资源描述：
《燃烧合成钇铝石榴石(YAG)绝热温度计算与实验验证》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、MaterialsTransactions,Vol.51,No.12(2010)pp.2230to2235#2010TheJapanInstituteofMetalsPredictingtheAdiabaticTemperatureofTransparentY3Al5O12PreparedviaCombustionSynthesisunderUltra-HighGravityYuepengSong1;2,HyoungSoepKim1;*,ChongSooLee1,JiangtaoLi3andJunPei31DepartmentofMater
2、ialsScienceandEngineering,PohangUniversityofScienceandTechnology(POSTECH),Pohang790-784,Korea2MechanicalandElectronicEngineeringCollege,ShandongAgriculturalUniversity,Tai’anShandong271018,China3TechnicalInstituteofPhysicsandChemistry,ChineseAcademyofSciences,Beijing100190,
3、ChinaInthispaper,theadiabatictemperatureofatransparentyttriumaluminumgarnet(YAG)preparationusingaNiO/Al/Y2O3aluminothermicsystemwascalculatedbasedonathermodynamictheory.Theresultsshowthattheadiabatictemperaturewithoutpreheatingreachesthe2891K,whichishigherthanthemeltingpoi
4、ntsofYAGandNi.Theliquidphasemixtureproductscanbeseparatedanddensifiedunderultra-highgravity(UHG).Inthepreheatingtemperaturerangeof620K2790Ktothereactantsofthissystem,theadiabatictemperatureisthesameas3156K,theboilingpointofNiproducts.Thetheoreticalanalysesandexperimentalre
5、sultsprovetheeffectivenessoftheYAGfabricatedviacombustionsynthesisunderanultra-highgravityfield.[doi:10.2320/matertrans.M2010266](ReceivedAugust6,2010;AcceptedSeptember30,2010;PublishedNovember25,2010)Keywords:adiabatictemperature,transparentY3Al5O12,combustionsynthesis,ultr
6、a-highgravity(UHG)1.Introductionvarioussystemsundergravityconditionshasbecometheimpetusforavarietyofinvestigations.ThemethodofYttriumaluminumgarnet(Y3Al5O12,YAG)isanimpor-combustionsynthesisundertheUHGfieldisbeingre-tantceramicmaterialwithpromisingchemicalstability,andsearc
7、hedwidelybymaterialresearchers.13,14)opticalandmechanicalpropertiesthatmakeitwidelyusedinTheadiabatictemperatureTadanalysisplaysanimportantlasermaterials,luminescencesystems,windowmaterialsforroleinthermodynamicstudiesoncombustionsynthesis.15–18)avarietyoflamps,andfibermate
8、rialsforthepreparationofFirstly,theadiabatictemperatureisacrucialvariableceramiccomposite
