学科分类
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23 个结果
  • 简介:Nasiconthinfilmsof15μmthickonYSZsub-strateswerepreparedbymeansofsolidstatereactionat1230℃for10hours,Stucturalcharacteriza-tionofthefilmswereperformedbyXRD,SEMandEDX,AnewtyypeofCO2gassensorwithNasiconthinfilmassolidelectrolytewasdeveloped.

  • 标签: 固态离子 薄层 结构 固体电解质电池 机械加工 氧化铝
  • 简介:ThetendsofrefractoriesdevelopmentinChinainthenewcenturyhavebeendiscussed,ThemainR&Dthemesforthefirstdecadearesuggestedtobasfollow:(1)Highqualitysyntheticrwamaterialsbasedonourrichresourcesofbauxiteandmagnesite;(2)Highperformancefunctionalrefractoriesbasedonsyntheticrawmaterials;(3)Oxideandnonoxidecompsitematerialsprinci-pallyforapplicationsatcriticalareasofhightemperaturenewtechnologies.

  • 标签: 中国 耐火材料工业 原料 菱镁矿 发展 铝土矿
  • 简介:Thepotentialapplicationsofsomehightenologiesinrefractories,suchas,nanotechnology,in-situsynthesis,self-propagatinghigh-temperaturesynthesis,functionalgradientmaterials,computerassisteddesignandsomenewadvancedrefactoriesinSi-Al-O-Nsystemarebrieflydescribed.Thecharacteristicsandpreparationprocessesofthesenewrefractoriesareintroduced,andtheremainingproblemsawaitingeffectivesolutionsarepointedout.Somesuggesionsonfuturediectionofresearchanddevelopmentarefitlymade.

  • 标签: 耐火材料 纳米技术 功能梯度材料 自动传输技术 自动扩展技术
  • 简介:IntheprocessofVHD,argonisblownintothemoltensteelthrouhttheporousplugswhicharemountedintheladlebottom.AnewtypeofporouscorundumplughasbeendevelopedfortheVHDsecondaryrefiningladlefurnaceinFushunSteelWorks,Itisfoundthatwhenthemeangrainsizeofcorundumarticlesdecreasesfrom760μmtp650μm,thephysicalpropertiesandservicelifeoftheplugarethesameasthatofimportedone,andcanbenormallyusedintheVHDprocess.

  • 标签: 多孔塞 氩气 冶金精炼设备 VHD 刚玉 金刚砂
  • 简介:CurrentlytheservicelifeofCDQshaftsinChinaismainlyrestrictedbythepropertiesoftheinclinedfluebricks.Inthiswork,basedonthesystematicanalysisofthedamagemechanismofinclinedfluerefractories,highperformancemullite-SiCbricksweredeveloped.Thebrickswereproducedbycorundum,andalusite,SiCandotherhighpurityrawmaterials.Metalsiliconandaluminaultramicropowderwereaddedtoformdispersionmulti-phasestructure,fortifyingthematrixandimprovingthemicrostructure.Theproductshaveexcellentpropertiessuchaslowporosity,highdensity,goodwearresistance,highrefractorinessunderload,andgoodthermalshockresistance.Theproductscanreplacetheordinarymullite-SiCbricksandobtainagoodservicelife.

  • 标签: 莫来石砖 干熄焦 性能 荷重软化温度 碳化硅砖
  • 简介:Itisexpectedthatinthenewcentury,tocopewithdevelopmentsofnewhightemperaturetechnologies,anewgenerationofhighperformancerefractoryceramicswillemergeandflourishwhichshouldincludethefollowing(1)oxideandnonoxidecompositescharacterizedbyauniquecombinationofhighhotstrength,highthermalshockresistanceandhighcorrosionresistance;(2)freeCaObearingbasicrefractoriescapableofpurifyingmoltenmetalforimprovingcleanlinessandofabsorbingcontaminantsfromwastegasesforreducingenvironmentalpollution;(3)freeflowingzerocementcastableswithimprovedthermomechanicalproperties,thermalshockresistanceandcorrosionresistanceandgradientcastableswithvaryingmatrixcompositionandvaryingtexture.

  • 标签: 耐火陶瓷材料 氧化复合材料 氧化钙 非氧化复合材料
  • 简介:Althoughhigh-performancebasicrefractorymaterialsplayanessentialroleinstate-of-the-artsteel-making,magnesiacastableshavenotbeenwidelyuseduntilnow.Amajorchallengeisthatbruciteformation(Mg(OH)2)duringMgOhydrationcausesvolumeexpansionandsubsequentcracking—aphenomenoncommonlycalled"slaking".Toovercomeproblemsrelatedtoslaking,anewspecialtyproduct,SioxX-Mag,hasrecentlybeendevelopedforcement-freeMgOcastablesbasedonMgO-SiO2-H2Obond.Specimensfromindustrial-scale-sizedblocksafterdry-outwerecharacterisedbySEMandXRDtechniques.UsingSioxX-Magincombinationwithmicrosilica,crackingcausedbybruciteformationissuppressed.Theresultsdemonstratethatthedosageofmicrosilicaplaysessentialrolesinthecrackformationinlargesamples.Furthermore,thecompatibilityofSioxX-Magwithdifferenttypesofbasicaggregates,mediumtohigh-gradedead-burnedmagnesiaandolivine,hasalsobeenevaluated.High-performance,self-flowingcement-freeMgOcastableshavebeendeveloped.

  • 标签: 镁质浇注料 氧化镁 水泥 添加剂 MG(OH)2 流动
  • 简介:OnJuly11,2013.aprojectofAnhuiShengshiNewenergyMaterialsandTechnologyCo.,Ltd.wasputintoproductionwithanannualcapacityof40thousandtonsquartzglass,whichwasthelargestquartzglassproductionlineintheworld.Thetotalinvestmentofthe

  • 标签: 新能源 一期工程 投产 安徽 石英玻璃 玻璃生产线