škoda Irena Kratochvílová
author_facet	Lucie Celbová Petr Ashcheulov Ladislav Klimša Jaromír Kopeček Kateřina Aubrechtová Dragounová Jakub Luštinec Jan Macák Radek Škoda Irena Kratochvílová
author_sort	Lucie Celbová
title	Diamond Coating Reduces Nuclear Fuel Rod Corrosion at Accidental Temperatures: The Role of Surface Electrochemistry and Semiconductivity
title_short	Diamond Coating Reduces Nuclear Fuel Rod Corrosion at Accidental Temperatures: The Role of Surface Electrochemistry and Semiconductivity
title_full	Diamond Coating Reduces Nuclear Fuel Rod Corrosion at Accidental Temperatures: The Role of Surface Electrochemistry and Semiconductivity
title_fullStr	Diamond Coating Reduces Nuclear Fuel Rod Corrosion at Accidental Temperatures: The Role of Surface Electrochemistry and Semiconductivity
title_full_unstemmed	Diamond Coating Reduces Nuclear Fuel Rod Corrosion at Accidental Temperatures: The Role of Surface Electrochemistry and Semiconductivity
title_sort	diamond coating reduces nuclear fuel rod corrosion at accidental temperatures: the role of surface electrochemistry and semiconductivity
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/f00ea087b0514867a27d1418559497f8
work_keys_str_mv	AT luciecelbova diamondcoatingreducesnuclearfuelrodcorrosionataccidentaltemperaturestheroleofsurfaceelectrochemistryandsemiconductivity AT petrashcheulov diamondcoatingreducesnuclearfuelrodcorrosionataccidentaltemperaturestheroleofsurfaceelectrochemistryandsemiconductivity AT ladislavklimsa diamondcoatingreducesnuclearfuelrodcorrosionataccidentaltemperaturestheroleofsurfaceelectrochemistryandsemiconductivity AT jaromirkopecek diamondcoatingreducesnuclearfuelrodcorrosionataccidentaltemperaturestheroleofsurfaceelectrochemistryandsemiconductivity AT katerinaaubrechtovadragounova diamondcoatingreducesnuclearfuelrodcorrosionataccidentaltemperaturestheroleofsurfaceelectrochemistryandsemiconductivity AT jakublustinec diamondcoatingreducesnuclearfuelrodcorrosionataccidentaltemperaturestheroleofsurfaceelectrochemistryandsemiconductivity AT janmacak diamondcoatingreducesnuclearfuelrodcorrosionataccidentaltemperaturestheroleofsurfaceelectrochemistryandsemiconductivity AT radekskoda diamondcoatingreducesnuclearfuelrodcorrosionataccidentaltemperaturestheroleofsurfaceelectrochemistryandsemiconductivity AT irenakratochvilova diamondcoatingreducesnuclearfuelrodcorrosionataccidentaltemperaturestheroleofsurfaceelectrochemistryandsemiconductivity
_version_	1718432035430727680

Diamond Coating Reduces Nuclear Fuel Rod Corrosion at Accidental Temperatures: The Role of Surface Electrochemistry and Semiconductivity

Ejemplares similares