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1.
金属Zr的电子结构和物理性质 总被引:1,自引:1,他引:0
依据OA 理论确定hcp αZr 的电子结构为[Kr](4dn)0 .3968(4dc)2 .1428(5sc)1 .2620(5sf)0 .1984 , 并计算了它的势能曲线、晶格常数、结合能、弹性和热膨胀系数随温度的变化。另外, 还对其bcc 结构和fcc结构初态特征晶体和初态液体的电子结构进行了研究。 相似文献
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1 INTRODUCTIONMicrowaveplasmaisformedbyexciteddeposi tiongasintheactionofmicrowaveenergy .Electronsviolentlyvibrateundertheactionofahighfrequencyelectromagneticfieldwhichgreatlypromotesthecolli sionamongatoms ,radicalsandmolecules[1] ,thustheionizationdegr… 相似文献
3.
ntroductionTitaniumtetrachlorideisanimportantintermediatematerialforproducingmetalictitaniumandrelevantchemicalproducts.Conse... 相似文献
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W.L. Zhang B.Q. Jiang Y.S. Sun F. Lin L. Gu Chemical Engineering Department of Nanchang University Nanchang China 《金属学报(英文版)》1999,12(5):1082-1085
1.Introductionγaluminamembraneisoneoftheimportantinorganicmembranesandcanbeusedforvariousliquidseparationprocessesinchemicalengineering,foodprocessing,pharmaceuticindustry,environmentalengineering,biologicalengineeringandforthematerialofinorganicco… 相似文献
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Z.Q. Wang ) T.C. Ma) G.W. Liu) Y.J. Cai) B.L. Lu) ) College of Chemical Engineering Dalian University of Technology Dalian China ) Department of Material Science Engineering Dalian Institute of LightIndustry Dalian 《金属学报(英文版)》1999,12(4):684-688
1.IntroductionAluminaceramicsisonekindofadvancedceramicsusedwidelyinvariousfieldssuchaselectronicindustry,mechanicalindustry,andchemicalindustryandbiomaterialsaspect.Thepreparationofnanoaluminaceramicsisoneofthehotsubjectsofscientificresearchasthe… 相似文献
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简介了国内各类新型轧管机的现状。较全面分析了鲁宝钢管厂的φ114mmAccuRoll轧管机组的性能、特点、存在的问题及其解决的可能性。指出AccuRoll轧管机可作为我国中小型无缝钢管轧机技术改造的优选机型。 相似文献
7.
1IntroductionInthetraditionalconceptsofscanningelectronmicroscopy,itisusualythoughtthatsecondaryelectronsaresensitivetorugg... 相似文献
8.
J.Y. Zhang Z.Y. Fu W.M Wang H. Wang X.M. Min State Key Lab .of Advanced Technologyfor Materials Synthesis Processing Wuhan University of Technolo gy Wuhan China 《金属学报(英文版)》1999,12(4):395-400
1.IntroductionWettabilitybetweenceramicandmetalisaveryimportantaspectoftheresearchanddevelopmentofCeramic/MetalComposites(CMC),whichhasagreateffectonthemicrostructureandpropertiesofCMC.Howevertheclassictheoryandmethoddidn’tshowtheinnerconnectionofco… 相似文献
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淬火介质冷却曲线的判读和评价 总被引:11,自引:3,他引:8
1前言1995年5月1日,国际标准组织(ISO)颁布了淬火油冷却特性测定方法《IndustrialquenchingoilsdeterminationofcoolingcharacteristicsNickelaloyprobetestmeth... 相似文献
10.
最近美国波音公司的研究开发支柱企业——波音 Phantom工厂与能源部签订了利用高温超导轴承的飞轮储能装置协议.在这个750万美元的项目中,能源部出资370万美元,另外包括四家私人公司,即IntermagneticsGeneral,Praxair Specialty Ceramics,MesOscopicDevices和Ashman Technologies.其中PraxairSpecialty Cerarnics公司提供制备块样的超导粉末,Mesoscopic Devices负责设计飞轮用脉冲管制… 相似文献
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Z.F.Peng) Y.Y.Ren) Q.S. Mei) Y.Q.Wang) X.Y.Zhang) M.S.Ye) ) Department of Materials Engineering Wuhan University of Hydraulic Electric Engineering Wuhan China ) Department of Superalloys CentralIron Steel Research Ins 《金属学报(英文版)》1999,12(4):436-441
1.IntroductionMuchworkhasbeendoneontheeffectsofmicroalloying〔14〕,solidsolutionandagingtreatment〔2,46〕,andgrainboundaryprecipitation〔2,4,7〕onelevatedtemperaturemechanicalpropertiesofrefractoryalloys.Tomeasurecomplexmechanicalpropertiesofarefractor… 相似文献
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1IntroductionTherelativelynewmetastableβtitaniumalloy(β21S)hasfoundincreasingapplicationsinaerospaceprograms,especiallyinmetalmatrixcompositesinfuturehypersonicvehiclesforitsattractivecombinationofproperties.Theβ21Salloyisstripproducible,coldr… 相似文献
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Research on Metal Hydride Compressor System 总被引:1,自引:1,他引:0
ntroductionMetalhydrideisakindoffunctionalmaterialthatcanachieveenergyconversion.Thehydrogenabsorptionstaticcompresor(MHcom... 相似文献
14.
Intheearlyof1960′s,withthedevelopmentofepitaxialtechniques,manydifficultproblemsintheproductionofsemiconductormaterialsandoptoelectronicdeviceshavebeensolvedsuccessfully,andtheirpropertieshavebeenimprovedenormously.Theepitaxialtechniqueshavebecomethemost… 相似文献
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M. AbdelKarim M. Mizuno N. Ohno = Department of Mechanical Engineering Nagoya University Chikusaku Nagoya Japan 《金属学报(英文版)》1999,12(1):4-11
1.IntroductionSinceratchetingbehavioristheacumulationofsecondarydeformationproceedingcyclebycycle,itisnoteasytodescribeitacc... 相似文献
16.
1IntroductionOverthepastfewyears,intensiveworkhasbenmadetoachievemulticolororfulcolorthinfilmelectroluminescence(EL)device... 相似文献
17.
方百增 《稀有金属(英文版)》2000,19(1):1-10
1 IntroductionElectrochemicalcapacitorsareuniqueenergystoragedevices ,whichexhibit2 0to2 0 0timesgreatercapacitancethanconven tionalcapacitors .Electrochemicalcapaci torscanbesimplyclassifiedintotwomaincategories:electricdouble layercapacitors(EDLCs) ,whichmain… 相似文献
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采用一个Mo-Fe-Ni-Co四元扩散偶试样,测定了Mo-Fe-Ni和Mo-Ni-Co在1200℃时的两个三元系等温截面;并借助金相显微镜、扫描电镜能谱仪以及电子探针,确定了Mo-Fe-Ni三元系在1200℃时三元合金中三元化合物P相的存在。该系统中存在bcc(Mo)、μ-Fe7Mo6、δ-MoNi、bcc(Fe)、fcc和P六个单相区;在Mo-Ni-Co三元系中存在bcc(Mo)、δ-MoNi、μ-Co7Mo6和fcc四个单相区。 相似文献
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1 INTRODUCTIONSrTiO3 basedmultifunctionceramicsisakindofnewsemiconductorceramicswiththedualfunctionsofceramicsgrain boundary layer(GBL)capacitorofhighcapacitanceandvaristor,whichexhibitsconsid erablevalueoffurtherresearchandremarkablepoten tialofbeingwide… 相似文献
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G.Q. Li S. Z. Sun Z. Xianyu L.H. Sun D. R. Li Departmentof Physics Northeastern University Shenyang China 《金属学报(英文版)》1999,12(4):562-565
1.IntroductionTheresearchonthemagnetoresistanteffecthasrecentlybecomeaheatedpointinthefieldofmaterialresearch.Researchontheapplicationofmagnetoresistanceeffecttendstoberatheractivewhilethebasicresearchandtheoreticprobeareenforced.Thereadingheadforthe… 相似文献