学科分类
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29 个结果
  • 简介:Inrecentyears,Chinahasfullydevelopedinoutput,quality,andtechnicaladvancementofrefractories,andbecomethebiggestcountryinrefractoriesproductionandconsumptionintheworld.Meanwhile,educationandtraininginChina'srefractoriesindustryhavedevelopedrapidly.Thispaperintroducesthepresentsituationsofundergraduateeducation,postgraduateeducation,academiceducation,andvocationalandothertrainingofChina'srefractoriesindustry,includingthestudentrecruitingsituation,subjectarrangement,teachersforce,andR&Dequipmentlevel,andalsoputsforwardsomesuggestionsforChina'srefractorieseducationandtraining.

  • 标签: 耐火材料生产 职业培训 材料行业 本科教育 中国 研究生教育
  • 简介:Chinahasbeenthebiggestcountryinproductionandexportingofrefractories.Thearticledescribestheproblemsintheexportandimportandsuggestionsondevelopmentofrefractories.Inthefuture,Chinawillexpanditscooperationwithworldrefractoriescommunityinscience,technology,economyandtradetoplayamoreimportantroleintheinternationalanddomesticmarkets.

  • 标签: 中国 耐火材料 进口 出口
  • 简介:ThearticlestatesChinaisagreatnationinproducingandexportingrefractoriesandrefractoryrawmaterials,which,hasearnedmuchforeignexchangeforourcountry,onlyafewadvancedrefactorymaterial,zirconandchromeoreareneededtobeimported.Thear-ticlepointsouttheproblemsintheexportandimport,andraisessuggestionsondevelopment.AftertheentryofWTO,Chinawillexpanditsco-operationswithothercountriesinscience,technology,economyandtradetoplayamoreimportantroleintheworldmarket.

  • 标签: 耐火材料 原材料 中国 出口制品 进口制品
  • 简介:TheannualoutputofChina'srefractoriesin1949was74thousandtons,andwas29.11milliontonsin2007,whichwas65%oftheworldtotalrefractoriesoutput.TheexportofChina'srefractoryproductsandrawmaterialsin2008was6.18milliontons,whichwereexportedtohundredsofcountriesandregionsintheworld.Chinaisabigcountryinthefieldofrefractoriesproductionandrefractoriesexport,whichhasdevotedalottorelativehightemperatureindustry.

  • 标签: 耐火材料 行业 中国
  • 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:Ni-dopedphenolresinwaspreparedwith1∶100massratioofNi(NO_3)_2·6H_2Otothermosettingphenolresintooptimizethestructureandpropertiesofpyrolyticcarbonderivedfromphenolresinandincreaseitscarbonyield.Thespecimenswerecuredat200℃andcarbonizedunderdifferentatmospheres(carbon-embeddedatmosphereandAratmosphere)andatdifferenttemperatures(600,800,1000and1200℃)for3h,respectively.Thecarbonyieldwasmeasured.ThermaldecompositioncharacteristicsofNi-dopedphenolresin,andtheoxidationresistance,phasecompositionandmicrostructureofpyrolyticcarbonwerecharacterizedbydifferentialscanningcalorimetry,X-raydiffraction,energydispersivespectroscopy,scanningelectronmicroscopyandtransmissionelectronmicroscopy.TheresultsshowthatthecarbonyieldofNi-dopedphenolresincarbonizedat800or1000℃isincreasedsignificantly,comparedwiththatwithoutanydopants.ThegraphitizationdegreeofpyrolyticcarbonstructurederivedfromNi-dopedphenolresinincreaseswiththeincreaseofcarbonizationtemperature.Themassivemulti-wallcarbonnanotubesof50-100nmindiameterandofmicrometrescaleinlengtharegeneratedat1000℃.Comparedwiththecarbonembeddedatmosphere,carbonnanotubescanbemoreeasilygeneratedinAratmosphere,resultinginhighercarbonyieldanddegreeofcrystallinityofthepyrolyticcarbonderivedfromNi-dopedphenolresin.TheoxidationresistanceofthepyrolyticcarbonderivedfromNi-dopedphenolresinat1200℃isimprovedsignificantlyanditshighestoxidationtemperatureisincreasedbyabout84℃,comparedwiththatfromNifreephenolresin.

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  • 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:Thispaperintroducesofthedevelopmentandapplica-tionofheavilyburnedmullitedbrickwithhighreractorinessunderloadlowcreep,whichismadeofandalusiefineandcoarsegrains(asaggregate),highaluminabauxiteproducedinYangquancounty,clayproducedinGuangxiprovine,industrialaluminapowderandsilliman-itepowder(asmatrixmaterial)andalittleamountofad-ditivesandbondedwithsyntheticbond.

  • 标签: 发展趋势 莫来石 耐火材料 多铝红柱石 低蠕变性
  • 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