简介：Inordertotransfertheheatfromthearmortothecoolant,tungstenhastobeconnectedwithacopperheatsink.Thejointtechnologyisthemostcriticalissueformanufacturingplasmafacingcomponents.Consequently,thereliabilityofthejointsshouldbeverifiedbyagreatnumberofhigh-heat-flux（HHF）teststosimulatetherealloadconditions.W/CubrazedjointtechnologywithsliverfreefillermetalCuMnNihasbeendevelopedatSouthwesternInstituteofPhysics（SWIP）.Screeningandthermalfatiguetestsofonesmall-scaleflattileW/CuCrZrmockupwereperformedona60kWelectron-beamMaterialtestingscenario（EMS-60）constructedrecentlyatSWIP.Themodulesuccessfullysurvivedscreeningtestwiththeabsorbedpowerdensity(Pabs)of2MW/m2to10MW/m2andthefollowing1000cyclesatPabsof7.2MW/m2withouthotspotsandoverheatingzonesduringthewholetestcampaign.MetallurgyandSEMobservationsdidnotfindanycracksatbothsidesandtheinterface,indicatingagoodbondingofWandCuCrZralloy.Inaddition,finiteelementsimulationsbyANSYS12.0underexperimentalloadconditionswereperformedandcomparedwithexperimentalresults.

简介：Inthisstudy,tungsten(W)wascoatedonacopper(Cu)substratebyusingdouble-glowdischargetechniqueusingapureWpanelasthetargetandargon(Ar)asthedischargeandsputteringgas.ThecrystalstructureoftheWcoatingwasexaminedbyX-raydiffraction(XRD).Scanningelectronmicroscopy(SEM)wasperformedwithcross-sectionimagestoinvestigatethepenetrationdepthofWintotheCubody.Additionally,thepropertiesofwearabilityresistance,corrosionresistanceandmechanicalstrengthoftheWcoatedCumatrixwerealsomeasured.Itisconcludedthatindouble-glowplasma,WcoatedCucanbefacilelyprepared.ItisnoticedthatthetreatmenttemperatureheavilydominatesthepropertiesoftheW-Cucomposite.

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简介：本文首次利用异常衍射精细结构谱（DAFS）分析技术对多层膜中的NiFe和Cu的精细结构进行了分析。从DAFS谱中，我们提取出Ni和Cu的精细结构谱，从而可以单独研究多层膜中NiFe和Cu的精细结构。与荧光EXAFS谱的比较表明，两种方法得到的谱线完全一致。该技术为研究超薄多层膜的精细结构提供一种强有力的工具。

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简介：Ahighlyreliableinterfaceofself-alignedbarrierCuSiNthinlayerbetweentheCufilmandthenano-porousSiC:H(p-SiC:H)cappingbarrier(k=3.3)hasbeendevelopedinthepresentwork.Withtheintroductionofself-alignedbarrier(SAB)CuSiNbetweenaCufilmandap-SiC:Hcappingbarrier,theinterfacialthermalstabilityandtheadhesionoftheCu/p-SiC:Hfilmareconsiderablyenhanced.AsignificantimprovementofadhesionstrengthandthermalstabilityofCu/p-SiC:H/SiOC:Hfilmstackhasbeenachievedbyoptimizingthepre-cleanstepbeforecap-layerdepositionandbyformingtheCuSiN-likephase.ThiscaplayeronthesurfaceoftheCucanprovideamorecohesiveinterfaceandeffectivelysuppressCuatommigrationaswell.

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简介：本文利用X射线小角衍射和漫散射技术研究了两组具有不同GMR的NiFe/Cu多层膜样品的界面结构。利用在CuK吸收边附近的能量扫描得出了关于NiFe和Cu层的结晶性情况。结果表明两组样品在界面结构和结构性上有明显的区别。另外，我们还发现NiFe和Cu层的原子密度差别比块材料的差别大27％。

简介：用蒸发／冷凝方法制备Cu/LiF团簇基多层膜，用广延X射线吸收精细结构（EXAFS）和慢正电子束进行研究。与相应的本材料相比，虽然未发现Cu-Cu键长有明显收缩，但其配位数减少，结构无序性增加。同时，讨论了制备条件对其微结构的影响。

简介：给出了北京正负电子对撞机（BEPC）同步辐射新组装的3W1Wiggler束斑强度分布及光子束流的测量结果，并与理论计算作了比较，两者得出了一致的结果。

简介：同步辐射已经成为高压研究的一个非常理想的光源。在北京同步辐射装置（BSRF）上、结合金刚石对顶砧超高压实验技术建立起来的能量色散X射线粉末衍射系统，已用于物质状态方程和结构相变的研究。介绍了能量色散衍射方法，以及同步辐射原位测试过程。

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简介：Chemicalvapordeposition-tungsten(CVD-W)coatingcoveringthesurfaceoftheplasmafacingcomponent(PFC)isaneffectivemethodtoimplementthetungstenmaterialasplasmafacingmaterial(PFM)infusiondevices.ResidualthermalstressinCVD-Wcoatingduetothermalmismatchbetweencoatingandsubstratewassuccessfullysimulatedbyusingafiniteelementmethod(ANSYS10.0code).Thedepositionparametriceffects,i.e.,coatingthicknessanddepositiontemperature,andinterlayerwereinvestigatedtogetadescriptionoftheresidualthermalstressintheCVD-Wcoating-substratesystem.AndtheinfluenceofthesubstratematerialsonthegenerationofresidualthermalstressintheCVD-WcoatingwasanalyzedwithrespecttotheCVD-WcoatingapplicationasPFM.ThisanalysisisbeneficialforthepreparationandapplicationofCVD-Wcoating.

简介：通用粉末衍射仪是中国散裂中子源一期工程三条谱仪中的一条。它在运行的过程中会有辐射的产生，因此我们设计了人身安全联锁系统来保护工作人员的安全。本文阐述了GPPD人身安全联锁系统的设计原则、控制区划分、系统架构。对联锁PLC系统、联锁钥匙系统、联锁门禁系统进行详细的介绍。详细描述控制区进出及清场流程。最后，对调试及运行情况进行了总结。

简介：Highsolid-solubilityCo15Cu35alloyshavebeenpreparedbymeltspinningandsubmittedtoisothermalandanisothermalannealingtoobtaingranularalloys.TheX-raydiffraction(XRD)patternsweremeasuredtoinvesugatethedecompositionofsupersaturatedsolidsolutioninducedbyannealing.Theatomicdiffusionandstructuralevolutionduringtheheattreatmentwereinvestigated.Inviewoftheproblemslimitingtheirappllcation.thehigh-fieldmagneazationcurvesweremeasured.Byafittothehigh-fieldmagnetizationcurves,thegranuiaralloysarefoundhardtobemagneticallysaturatedattheearlystageofnucleationandgrowth.Themagnetizationbehaviorwascorrelacedtotheannealed-inducedstructurealevolutionandalsotothemagnetoresistanceeffect.