Puas yog aluminium ua hluav taws xob?
Aluminium yog ib qho hlau uas muaj ntau nyob hauv qhov xwm txheej. Nws yog ib qho khoom siv zoo rau kev siv hauv kev lag luam thiab ib hom khoom siv hlau uas muaj hluav taws xob zoo thiab thermal conductivity. Tib lub sijhawm, aluminium kuj yog cov hlau uas tuaj yeem ua hluav taws xob. Aluminium tuaj yeem ua hluav taws xob vim tias muaj ntau cov hluav taws xob dawb hauv nws. Cov tshuab hluav taws xob tsis pub dhau tas li ua cov lus tsa suab tsis zoo nyob hauv cov hlau siv lead. Thaum lawv raug cuam tshuam los ntawm ib qho hluav taws xob sab nraud, lawv yuav tsiv mus rau hauv ib qho kev coj ua hauv qhov rov qab ntawm lub tshuab hluav taws xob, yog li sib sau hluav taws xob hluav taws xob.
Aluminium Ua Hluav Taws Xob?
Lub hauv paus ntsiab lus yog dab tsi ntawm txhuas ntawv ci Conduction?
Lub hauv paus ntsiab lus ntawm txhuas kev sib haum yog tsuas yog raws cov qauv hluav taws xob ntawm nws cov atoms thiab cov yam ntxwv ntawm cov hlau tawv. Muaj tsib yog vim li cas vim li txhuas tuaj yeem ua hluav taws xob.
1. Lub hav zoov ntawm dawb tshuab hluav taws xob
Aluminium atoms muaj peb lub peev hluav taws xob hauv lawv txheej txheej outermost. Hauv hlau muaju, Cov khoom siv hluav taws xob tseem ceeb no tsis yog tsau rau ib qho atom, tab sis tuaj yeem txav mus rau thoob plaws cov hlau siv lead ua kom tsim lub npe hu ua “Hiavtxwv Hluav Taws Xob”. Cov hluav taws xob tsiv hluav taws kub tsiv hluav taws xob yog cov laj thawj rau kev ua haujlwm ntawm cov hlau.
2. Nws yog xim hlau khi:
Aluminium atoms tau khi ua ke los ntawm nws yog xim hlau. Metallic bonds are a special type of chemical bond in which positive ions formed by metal atoms are arranged in a sea of free electrons. Cov hluav taws xob hluav taws xob dawb txav mus thoob plaws lub qauv muaj lead ua, ua cov hlau ib tug neeg ua haujlwm zoo ntawm hluav taws xob.
3. Electron ntws thiab tam sim no
Thaum muaj hluav taws xob tau thov rau ob qhov kawg ntawm tus thawj coj txhuas, Cov hluav taws xob dawb yuav txav mus rau hauv qhov kev coj ua raws li kev txiav txim ntawm hluav taws xob teb. Qhov kev ntsuas hluav taws xob no txav cov ntaub ntawv hluav taws xob tam sim no. Yog li ntawd, Aluminium yog muaj peev xwm ua hluav taws xob.
4. Lattice Tus Qauv:
Cov qauv siv lead ua ntawm txhuas yog lub ntsej muag ntsej muag (FCC) lub tsev, uas tso cai rau cov hluav taws xob kom ntws dawb rau hauv lub ntxaij, Li no txoj kev txhim kho kev coj zoo.
5. Resiveivity:
Cov resistivity ntawm txhuas yog tsawg, about 2.65×10^-8 Ω·m, uas yog me ntsis siab dua tooj liab (about 1.68×10^-8 Ω·m), Tab sis nws tseem yog cov khoom siv tau zoo. Qhov no tsis muaj resialivity txhais tau hais tias electrons yuav dhau los ntawm txhuas cov neeg coj tau yooj yim.