简介：Carbon-containingrefiactoriesareeasilyoxidizedathightenperature,thusmakingserviceliferapidlydrop.Theanti-oxidationmethods,suchasimpregnationandaddinganti-oxidatonagents,can'tmeettherequire-mentsofindustry'sdevelopmentandsomespecialcases,Byanalyzingthecharcteristicsofseveraloxidesandnon-oxidesrawmaerials,theoxidationresistantmechanismoftherefractoryanti-oxidationcoatings(RAOC),whichpossessthecharacteristcofself-healingathighttemperature,isdiscussed.

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简介：Hydrationcracksofmagnesia-spinelbricksincementindustryhavebeenseriousproblemsforbothrefractoryproducersandrefractoryusersforalongtime.Whenmagnesia-spinelbricksarekeptformorethan6months,thebrickstendtohavereactionwithwaterormoistureandresultincracksandlossontheirstructuralstrength.Thosebrickscannotbeusedanymoreandcausesubstantiallossfortherelatedparties.In2013,theSiamRefractoryIndustryCo.,Ltd.,Thailand,successfullydevelopedandappliedaspecialnano-technologytocreate'Anti-HydrationMagnesia-SpinelBricks'forcementindustrywhichcanhavethestoragetimemorethantwoyearseveninhighhumidityareas.Thecementproducerscanensurethatallbricksstillhavegoodpropertiesasthenewones.

简介：TheeffectoftheadmixturesofAlandSimetalsandB4CandMgAlONcompoundsontheoxidationofMgO/Si3N4compositerefractoryhasbeenstudied,whichisapromisingcarbonfreerefractoryforsteel-makingapplicatlon.Thefourkindsofadmixturescanbeusedasanti-oxidantsforSi3N4,butthemixtureofAlandSiachievedthebestresult.Themixturecannotonlyplaytheroleasantioxidant,butalsoassistthesinteringprocessandhelpformdensesinteringlayer,improvingthepropertyofthecomposite.