Aluminium yog cov khoom siv tshuaj. Nws cov cim tshuaj yog Al, thiab nws tus lej atomic yog 13. Cov ntsiab lus ntawm txhuas nyob rau hauv lub ntiaj teb crust yog thib peb tom qab cov pa oxygen thiab silicon, thiab yog cov khoom siv hlau ntau tshaj plaws hauv lub ntiaj teb crust. Ntawm lawv, cov hlau ntau yog thib ob tsuas yog hlau, uas yog qhov thib ob loj tshaj plaws hlau ntau yam. Thaum kawg ntawm lub xyoo pua 19th, aluminium tau dhau los ua cov hlau sib tw rau kev siv engineering thiab tau nrov. Txoj kev loj hlob ntawm peb txoj kev lag luam tseem ceeb ntawm aviation, kev tsim kho thiab tsheb yuav tsum muaj cov khoom siv nrog cov khoom tshwj xeeb ntawm txhuas thiab nws cov alloys, uas yog cov txiaj ntsig zoo rau kev tsim khoom thiab kev siv ntawm hom tshiab ntawm txhuas hlau. Aluminium yog siv rau ntau yam kev siv.
Ntshiab aluminium yog mos heev, muaj zog tsawg, thiab muaj ductility zoo. Nws tuaj yeem kos rau hauv cov filaments ntev thiab dov rau hauv cov ntawv ci, uas yog siv rau hauv ntau cov xov hlau, cables, xov tooj cua kev lag luam, thiab kev lag luam ntim khoom. Nws muaj li ntawm ob feem peb ntawm cov conductivity ntawm tooj liab, tab sis vim nws qhov ceev tsuas yog ib feem peb ntawm tooj liab, txhuas muaj txog cov conductivity ntawm tooj liab piv rau txhuas thiab tooj liab hlau ntawm vaj huam sib luag thiab ntev. Multiply, tus nqi qis dua tooj liab.
Cov khoom siv txhuas yog cov ntsiab lus dav dav rau cov khoom siv niaj hnub thiab cov khoom lag luam uas ua los ntawm txhuas alloy ua cov khoom siv tseem ceeb.
Aluminium alloy yog ib lo lus dav dav rau aluminium-raws li alloys. Lub ntsiab alloying ntsiab yog tooj liab, silicon, magnesium, zinc, thiab manganese. Qhov thib ob alloying ntsiab yog npib tsib xee, hlau, titanium, chromium, lithium, thiab lwm yam. Aluminium alloy muaj tsawg ntom, tab sis kuj muaj zog, ze rau los yog ntau tshaj high-zoo hlau. Nws muaj plasticity zoo thiab tuaj yeem ua tiav rau hauv ntau yam profiles. Nws muaj zoo heev hluav taws xob conductivity, thermal conductivity thiab corrosion kuj. Nws yog dav siv nyob rau hauv kev lag luam, thiab nws kev siv yog thib ob tsuas yog steel.
