Lub cev muaj zog ntawm aluminium

Khoom siv
Lub peripheral electronic configuration ntawm txhuas atoms yog 3s ² 3p ¹, Nws feem ntau tshwm li ntxiv 3 Oxidation xeev nyob rau hauv cov tebchaw. Aluminium atom muaj qhov khoob 3d orbital, thiab tuaj yeem tsim ib qho chaw ruaj khov nrog kev sib koom tes tus lej ntawm 6 lossis 4 nrog tus khub electron pub. Yog hais tias ib tug txhuas atom poob ob 3s electrons thiab ib 3p electron ib txhij, nws generates ib tug trivalent txhuas ion (Al ³ Å); Yog hais tias ib tug 3s electron thiab ib 3p electron poob, ib tug divalent txhuas ion (Al) yog generated ² Å); Yog tias ib qho 3p electron ploj lawm, monovalent aluminium ions (Al ntxiv) raug tsim tawm, thiab qis valent aluminium ions feem ntau tsis ruaj khov ntawm qhov kub qis [6].
Lub lattice ntawm aluminium belongs rau lub ntsej muag centered cubic hom. Aluminium atoms (aluminium ions) nyob rau ntawm cov kab ntawm cov lattice thiab nyob rau hauv nruab nrab ntawm qhov chaw, uas yog sib npaug rau muaj 4 txhuas atoms nyob rau hauv txhua lub lattice.
Cov yam ntxwv ntawm lub cev
Aluminium yog lub teeb hlau nyiaj. Nws muaj extensibility. Cov khoom siv feem ntau ua rau hauv kab, pas nrig, cov ntawv, ntawv ci, hmoov, ribbons, thiab filaments. Melting point 66 0 degree . Kub taw tes 2327 degree. Tus txheeb ze ntom ntom yog 2.70, thiab qhov ntom ntawm txhuas kua yog 2.303 g / cm ³. Lub elastic modulus yog 70Gpa, thiab Poisson tus piv yog 0.33. Lub conductivity ntawm txhuas yog li ntawm 60 feem pua ​​ntawm cov tooj liab. Yog hais tias ntsuas los ntawm chav tsev loj, qhov conductivity ntawm txhuas tshaj qhov tooj liab, thiab nws feem ntau hloov tooj liab nyob rau hauv kev sib kis mus ntev. Nws yog dav siv rau nws lub teeb yuag, zoo conductivity thiab thermal conductivity, siab reflectivity, thiab oxidation kuj. Aluminium siv rau cov khoom siv hauv tsev niaj hnub feem ntau yog hu ua "qib steel" lossis "steel grade". Lub thermal expansion coefficient ntawm Al ntawm 25 degree (chav kub) yog 0.0000236mm / degree los yog 23.6ppm · k-1