热线法测量材料热导率

©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:(2006):(1960),,,,.1,2(11,621010;21,063000):SHT-20,,.:SHT-20;;:O55113:A:100020712(2007)0720040203SHT-20,[1].,,[2].1,,,,.,[3-5].SHT-20,.,.1.1,,,.(),:,;,.(),[3]5(r,t)5t=a52(r,t)5r2+1r5(r,t)5r(1).r,t;(r,t)rt,(r,t)=T(r,t)-T(r,0);a=c,,,c.(1),d(r,t)dt=q4te-r24at(2)(2):,t=0,(),,q,r,.,q,IRq=I2R/l(3),l().1.2t=0t,r,t(2),(r,t)=q4t01te-r24atdt(4)y=r2at,(4)(r,t)=q2y1ye-y2dy(5)(5),,267Vol.26No.720077COLLEGEPHYSICSJuly2007©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(r,t)=-q4C+ln|y|-y211!+y422!-y633!+:y=r2at,.,(r,t)-q4C+lnr2at(6),C=0157726,.,y=r2at,(),(r,t1)(r,t2),=(r,t2)-(r,t1)(7)(6),=q4lnt2-t0t1-t0(8)t0.2,,,.,,100200300mm3(),,,.TAS,.TAS,.,,..,.t0.,,;.,,.1.13,I=01448A,8116013110m.q=51266Wm-1.,-(100),,1.1t0/st1/s1/Kt2/s2/K/K/Wm-1K-1222.492339.275308.900343.7754.5003.21710-2226.811339.525313.221343.9004.3753.25210-2231.131339.775317.541344.0254.2503.29110-212.967235.451340.025321.862344.2754.2503.23710-2239.775340.275326.181344.4004.1253.28010-2244.093340.525330.502344.6504.1253.22810-2248.414340.775336.981344.9004.1253.24510-2:p=68%,=010110-2Wm-1K-14SHT-20,.,.7,:41©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[1],,,.[J].,2002,22(10):325.[2],.[M].:,1981:107.[3]JP.[M]..:,1981:6.[4],,.[J].,2006,24(6):47249.[5],.[J].,2005,24(2):27228.ThermalconductivitymeasurementbythermallinemethodYANGZhen2ping1,WEISha2sha2(1.SouthwestUniversityofScienceandTechnology,Mianyang,Sichuan621002,China;21NorthChinaCoalMedicalCollege,Tangshan,Hebei063000,China)Abstract:TheprincipleandmethodofthethermalconductivitymeasurementarediscussedbasedonthethermallinemethodonSHT-20automaticmeasurementapparatus.Andthecorrespendingresultsisalsogivenandanalyzed.Keywords:SHT-20automaticmeasurementapparatus;thermallinemethod;thermalconductivity.,,(),.10,,CVDZnSeCVDZnSCVDCLEARTRANZnS.:.1150mm;1200mm;.:,.:,.5200mm.:,.5200mm.:5200mm.().:,SMA,.:49B#306:010-88096218/88096217:010-88096216::[e-mail],[e-mail],[e-mail]4226