Polycrystalline diamond coating is a promising possibility for prevention, or reduction of high temperature oxidation of zirconium alloys. Zirconium alloys are used as cladding material in almost all types of nuclear reactors, where creates a barrier between nuclear fuel and cooling water in the primary circuit. Hydrogen and considerable amount of heat is released during steam oxidation that may occur in an eventual accident. In this paper Zircaloy-2 alloy was covered by polycrystalline diamond layer using Plasma Enhanced Linear Antennas Microwave Chemical Vapor Deposition system reactor. X-Ray Diffraction and Raman spectroscopy measurements confirmed coverage of the surface area with crystalline and amorphous carbon layer. Characterizations were done for zirconium alloy covered with diamond layer before and after corrosion and irradiation tests - ion beam irradiation tests and high temperature steam exposure.
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2014 22nd International Conference on Nuclear Engineering
July 7–11, 2014
Prague, Czech Republic
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
978-0-7918-4589-9
PROCEEDINGS PAPER
Polycrystalline Diamond Films as Protection of Zircaloy Fuel Cladding
Jan Škarohlíd
,
Jan Škarohlíd
Czech Technical University in Prague, Prague, Czech Republic
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Radek Škoda
Radek Škoda
Texas A&M University, College Station, TX
Czech Technical University in Prague, Prague, Czech Republic
Search for other works by this author on:
Jan Škarohlíd
Czech Technical University in Prague, Prague, Czech Republic
Radek Škoda
Texas A&M University, College Station, TX
Czech Technical University in Prague, Prague, Czech Republic
Paper No:
ICONE22-30873, V001T02A021; 4 pages
Published Online:
November 17, 2014
Citation
Škarohlíd, J, & Škoda, R. "Polycrystalline Diamond Films as Protection of Zircaloy Fuel Cladding." Proceedings of the 2014 22nd International Conference on Nuclear Engineering. Volume 1: Plant Operations, Maintenance, Engineering, Modifications, Life Cycle and Balance of Plant; Nuclear Fuel and Materials; Plant Systems, Structures and Components; Codes, Standards, Licensing and Regulatory Issues. Prague, Czech Republic. July 7–11, 2014. V001T02A021. ASME. https://doi.org/10.1115/ICONE22-30873
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