RT Generic
T1 Micro-fast for the sintering of the superconductor material YBCO
A1 Sánchez Ruiz, Natalia
AB Inthelasttwentyyears,alargenumberofinvestigationsandresearchgroups,forthedevelopmentofminiaturizationofproductsanddevicesusedintheindustry,canbefound.Ithasbeennoticedthatthedemandformicro-­‐scalemanufacturedpartshasexperimentedastrongincreased.Anovelmicroformingtechnology,namedMicro-­‐FASThasbecomeoneofthemostpromisingmethodsformicromanufacturingwithacompetitiveandefficientlowcost,whichresultsaveryimportantrequirementtotakeintoaccountnowadays.Micro-­‐FASTisthefieldassistedsinteringtechniqueanditwasfirstproposedbyagroupofresearchersfortheformingofmicrocomponents.Someoftheresearchers,workingontheimprovementanddevelopmentofthistechnique,arepartoftheDesign,ManufacturingandEngineeringManagementdepartmentoftheuniversityofStrathclyde,wheretheexperimentsmentionedinthisprojecthavebeencarriedout.Followingtheknowledgeandpreviousworktheyhaveperformedwithdifferentmaterials,inthisprojectithasbeenrealizedaMicro-­‐FASTusingasuperconductormaterial,YttriumBariumCopperOxide,knownasYBCOorY-­‐123.Oxidesuperconductorsarepresentingahighattractivefortechnicalapplicationsrecently,sinceithasbeendemonstratedtheycanactassuperconductorsatliquidnitrogentemperature.Becauseofthis,ithasbeenconsidereditcanbeagreatchallengetocarryoutaMicro-­‐FASTwiththiskindofmaterial,asitissomethingthatisnorecordonanypreviousreportormagazine.Thisprojectconsistsin6chapters,wherecanbefoundafullstudyofthefeaturesofthissuperconductormaterialaswellasofthecharacteristicsandconsiderationstotakeintoaccountfortheproductionofdenseYBCObulkfrompowdersofthismaterial,usingMicro-­‐FAST.Italsoshowstheresultingsamplesobtainedafterthesinteringprocesscarriedoutina3800GleeblemachineattheImperialCollegeinLondon.Thedifferentparametersselectedfortheseveralexperimentareindicatedanditcanbealsoobservedadeepanalysisofthemicrostructureandtherelativedensityofthesamplesusinghighqualitydevicesprovidedbytheuniversity.ThegoalofthepresentworkistofabricatehighlydenseYBCObodybyMicro-­‐FASTinordertoimprovethesinteringtimeandalsoanalysetheeffectonthemicrostructureanddensitywhensomeparameters,suchassinteringtemperature,pressure,heatingrateand/orholdingtime,arechanged.
YR 2015
FD 2015
LK http://hdl.handle.net/10016/23108
UL http://hdl.handle.net/10016/23108
LA eng
DS e-Archivo
RD 30 abr. 2024