The paper gives information about material selection and fabrication methods for producing Plasma Facing Components (PFC), which are used in the walls of nuclear reactors. Refractory metals were chosen as coatings and graphite was selected as a substrate. The thermomechanical and structural properties of the layers were discussed. Furthermore, production methods of these coatings are evaluated to estimate the optimum way based on the experiments in this literature. Finally, a comparison between these fabricated coatings was discussed by assessing both structural deteriorations and thermomechanical properties during their application processes. Particular attention is paid to PVD fabricated tungsten coatings over graphite due to its overwhelming performance acting as PFC.
Il documento fornisce informazioni sulla selezione dei materiali e sui metodi di fabbricazione per la produzione di componenti di rivestimento al plasma (PFC), che vengono utilizzati nelle pareti dei reattori nucleari. I metalli refrattari sono stati scelti come rivestimenti e la grafite è stata selezionata come substrato. Sono state discusse le proprietà termomeccaniche e strutturali degli strati. Inoltre, i metodi di produzione di questi rivestimenti vengono valutati per stimare il modo ottimale sulla base degli esperimenti in questa letteratura. Infine, è stato discusso un confronto tra questi rivestimenti fabbricati valutando sia i deterioramenti strutturali che le proprietà termomeccaniche durante i loro processi di applicazione. Particolare attenzione viene prestata ai rivestimenti in tungsteno fabbricati in PVD rispetto alla grafite grazie alle sue straordinarie prestazioni che agiscono come PFC.
Refractory metal coatings onto carbon materials for plasma facing component
ATAY, MEHMET CEMAL
2019/2020
Abstract
The paper gives information about material selection and fabrication methods for producing Plasma Facing Components (PFC), which are used in the walls of nuclear reactors. Refractory metals were chosen as coatings and graphite was selected as a substrate. The thermomechanical and structural properties of the layers were discussed. Furthermore, production methods of these coatings are evaluated to estimate the optimum way based on the experiments in this literature. Finally, a comparison between these fabricated coatings was discussed by assessing both structural deteriorations and thermomechanical properties during their application processes. Particular attention is paid to PVD fabricated tungsten coatings over graphite due to its overwhelming performance acting as PFC.File | Dimensione | Formato | |
---|---|---|---|
10646059_tesina.pdf
accessibile in internet per tutti
Descrizione: Mehmet Cemal Atay - Tesina
Dimensione
2.58 MB
Formato
Adobe PDF
|
2.58 MB | Adobe PDF | Visualizza/Apri |
I documenti in POLITesi sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
https://hdl.handle.net/10589/175233