Thin nitride layers as permeation barriers

0498179 - ÚFP 2019 RIV CZ eng C - Conference Paper (international conference)
Veverka, Jakub - Matějíček, Jiří - Lukáč, František - Pospíšil, D. - Cvrček, L. - Nemanič, V.
Thin nitride layers as permeation barriers.
Acta Polytechnica CTU Proceedings. Praha: České vysoké učení technické v Praze, 2018 - (Koubský, T.), s. 24-29. ISBN 978-80-01-06459-7. ISSN 2336-5382.
[Sedmá studentská vědecká konference fyziky pevných látek a materiálů. Sedliště u Nepomuku (CZ), 18.09.2018-22.09.2018]
R&D Projects: GA ČR(CZ) GA14-12837S
EU Projects: European Commission(XE) 633053 - EUROfusion
Grant - others:AV ČR(CZ) StrategieAV21/2
Program: StrategieAV
Institutional support: RVO:61389021
Keywords : Permeation barriers * Nitride layers * PVD coating * Permeation measurement
OECD category: Coating and films
https://ojs.cvut.cz/ojs/index.php/APP/issue/view/641

Permeation barriers represent one of the crucial fields in materials development for thermonuclear fusion. Primary objective of the barriers is to suppress the permeation of hydrogen isotopes (mainly tritium) from future thermonuclear fusion facilities. Secondary objective is to reduce their retention in structural materials. Expected reactor conditions put high demands on the material, as well as on the final barrier quality. Key properties are tritium permeation reduction, absence of defects (especially cracks), high-temperature stability and corrossion resistance, and compatibility with structural materials (mostly ferritic-martensitic steels). Thin nitride layers, identified as promising permeation barriers, were prepared by diffusion-based nitridation and physical vapour deposition (PVD), and characterized.
Permanent Link: http://hdl.handle.net/11104/0290576