学科分类
/ 1
2 个结果
  • 简介:Yttriumaluminumgarnet(YAG)transparentceramicswerefabricatedbysinteringatoxygenatmosphere.Tetraethylorthosilicate(TEOS)wasaddedasthesinteringadditivetocontrolthegraingrowthanddensification.Poreswereeliminatedclearlyattemperaturelowerthan1700oC,whilegrainsizewasaround3μm.Thein-linetransmittancewas80%at1064nmwhensamplesweresinteredat1710oC.TheeffectofTEOSwasstudiedinoxygenatmospheresinteringforNd:YAGtransparentceramics.Athighertemperaturelike1710oC,thegraingrowthmechanismwassolutedrag,whileat1630and1550oCthegraingrowthwascontrolledbyliquidphasesinteringmechanism.And0.5wt.%TEOSwasthebestaddingcontentforNd:YAGsinteredinoxygenatmosphere.

  • 标签: Nd YAG陶瓷 烧结助剂 氧气氛 晶粒生长 TEOS
  • 简介:BasedonMM5,POM,andWW3,aregionalatmosphere-ocean-wavecoupledsystemisdevelopedinthisworkundertheenvironmentofMessagePassingInterface.ThecoupledsystemisappliedinastudyoftwotyphoonprocessesintheSouthChinaSea(SCS).Theresultsshowthatthecoupledmodeloperatessteadilyandefficientlyandexhibitsgoodcapabilityinsimulatingtyphoonprocesses.Itimprovesthesimulationaccuracyofthetrackandintensityofthetyphoon.Theresponseofoceansurfacetothetyphoonisremarkable,especiallyontherightsideofthetyphoontrack.Theseasurfacetemperature(SST)declines,andtheoceancurrentandwaveheightareintensified.Inthecouplingexperiment,thedeclineofSSTintensifiesandtheinertialoscillationamplitudeoftheoceancurrentincreaseswhentheocean-waveeffectisconsidered.Therefore,theatmosphere-ocean-wavecoupledsystemcanhelpinthestudyofair-seainteractionandimprovethecapabilityofpredictingandpreventingweatherandoceanicdisastersinSCS.

  • 标签: atmosphere-ocean-wave coupled model numerical simulation STUDY