简介：

简介：Theinfluenceofthehystereticbehaviourinreactivesputteringwithapurealuminiumtargetinthepresenceofargonandoxygenplasmaontransmittanceandsurfacefreeenergyofaluminiumoxidefilmswasinvestigatedbyplasmaopticalemissionspectroscopytechnology.Theevolutionsofaluminium,andaluminiumoxideemissionlinesasfunctionsofoxygenflowrateatconstantpowerandpressurewerestudied.Asteeptransitionfromthemetallicsputteringtothecompoundsputteringwasobserveduponincreasingtheoxygenflowratefrom0.0SCCMtoabove2.0SCCM.Thenanoptimaldepositionzonewasobtainedthroughanalyzingthehystereticcurvesofaluminiumandaluminiumoxideemissionlines.TheevolutionofcrystalstructuresofsampleswasdiscernedbyX-raydiffractionspectradata.EnergydispersiveX-rayspectroscopydataalsodemonstratetherelationshipbetweenthechemicalcompositionsofaluminiumoxidefilmsandthehystereticbehaviour.Thefilmdepositedbetween1.5SCCMand2.0SCCMoxygenflowratedisplaysanoptimalandstoichiometicatomicratioofOtoAlandmassratioofOtoAl.ThechangesinthetransmittanceofsampleswerediscoveredtodependontheoxygenflowratebyUV-VIStransmittancespectra,andthechangesinsurfacefreeenergywerestudiedbycontactanglemeasurement.

简介：Indiumtinoxide(ITO)transparentconductingfilmwastreatedwithoxygenplasmaimmersionionimplantation(PIII).X-rayphotoelectronspectroscopy(XPS)wasemployedtocharacterizetheeffect.Theresultssuggestedthattheoxygencontentinthesurfacewasincreasedandmaintainedformorethan50hcomparedwithtraditionalplasma-treatedsamples.Meanwhile,theworkfunctionofITOestimatedbycomparingthepeakshiftintheXPSdiagramsuggestedacorrespondingincreasebymorethan1eV.

简介：Nanocrystallineoxidedispersionstrengthened(ODS)ferriticsteelpowderswithnominalcompositionofFe-14Cr-3W-0.3Ti-0.4Y2O3aresynthesizedusingsol-gelmethodandhy-drogenreduction.AtlowreductiontemperaturetheimpurityphaseofCrOisdetected.AthigherreductiontemperaturetheimpurityphaseisCr2O3whicheventuallydisappearswithincreasingreductiontime.ApureODSferriticsteelphaseisobtainedafterreducingthesol-gelresultantproductsat1200℃for3h.TheHRTEMandEDSmappingindicatethattheY2O3particleswithasizeofabout15nmarehomogenouslydispersedinthealloymatrix.ThebulkODSferriticsteelsamplespreparedfromsuchpowdersexhibitgoodmechanicalperformancewithanultimatetensilestressof960MPa.

简介：