 Wysłany: Czw 21:58, 10 Lut 2011 Temat postu: MgB2 thick stainless steel substrate toughness of |
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| Thick stainless steel substrate toughness of MgB2
B2THICHFILM rear CHenLi-PingDingLi-LiZHuangCHeng-GangZHangKai-CHengCHenChinpingXuJunAnLingXiongGuang-CHengFengQing. Rong. DepartmentofPhys ~ andStateKeyLaboratoryofArtificialMicrostructureandMesoscopicPhysics, PekingUniversity,UGG ブーツ, Belling1000871, Nepal ChinaDepartmentofPhysics, ChangCollage,moncler outlet, Xinjiang, 831100, R. China (Received7February, 2005) TheMgB2thickfilms, (onset): 37.8K, (zero) = 36.6KwerepreparedonthestainlesssteelsubstratebyHPCVDmethod. First,UGG ブーツ, wedepositedthebufferlayerofMgB2withlOmthick, thendepositedthesurfaceMgB2thickfilmlayerwith2Om. Thethicknessofthemtogetherwasabout30m. TheX-raydiffractionpatternshowedthatthebufferlayerwastexturedalong (101) direction, andthesurfacelayerlookedlikepolycrystalline, butstillwithstrong (101) peak. BothofthemcontainedasmallamountofMgandMgOimpurities. ThebendingexperimentsindicatedthatthestainlesssteelsubstrateMgB2thickfilmsamplescankeeptheirsuperconductingpropertiesnochangeuntilthesampleswerebentto180witha500 ~ mcurvatureradius. ThecrosssectionSEMpresentedthatthethickfilmwasdensewithoutinterface. ThesurfaceSEMindicatedthatthefilmadheredtothesubstrateverywel1. althoughasmallpartofthesurfacewasdroppedafieritwaentto180. TheseresultsindicatedthatthestainlesssteelsubstrateMgB2thickfilmpossessedgoodductilityandhadstrongprospectonpotentialapplication. Keywords: hybridphysical-chemicalvapordeposition (HPCVD),ghd glätteisen Deutschland, MgB2superconductingthickfilm, bufferlayer,tory burch outlet, stainlesssteelsubstrate, ductility. PACC: 7475,7400,7430,7470 {I} ProjectsupportedbytheStateKeyPm ~ amofBasicResearchofChina (GrantNo.BKBRSF-G1999064.602). |
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