简介：DiamondfromLiaoning,Chinawasstudiedbysynchrotronradiationandinfraredspectrum.Thedistributionofdislocationsinthespecimenthasbeenrevealed.Anewmethodtodeterminetheorientationofcrystaldefectshasbeenproposedandtheorientationindexesofthedislocationsinthespecimenwerecalculatedbythismethod.Ithasbeenfoundthatthedislocationsinthespecimentarenearbutnotpreciselyparallelto{111}planes,Themaximumanglebetweendislocationand{111}planeisabout16°.AlmostallthedislocationsinthespecimenthavethesameBurgersvector1/2[101]andimplythesamenessoftheirorigination.

简介：Thepaperdescribestheproposedmodelsofdiamondformationbothinmeteoritesandinkimberliteandlamproitebodies.metamorphiccomplexesandexplosive-ringstructures('astroblemes'),Thediamonddistributioninmeteorites(chondrites,ironmeteoritesandureilites)isrestrictedtotaente-kamasitephase.Thediamondgenerationhereistiedupwiththefirststageofevolutionoftheplanets,Thisstageischaracterizedbyhighpressureofhydrogen.leadingtotheformationoftheplanetenvelope,Thesecondstageofplanetevolutionbeganwiththeprogressiveimopoverishmentoftheiratmospheresinhydrogenduetoitspredominantemissionintothespaceandtoprogressivedevelopmentofoxidativeconditions.Themodelappearstohaveprovedtherelictnatureofdiamondmineraolizationinmeteorites.Diamondandotherhigh-pressureminerals(its'satellites')werecrystallizedwithoutanyexceptionintheearlyintratelluricstagesofperidotiteandeclogite-pyroxenitemagmaevolutionjustbeforethemagmaintrusionintothehigherlevelsofthemantleandcrustwherediamondisnotthermodynamicallystable,Theultramaficintrusivebodies(bearingrichrelictdiamonds)inthedaseofaplatformpaaeartobethesubstratafortheformationofkimberlite-lamproitemagmachambersasaresultofmagmaticreplacement.Themodelexplainsthepolyfacialnatureofdiamondiferouseclotgites,pyroxenitesandperidotitesanddiscussestheprocessofinheritanceoftheirdiamondmineralizationbykimberlitesandlamproites.Dimondoproductivityofmetamorthiccomplexesisoriginatedbytheinheritanceoftheirdiamondsfromtheabove-mentionedprimarydiamondiferousrocks.Largediamondiferousexplosive-ringstructureswereformedbyhigh-energyendogenicexplosionoffluidwhichcamefromtheEarth'score.Thishighenergydiffersendogenicimpactogenesisfromexplosivevolcanism.Itproceedsatveryhightemperaturetocreatediaplecticgalsses(monomineralpseudomorphs)-theproductofisochoricmelting,atthepressurehighenoughforth

简介：

简介：有bimodal粒子尺寸的钻石/铜composites的热传导性被学习。composites与40和100颗m尺寸钻石的混合物通过液体铜的压力渗入被准备进钻石预先形成。有钻石的不同coarse-to-fine体积比率的预先形成的渗透被调查。有bimodal尺寸分发的钻石/铜composites的热传导性与从Chu开发的一个分析模型导出的理论价值相比。钻石/铜composites能到达更高热的传导性，他们的表面粗糙能被使用bimodal钻石粒子尺寸改进，这被预言。

简介：

简介：<正>Theglobaltransitionawayfromhydrocarbonstowardenergyalternativesincreasesdemandformanyscarcemetals.Amongtheseislithium,akeycomponentoflithium-ionbatteriesforelectricandhybridvehicles.

简介：

简介：Thehalogenatedboron-dopeddiamond(BDD)surfaceswerereactedwithsodiumazidethroughanucleophilicsubstitutionreaction.Theresultingazide-terminatedBDDsurfaceswereusedtotriggerthe'click'reaction.Becauseoftheattractiveelectrochemicalpropertiesofferrocene-containingmolecules,suchasfastelectrontransferrates,reversibleredoxactivities,andfavorableredoxpotentials,weshowthatferrocenederivativescanbegraftedontonon-oxidizeddiamondsurfacesbyclick'chemistry'.Theseredox-activeferrocene-containinglayersonaBDDsurface,becauseoftheirabilitytostoreandreleasechargesreversibly,havethepotentialtobeusedashybridmolecular/semiconductormemorydevices.

简介：AnewtechniqueofthesynthesisofNanocrystallineDiamond(NCD)Filmsbyheliconwaveplasma(HWP)chemicalvapordepositionatroomtemperaturewasreported.ThegrowthmorphologyandtheroughnessofNCDsampleswascharacterizedusingfiledemissionscanningelectronmicroscopy(SEM-SU8010)andatomforcemicroscopy(AFM),respectively.Theresultsshowthegrowthrateofthefilmwasveryfast,about833nm/min.TypicalG,Dbands

简介：钻石粒子增强了铝硅矩阵composites，作为艾尔(Si)/diamondcomposites缩短了，被制作由压榨扔。微观结构和composites的机械性质上的Si内容的效果被调查。机械性质被发现monotonically增加，Si内容增加直到7.0?wt%。Al-7.0?wt%Si/diamond合成展览78的张力的力量?MPa，230的弯曲力量?426的MPa，和压缩力量?MPa。Al-Si最容易溶解的阶段被显示紧与艾尔矩阵和钻石粒子连接，它为在艾尔(Si)/diamondcomposites的机械性质的改进负责。

简介：SignatureDiamond极具艺术气息的靓丽外形是其最夺目之处．它的外形出自英国著名的工业设计师KennethGrange之手．SignatureDiamond的箱体是椭圆造型．采用多层夹板制造．内部同样设有Matrix矩阵加强结构。SignatureDiamond箱体顶端是一块倾斜的金属板，上面安放着用产自意大利的大理石制造的高音单元腔体．纯天然的花纹绝不会出现重复．因此每一只SignatureDiamond音箱都可谓是独一无二。

简介：在2月号里，我们曾经评测过迈拓最新的DiamondMaxPIus9硬盘，但当时我们拿到的样品是并行ATAl33的版本，而且是来自美国的工程样品。前不久，我们又收到一块DiamondMaxPlus9样品，不过这次是准备在国内上市的SATA硬盘，而且是系列中容量最高的200GB产品。

简介：ThediamondfilmshavebeendepositedbythehotfilamentCVDmethodonmolybdenumsubstratesfromthemixturereactantgasofacetoneandhy-drogen.Thesurfacemorphologiesoftheobtaineddiamondfilmsundervariousde-positionconditionshavebeenobservedbyscanningelectronmicroscope(SEM).Theexperimentalresultsstronglyindicatethatthesurfacemorphologiesofthere-sultingfilmshavecloselyrelatedtothedepositionconditions,i.e.,reactionpres-sure.Formolybdenumsubstrates,underthelowerreactionpressurethesurfacemorphologiesofthegrainscomprisingtheresultingfilmsmainlydisplaythesmallsinglecrystalcubo-octahedronanddoublesmallcrystalcubo-octahedron;underthehigherreactionpressure,thesurfacemorphologiesmainlydisplaythelargecauliflower-like.TheseresultsshowthattherearevariouscrystalhabitsforCVDdiamondundervariousdepositionconditions.

简介：Diamond-likecarboncoatingshavebeenusedassolidlubricatingcoatingsinvacuumtechnologyfortheirgoodphysicalandchemicalproperties.Inthispaper,thehybridtechniqueofunbalancedmagnetronsputteringandplasmaimmersionionimplantation(PIll)wasadoptedtofabricatediamond-likecarbon-basedfunctionallygradientfilm,N/TiN/Ti(N,C)/DLC,onthe304stainlesssteelsubstrate.ThefilmwascharacterizedbyusingRamanspectroscopyandglancingX-raydiffraction(GXRD),andthetopographyandsurfaceroughnessofthefilmwasobservedusingAFM.Themechanicalpropertiesofthefilmwereevaluatedbynano-indentation.Theresultsshowedthatthesurfaceroughnessofthefilmwasapproximately0.732nm.Thehardnessandelasticmodulus,fracturetoughnessandinterfacialfracturetoughnessofN/TiN/Ti(N,C)/DLCfunctionallygradientfilmwereabout19.84GPa,190.03GPa,3.75MPa.m1/2and5.68MPa@m1/2,respectively.ComparedwiththatofDLCmonolayerandC/TiC/DLCmultilayer,thisDLCgradientfilmhasbetterqualitiesasasolidlubricatingcoating.

简介：Wehaveinvestigatedthephysicalproperties,includingthemorphology,texture,adhesionandchemicalquality,ofhigh-frequencychemicalvapourdepositeddiamondcoatingsonWC-6%Cosubstrates,whichwerepre-treatedbyatwo-stepetchingmethod.TheresultsindicatethattheincreasingCocontentfrom0.12to3.05%withintheetchingdepthof5μmcausedamorphologytransformationfromprismdiamondtospheruliticdiamond,andatexturetransformationfroma{111}orientationtoa{110}orientation.TheRamanspectrumshowsthatthespheruliticdiamondfilmcontainsmorenon-diamondphases(graphite,amorphouscarbonanddiamond-likecarbon,etc)andhaslowerchemicalqualitythandiamondfilmsonaWC-6%Cosubstrate.Thediamondcoatinggrainsizesbecameaboutfourtimessmallerwhenthedepositiontemperaturesonthesubstratesurfacewerereducedfrom1000to900℃.Comparedwithspheruliticdiamondfilms,theprismdiamondfilmsexhibitbetteradhesionontheWC-6%Cosubstrate.

简介：无

简介：

简介：Thedesignmethodsofanodeandcathodeareproposedforprecisionprofilegrinding.Basedontheelectrolyticmachiningtheory,electrolyticequilibriumconditionandFaraday′slawofelectrolysisareappliedtoestablishingthemathematicalmodelofprofilediamonddressingprocess-es.Afiniteelementmethod(FEM)programisdevelopedtosolvetheinverseboundaryproblemofLaplace′sequation.Desiredanodecontourorcathodeshapeisdeterminedbycomputingthedistributionofelectricpotentiallayerbylayer.Electrolyticmachiningexperimentiscarriedouttoverifythesimulatedanodeshape.Theresearchresultshowsthatshapedeviationbetweendesignedcathodeandprofilewheelincreaseswiththevalueofanglebetweenfeedrateandthenormaltoanodesurface.Theshapeofsimulatedanodeisconsistentwiththecontourofmetal-bondeddiamondprofilewheelforagivencathode.Basedontheanodecontour,cathodeshapecanalsobedesignedaccurately.

简介：Tensilica公司和MediaPhy公司共同宣布，位于加州SanJOSe的MediaPhY公司获得Tensilica公司业界最低功耗的32位处理器内核一Diamond108Mjnf的授权。MediaPhy利用DiamondStandard108Mini进行手机电视产品的开发。

简介：Highlyc-axis-orientedZnOfilmsweredepositedsuccessfullyonthenucleationsidesoffree-standingdiamond(FD)filmsbythedirectcurrent(DC)magnetronsputteringmethod.Theeffectofthesputteringparameters,suchaspower,gaspressureandsputteringplasmacompositionofAr-to-O_2,onthepropertiesofZnOthinfilmswasinvestigatedindetail.X-raydiffraction(XRD)measurementsshowedthat,atasputteringpowerof200W,gaspressureof0.5PaandanAr-to-O_2compositionof1:1,ahigherintensityofthe(002)diffractionpeakandanarrowerfullwidthathalfmaximum(FWHM)weredetectedwhichmeanthighc-axisorientationandhighqualityoftheZnOfilms.ToimprovethequalityoftheZnOfilm,athinZnOlayerwaspre-grownasahomo-bufferlayer.XRDmeasurementsshowedthatthisbufferlayerhadabeneficialeffectonthestructuralandmorphologicalpropertiesofthepost-grownZnOfilm.