Dab tsi yog qhov cuam tshuam ntawm Resistivity Ntawm Ntshiab Hlau Hlau Qws

Lub resistivity ntawm ntshiab hlau hlau pas nrig yog cuam tshuam los ntawm ntau yam, uas tuaj yeem ua tiav rau hauv cov hauv qab no:
1, Khoom siv purity
Mechanism ntawm kev cuam tshuam: impurities hauv cov hlau ntshiab, xws li carbon, silicon, manganese, sulfur, phosphorus, thiab lwm yam, tuaj yeem cuam tshuam rau nws cov hluav taws xob tiv thaiv. Qhov siab dua cov ntsiab lus ntawm impurity ntsiab, qhov ntau dua qhov cuam tshuam rau kev txav ntawm electrons hauv cov khoom, uas ua rau muaj kev nce hauv kev tiv thaiv.
Cov nyhuv cuam tshuam: Yog li, high-purity ntshiab hlau coils feem ntau muaj qis hluav taws xob tiv taus.
2, Kub
Mechanism ntawm kev cuam tshuam: Kub yog ib qho tseem ceeb ntawm kev cuam tshuam cov hlau resistivity. Raws li qhov kub thiab txias, cov thermal txav ntawm atoms hauv cov hlau intensifies, thiab zaus ntawm kev sib tsoo ntawm electrons thiab atoms thaum lub sij hawm lub zog nce, uas ua rau ib tug nce nyob rau hauv hluav taws xob resistivity.
Cov nyhuv: Nyob rau hauv chav tsev kub, lub resistivity ntawm ntshiab hlau hlau pas nrig yog kuj tsis tshua muaj thiab ruaj khov. Txawm li cas los, nyob rau hauv high-kub ib puag ncig, nws resistivity yuav nce.
3, Crystal qauv
Mechanism ntawm kev cuam tshuam: Cov qauv siv lead ua ntawm cov hlau ntshiab kuj cuam tshuam rau nws cov hluav taws xob tiv thaiv. Cov qauv siv lead ua sib txawv muaj qhov sib txawv ntawm qhov cuam tshuam ntawm electrons, yog li cuam tshuam rau qhov loj ntawm hluav taws xob tiv thaiv.
Cov nyhuv cuam tshuam: Piv txwv li, los ntawm kev hloov cov qauv siv lead ua ntawm cov hlau ntshiab los ntawm kev kho cua sov lossis kev ua deformation, nws qhov kev tiv thaiv tuaj yeem hloov kho rau qee yam.
4, Kev ntsuas ntsuas
Influence mechanism: Kev ntsuas ntsuas ntawm qhov kev tiv thaiv kuj tseem cuam tshuam los ntawm kev ntsuas kev ntsuas (xws li cov cuab yeej ntsuas, ntsuas kev ntsuas, ntsuas ib puag ncig, thiab lwm yam). Cov kev ntsuas sib txawv tuaj yeem ua rau muaj qhov sib txawv me ntsis hauv qhov ntsuas qhov ntsuas qhov ntsuas.
Cov nyhuv cuam tshuam: Yog li ntawd, thaum ua qhov ntsuas kev tiv thaiv, nws yog ib qho tsim nyog los xyuas kom meej qhov sib xws thiab qhov tseeb ntawm cov kev ntsuas ntsuas kom tau txais cov txiaj ntsig ntsuas kev ntseeg tau.
Nyob rau hauv cov ntsiab lus, cov hluav taws xob resistivity ntawm ntshiab hlau hlau pas nrig yog cuam tshuam los ntawm ntau yam xws li cov khoom purity, kub, siv lead ua qauv, thiab ntsuas tej yam kev mob. Hauv kev siv tswv yim, nws yog ib qho tsim nyog yuav tsum xav txog tag nrho cov kev cuam tshuam ntawm cov yam ntxwv ntawm kev tiv thaiv kom ntseeg tau qhov tseeb thiab kev ntseeg siab ntawm cov txiaj ntsig ntsuas. Lub caij no, los ntawm kev ua kom zoo dua cov txheej txheem kev npaj cov khoom thiab kev ntsuas, cov hluav taws xob tiv thaiv ntawm cov hlau ntshiab hlau rods tuaj yeem txo qis ntxiv, thiab lawv cov conductivity tuaj yeem txhim kho.