简介：ThephotoluminescencepropertiesofBiTaO4∶Pr3+andBiTaO4atroomtemperaturewerestudied,andtheinfraredtransmissionanddiffusionreflectionspectraofBiTaO4weremeasured.ThephotoluminescencespectrumofBiTaO4peaksatabout420,440and465nm.Therehasanobviousexcitationbandfrom330to370nm.ThephotoluminescencespectrumofBiTaO4∶Pr3+consistsofthecharacteristicemissionofPr3+,anditsmainpeakisat606nmfrom3P0→3H6transitionofPr3+.Itsexcitationspectrumconsistsofthewidebandwithmaximumat325nm,thewidebandintherangeof375～430nm,andthecharacteristicexcitationofPr3+.Thebandsat325nmand375～430nmmaybefromtheabsorptionofthechargetransfertransitionofthetantalategroupanddefectenergylevelsinitsforbiddenband,respectively.ThereisenergytransferfromhosttoPr3+.BecauseboththehostdensityandphotoluminescencepeakintensityofBiTaO4∶Pr3+aresuperiortoPbWO4,BiTaO4∶Pr3+maybeapotentialheavyscintillator.

简介：是的Gd2O3薄电影高--门电介质被磁控管在1.3Pa和不同温度的一个压力劈啪作响在Si(001)底层上直接扔。X光检查衍射结果揭示了那从450～570慮挠牥浡捩洠瑡牥慩獬?潈?牰獥楳杮眠獡甠敳?潴映'L楲慣整愠畬業慮洠瑡楲?潣灭獯瑩獥椠?楮牴杯湥愠浴獯桰牥?牰瑯'虡N湯?楍牣獯牴'壮肭?种的所有电影湡?敭档湡捩污瀠潲数瑲敩?景琠敨挠浯潰楳整?敷敲琠獥整???慷?湩楤慣整?桴瑡琠敨戠湥楤杮猠牴湥瑧?湡?牦捡畴敲琠畯桧敮獳漠?污浵湩?慭牴硩挠牥浡捩挠浯潰楳整?楳瑮牥摥愠?????P

简介：试图为高温度的熔融的盐反应堆的安装和电极的建设开发材料，在750和950湩爠晥湩浥湥?瑳敲杮桴湥湩?猠汯摩猠汯瑵潩?瑳敲杮桴湥湩?眠牯?慨摲湥湩?愠摮瀠敲楣楰慴楴湯猠牴湥瑧敨楮杮的Ni-11Fe-10Cu的高温度的氧化行为上的艾尔和Y的效果

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简介：Thecompositionandproductiontechnologyofthetypeofhot-rolledsteelplateusedintwo-sidedenamelingwerebrieflydescribed.Themicrostructureandmechanicalpropertiesbeforeandafterenamelingwerecontrastivelyinvestigated,andtheprecipitatesinthesampleswereanalyzedusingtransmissionelectronmicroscopeandenergydispersivespectrometer.Theresultsshowtheferritegrainsizeofthesteelplateafterhigh-temperatureenamelfiringtobefine,withalargenumberofTiCandTi4C2S2precipitatesdispersedthroughouttheferritematrix.Aftertworoundsofenamelfiringatatemperaturerangeof800-890℃,itsyieldstrengthcanstillreach342MPa.Theresultsofahydrogenpermeationtestshowthatthehydrogenstoragepropertiesofthesteelplatearemuchbetterthanthoseofordinarystructuralcarbonsteel.Abetterbubblestructureintheenamellayercanbeobtainedbythissteelplate,withnofish-scaledefectsontheenameledsteel-platesurface.

简介：ToresearchtheeffectofZradditiononinhibitingaustenitegraingrowthofTi-bearinglowcarbonsteels,twosteelswithdifferentZrcontentswerepreparedusingalaboratoryvacuuminductionfurnace.TheperformanceofHAZunderweldthermalsimulationswasinvestigated.Theimpacttoughness,microstructureandthesecond-phaseparticleperformanceofHAZunderweldthermalsimulationswereinvestigated.TheHAZtoughnesswasimprovedfrom13Jto87Jbyadditionof0.010%Zrintothesteel,withthefracturemechanismchangingfromcleavagefracturetotoughnessfracture,whichwasmainlyattributedtothesecond-phaseparticlesthatwerepotenttonucleateacicularferriteinHAZduringwelding.Itwasconcludedthatthesecond-phaseparticlesTiOx+MnS,ZrO2+MnSorTiOx+ZrO2+MnSwerenucleatedonZrO2orTiOx(x=1.5,2).Thismethodcanbeappliedtograinrefinementbypromotingtheacicularferriteformationandgrowthduringlarge-scalewelding,asinthecasesofthicksteelplatesrequiringhigherheatinputsduringwelding.

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简介：(Y,Gd)BxV1-xO4-x:Eu3+phosphorswerepreparedbysolidstatereaction.Theredemissioncolorpurityof(Y,Gd)BxV1-xO4-x:Eu3+phosphorismuchbetterthanthatoftherecentwidely-usedcommercialredemittingphosphor(Y,Gd)BO3:Eu3+anditsrelativeemissionintensityis84%ofthecommercialphosphor(Y,Gd)BO3:Eu3+.Itisexpectedthat(Y,Gd)BxV1-xO4:Eu3+phosphorwillbeapromisingcandidateforPDP(plasmadisplaypanels)application.

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