J. Quinton, D. Hughes, J. Penrose, C. Corr, S. Harmer
: Plasma-facing materials (PFMs) must be able to withstand conditions that are more extreme than anything naturally met on the face of the earth. Under the high particle and heat fluxes experienced in fusion plasma situations, cracking, surface roughening, blistering, hole formation, and melting have all been observed on tungsten PFMs. Degradation to PFMs in this way can lead to decreased performance in fusion reactors. Continued research and development of materials with properties that improve performance and minimise material degradation of the PFM is critical. This study compares diamond-like carbon (DLC) coatings and tungsten-doped DLC (W-DLC) coatings on pure polycrystalline tungsten substrates that have been exposed to hydrogen plasma. DLC coatings were prepared by plasma-assisted chemical vapour deposition (PECVD) with methane gas as the carbon source, in an RF plasma chamber. W-DLC coatings were prepared layer-by-layer via argon ion sputtering for the deposition of a tungsten layer between DLC layers. We present the results of coating of varying thickness that were prepared by altering the RF power, gas pressure and deposition time. The samples were exposed to a hydrogen plasma for a total of 120 hours. Changes in coating elemental composition and topography after exposure were observed by Auger and scanning electron spectromicroscopies. The thickness of each coating can be optimised to minimise degradation to tungsten PFMs, thereby improving the performance of fusion reactors.
{"title":"Degradation of fusion reactor plasma-facing materials through surface plasma etching","authors":"J. Quinton, D. Hughes, J. Penrose, C. Corr, S. Harmer","doi":"10.3390/cmdwc2021-09980","DOIUrl":"https://doi.org/10.3390/cmdwc2021-09980","url":null,"abstract":": Plasma-facing materials (PFMs) must be able to withstand conditions that are more extreme than anything naturally met on the face of the earth. Under the high particle and heat fluxes experienced in fusion plasma situations, cracking, surface roughening, blistering, hole formation, and melting have all been observed on tungsten PFMs. Degradation to PFMs in this way can lead to decreased performance in fusion reactors. Continued research and development of materials with properties that improve performance and minimise material degradation of the PFM is critical. This study compares diamond-like carbon (DLC) coatings and tungsten-doped DLC (W-DLC) coatings on pure polycrystalline tungsten substrates that have been exposed to hydrogen plasma. DLC coatings were prepared by plasma-assisted chemical vapour deposition (PECVD) with methane gas as the carbon source, in an RF plasma chamber. W-DLC coatings were prepared layer-by-layer via argon ion sputtering for the deposition of a tungsten layer between DLC layers. We present the results of coating of varying thickness that were prepared by altering the RF power, gas pressure and deposition time. The samples were exposed to a hydrogen plasma for a total of 120 hours. Changes in coating elemental composition and topography after exposure were observed by Auger and scanning electron spectromicroscopies. The thickness of each coating can be optimised to minimise degradation to tungsten PFMs, thereby improving the performance of fusion reactors.","PeriodicalId":20503,"journal":{"name":"Proceedings of 1st Corrosion and Materials Degradation Web Conference","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88134935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Perspectives of microbiologically influenced corrosion mechanisms","authors":"D. Blackwood","doi":"10.3390/cmdwc2021-09950","DOIUrl":"https://doi.org/10.3390/cmdwc2021-09950","url":null,"abstract":"","PeriodicalId":20503,"journal":{"name":"Proceedings of 1st Corrosion and Materials Degradation Web Conference","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74114581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
V. Grudinin, D. Sidelev, G. Bleykher, V. Krivobokov, S. Ruchkin
{"title":"Corrosion behavior of CrN<sub>x</sub> coatings deposited by hot target reactive magnetron sputtering","authors":"V. Grudinin, D. Sidelev, G. Bleykher, V. Krivobokov, S. Ruchkin","doi":"10.3390/cmdwc2021-09979","DOIUrl":"https://doi.org/10.3390/cmdwc2021-09979","url":null,"abstract":"","PeriodicalId":20503,"journal":{"name":"Proceedings of 1st Corrosion and Materials Degradation Web Conference","volume":"225 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73947980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Fabrication of cobalt-based nanocomposite film for corrosion mitigation of copper in flow chloride medium","authors":"R. C. Barik, V. Chukwuike","doi":"10.3390/cmdwc2021-09971","DOIUrl":"https://doi.org/10.3390/cmdwc2021-09971","url":null,"abstract":"","PeriodicalId":20503,"journal":{"name":"Proceedings of 1st Corrosion and Materials Degradation Web Conference","volume":"168 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75484204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Investigating the mechanical and electrochemical performance of Ni-P-TiC nanocomposite coatings through electrodeposition technique.","authors":"R. Shakoor, Osama Fayyaz, A. Khan, A. Hasan","doi":"10.3390/cmdwc2021-09928","DOIUrl":"https://doi.org/10.3390/cmdwc2021-09928","url":null,"abstract":"","PeriodicalId":20503,"journal":{"name":"Proceedings of 1st Corrosion and Materials Degradation Web Conference","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84106858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. S. Latthe, Rajaram S. Sutar, K. K. Sadasivuni, Shanhu Liu
{"title":"Lazy ways to attain self-cleaning superhydrophobic coatings","authors":"S. S. Latthe, Rajaram S. Sutar, K. K. Sadasivuni, Shanhu Liu","doi":"10.3390/cmdwc2021-09970","DOIUrl":"https://doi.org/10.3390/cmdwc2021-09970","url":null,"abstract":"","PeriodicalId":20503,"journal":{"name":"Proceedings of 1st Corrosion and Materials Degradation Web Conference","volume":"65 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83765363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Spatially Resolved Local Electrochemistry Visualizes the Interface of bioabsorbable Metals","authors":"Cheng Wang, S. Lamaka, M. Zheludkevich","doi":"10.3390/cmdwc2021-09990","DOIUrl":"https://doi.org/10.3390/cmdwc2021-09990","url":null,"abstract":"","PeriodicalId":20503,"journal":{"name":"Proceedings of 1st Corrosion and Materials Degradation Web Conference","volume":"44 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84241186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
C. Hejjaj, Ahmed Ait Aghzzaf, Christian Fischer, R. Hakkou
{"title":"New layered Aluminum tripolyphosphate intercalated 6-amino hexanoic acid (ATP-6-AHA) as corrosion inhibitor in 3.5%NaCl solution","authors":"C. Hejjaj, Ahmed Ait Aghzzaf, Christian Fischer, R. Hakkou","doi":"10.3390/cmdwc2021-09925","DOIUrl":"https://doi.org/10.3390/cmdwc2021-09925","url":null,"abstract":"","PeriodicalId":20503,"journal":{"name":"Proceedings of 1st Corrosion and Materials Degradation Web Conference","volume":"67 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75966280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Biofilms of sulfate-reducing bacteria on polyethylene terephthalate: the effect of bacillibactin-producing strains of <em>Bacillus</em> <em>velezensis</em>","authors":"N. Tkachuk, L. Zelena","doi":"10.3390/cmdwc2021-09938","DOIUrl":"https://doi.org/10.3390/cmdwc2021-09938","url":null,"abstract":"","PeriodicalId":20503,"journal":{"name":"Proceedings of 1st Corrosion and Materials Degradation Web Conference","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86606091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Recent trends on epoxy coatings for surface protection of metallic structures against corrosion","authors":"M. Arumugam","doi":"10.3390/cmdwc2021-09968","DOIUrl":"https://doi.org/10.3390/cmdwc2021-09968","url":null,"abstract":"","PeriodicalId":20503,"journal":{"name":"Proceedings of 1st Corrosion and Materials Degradation Web Conference","volume":"82 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76179470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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