@prefix pubblicazioni: . @prefix unitaDiPersonaleInterno: . @prefix prodotto: . unitaDiPersonaleInterno:MATRICOLA26059 pubblicazioni:autoreCNRDi prodotto:ID109855 . @prefix prodottidellaricerca: . @prefix istituto: . istituto:CDS037 prodottidellaricerca:prodotto prodotto:ID109855 . @prefix modulo: . modulo:ID2195 prodottidellaricerca:prodotto prodotto:ID109855 . @prefix rdf: . @prefix retescientifica: . prodotto:ID109855 rdf:type retescientifica:ProdottoDellaRicerca , prodotto:TIPO1302 . @prefix rdfs: . prodotto:ID109855 rdfs:label "Molybdenum armour layer on Copper plates, manufacturing technologies and tests of prototypes (Abstract/Poster in atti di convegno)"@en . @prefix xsd: . prodotto:ID109855 pubblicazioni:anno "2011-01-01T00:00:00+01:00"^^xsd:gYear . @prefix skos: . prodotto:ID109855 skos:altLabel "
Pavei M.; Dal Bello S.; Groenveld H.; Marcuzzi D.; Sonato P.; Zaccaria P. (2011)
Molybdenum armour layer on Copper plates, manufacturing technologies and tests of prototypes
in 15th International Conference on Fusion Reactors Materials (ICFRM-15), Charleston, South Carolina, USA, October 16-22, 2011
"^^rdf:HTML ; pubblicazioni:autori "Pavei M.; Dal Bello S.; Groenveld H.; Marcuzzi D.; Sonato P.; Zaccaria P."^^xsd:string ; pubblicazioni:altreInformazioni "Abstract ID 15-270;"^^xsd:string ; pubblicazioni:url "http://www.ornl.gov/icfrm15/pdf/scientificprog/ABSTRACTS/15-270%20Mauro%20Pavei.pdf"^^xsd:string ; pubblicazioni:note "15-270"^^xsd:string ; skos:note "Abstract"^^xsd:string ; pubblicazioni:affiliazioni "1 Consorzio RFX, EURATOM-ENEA Association, Corso Stati Uniti 4, I-35127 Padova, Italy; \n2 3D-Metal Forming B.V.; \n3 Universit\u00E0 degli Studi di Padova.\n(M. Pavei 1; S. Dal Bello 1; H. Groenveld 2; D. Marcuzzi 1; P. Sonato 3; P. Zaccaria 1)"^^xsd:string ; pubblicazioni:titolo "Molybdenum armour layer on Copper plates, manufacturing technologies and tests of prototypes"^^xsd:string ; prodottidellaricerca:abstract "In the framework of the activities for the development of the Neutral Beam Injector (NBI) for \nITER, the design of the Radio-Frequency plasma source has been carried out. The most critical \ncomponents of the plasma source are the rear vertical plates facing the plasma, since they are hit \nby the back-streaming positive ions that are generated, mostly for stripping losses, inside the 1 \nMV electrostatic accelerator. As result of the physics-optical analyses carried out on the \naccelerator, the number and energy spectrum of the back accelerated positive ions are known, so \nit was possible to estimate the sputtering rate and the power density profile on the impinged \nsurfaces of the plasma source. As a consequence, the need of an armour layer having low \nsputtering yield was established to be necessary. Molybdenum and Tungsten are the most \nsuitable materials; nevertheless the minimum required thickness is approximately 0.5mm. \n \nAmong the few technologies suitable for the manufacturing of such thick armour layer, \naccording to the strict technical requirements and with a quite complex geometry, plasma \nspraying and explosion bonding techniques have been investigated. The explosion bonding \nprocess has been found indeed to be the most promising. In the paper the activities carried out for \noptimizing the explosion bonding process of molybdenum on copper and the forming of the \nsamples according to the final components specifications are presented. The resulting prototypes \nmade by explosion bonding and the sample obtained by plasma spraying have then been tested: \nmicroscopic, outgassing, delamination, thermal shock, and thermal fatigue analyses have been \ncarried out. The results of the tests are presented in this paper, giving an overview on the critical \ntechnological aspects and on the still open issues in view of the manufacturing of the final \ncomponents."@en ; prodottidellaricerca:prodottoDi modulo:ID2195 , istituto:CDS037 ; pubblicazioni:autoreCNR unitaDiPersonaleInterno:MATRICOLA26059 .