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1.
1 INTRODUCTIONDuringthelast15years,thescientificresearchprogramoftheDivisionofmaterialsSciences(DMS)andtheappliedtechnologyprogramsoftheOfficesofEnergyEfficiencyandRenewableEnergy(EE)andofFossilEnergy(FE)havesupportedresearchontheorderedaluminide…  相似文献   

2.
Recent advances in electrochemistry of sulfide mineral flotation   总被引:8,自引:0,他引:8  
1 ELECTROCHEMISTRYOFFLOTATIONItisnowover 4 0yearssinceNixonproposedanelectrochemicalmechanismtoexplaintheinteractionofthiolflotationcollectorswithsulfidemineralsur facesandprovideameansofreconcilingthedifferenttheoriesthathad previouslybeenresolutelyad v…  相似文献   

3.
Electric Double layer Capacitor Based on Activated Carbon Material   总被引:1,自引:0,他引:1  
1 IntroductionElectrochemicalcapacitorsareuniqueenergystoragedevices ,whichexhibit2 0to2 0 0timesgreatercapacitancethanconven tionalcapacitors .Electrochemicalcapaci torscanbesimplyclassifiedintotwomaincategories:electricdouble layercapacitors(EDLCs) ,whichmain…  相似文献   

4.
1 INTRODUCTIONTherearetwotypesoforbitalsinouterelectronorbitalsofgoldanditslixiviants[1,2 ] .OneiscalledHOEO(higheroccupiedelectronicorbitals) ,suchasπ typeHOEOofboth 5d2(x2 -y2 ) and 5d2zofgold ,andσ typeHOEOofσ22 pxofcyanide;andanothercalledLUEO(lowerunoccupiedelect…  相似文献   

5.
0 IntroductionSurfaceEngineeringisnowgenerallyacknowledgedasoneofthemostimportanttechnologiesforthefuture.Electricbrushplatingisavariationofelectroplatingwhichallowsmetaldepositionontoselectedareas.Thecharacteristicsoftheprocessmakeitsuitableformanyap…  相似文献   

6.
Hot top electromagnetic casting research of Al thin slab   总被引:3,自引:0,他引:3  
1 INTRODUCTIONElectromagneticcasting(EMC)isamouldlesscontinuouscastingtechnologywithwhichliquidmetalisshapedbyelectromagneticforceandithasadvantagessuchas:smoothingotsurface,compact,homogeneoustissueandhighercastingvelocity.EMCtechnologyhasbeendev…  相似文献   

7.
《轻金属》2002,(12)
(Theformerfigureinthebracketsisissuenumberthelatterispagenumber)1.COMPREHENSIVECOMMENTS (REVIEW)SomethoughtsonproblemsfacedbyChina′saluminumindustryafterentryofWTOTAOZunhuaandYINJianhua( 1,3)……………………………………Thepresentsituationofgalliumproductionandapplicatio…  相似文献   

8.
InsituObservationofThermalBehaviourofImplantedHeinTibyMeansofEnhancedProtonElasticBackscattering(EPEBS)XiaZonghuang,ShenDingy...  相似文献   

9.
Mechanism of non isothermal reaction between elemental powders Ti and Al   总被引:2,自引:0,他引:2  
1 INTRODUCTIONElementalpowdermetallurgy (EPM )hasdrawngreatattentioninthepreparationofTiAl basedalloysforitsadvantagesofcost savingandconvenienceinoperation[1~ 5 ].Currently ,themechanicalpropertiesofEPMTiAl basedalloyarealmostashighasthoseoftheforgedTiAl bas…  相似文献   

10.
1INTRODUCTIONElectrochemicalindustryisingeneralahugeenergyconsumer.Electrocatalysis,asapowerfulweaponinloweringoverpotential,...  相似文献   

11.
1 IntroductionRE AlandRE Al Mearepotentialamorphousalloy[1]andhydrogen absorbingmaterials[2 ].RareEarth ,asadditionalele mentsinaluminumandAl transitionmetalsalloy ,canimprovemechanicalpropertiesofthefinalmaterials[3].Thephasediagramandthermodynamicpropertiesoft…  相似文献   

12.
1 INTRODUCTIONTheevolutionoftextureinaluminumanditsal loysduringdeformationandannealinghasbeeninves tigatedusingtheelectronbackscatteringpattern (EB SP)techniqueinascanningelectronmicroscope(SEM )andtheorientationdistributionfunctions(ODFs)usedforanumberof…  相似文献   

13.
PROSPECTIVEDEVELOPMENTOFAVIATIONMATERIALSR.E.Shalin(StateResearchCenter,All-RussianScientificResearchInstituteofAviationMater...  相似文献   

14.
CONTENTS1ExtractiveMetallurgy(7)2MetalMaterialsandTechnology(7,8)99-1-7  ResearchofCyclocarbonateExtractantsforPreciousMetals  Sixcyclocarbonateextractantsofaserieshavebeensynthesized.Theirextractionproperties,suchasextractionspeed,phaseseparati…  相似文献   

15.
1-IntroductionSinceDupiusetal[1,2]showedthatmetalorganicvaporphaseepitaxy(MOVPE)couldbeusedforthefabricationoflasersandsolarcells,MOVPEhasdevelopedintoamaturetechniqueforthegrowthofawidevarietyofsemiconductordevicematerials[3].Oneoftheadvantagesofth…  相似文献   

16.
Endohedralfullereneshaverecentlyattractedconsiderableinterest.Experimentally,ithasbeenconfirmedthatatleastmorethanonelanthanum,yttrium,andscandiumformscanbeencapsulatedinsideC82orC84infullereneformationprocessesusingarcdischargevaporizationofcompos…  相似文献   

17.
1.IntroductionTheENdepositpossessesmanyadvantagessuchasremarkablecorrosionandabrasionresistant,quitegoodweldingabilityandeventhickness.Therefore,TheENtechniquehasbeendevelopedrapidlyandwidelyusedsincethefifties〔1〕.However,therearestillseveralthingsth…  相似文献   

18.
SubscriptioninformationACTAMETALLURGICASINICA(EnglishLetters)amajorjournalofmaterialsscienceinChina,isabimonthlyscientificper...  相似文献   

19.
1 COLLECTORLESSFLOTATION1.1 NaturalfloatabilityTheinherenthydrophobicityoncethoughttobetypicalofsulfides[1] isnowthoughttoberestrictedtosulfidessuchasmolybdeniteandothermineralsorcompoundwithspecialstructuralfeatures .Mineralssuchasmolybdenite ,orpiment ,re…  相似文献   

20.
InstructionstoAuthorsContributionsmustbewritteninEnglishonly.TheyshouldhaveanabstractinEnglish.Theyshouldbesubmittedinduplica...  相似文献   

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