Q1: Vim li cas aluminium lub ntsej muag -} Chaw Sau Npe (FCC) kev lag luam tseem ceeb?
Aluminium's FCC Atomic kev tswj hwm ua rau tshwj xeeb muaj qhov muaj nyob ntawm chav sov. Tus qauv qauv crystal no muaj 12 txoj kev ywj siab ntawm cov tshuab ywj pheej, yooj yim cov tshuaj tiv thaiv yas yam tsis muaj pob txha. Cov tawv nqaij zoo nkauj ua rau muaj cov khoom siv tshuab hluav taws xob isotropic cov khoom siv hauv cov khoom siv tau. FCC Ruaj Khwv Tiv Thaiv Nyuaj Siab Tshaj txawm tias ntawm Cryogenic Qhov Kub (-200 Qib). Cov yam ntxwv no ua aluminium zoo tagnrho rau cov ntawv thov sib sib zog nqus li haus cov kaus poom thiab cov canels tsheb.
Q2: Yuav ua li cas cov txhuas lub tshuab hluav taws xob daws teeb meem cuam tshuam nws cov tshuaj coj cwj pwm?
Nrog Electron Configuration [NE] 3S²3p¹, Aluminium tau txais kev pub dawb peb txoj kev lag luam tsim hluav taws xob los ua ruaj khov+3 sua teb. Lub zog ua haujlwm siab no (577 KJ / Mol / Mol) tsav ionic sib koom tes nrog oxygen nrog oxygen, tsim ib txheej {} kho oxide txheej (al₂o₃). Cov amphoteric qhov kev tawm tsam nrog cov acids thiab hauv paus. Alloy cov ntsiab lus xws li cov hlau nplaum hloov hluav taws xob ceev los txhim kho corrosion tsis kam. Cov khoom siv no siv nyob rau hauv ntau qhov chaw ntawm chav ua noj kom muaj tshuaj tso tsheb hlau luam.
Q3: Dab tsi ua rau pom qhov xwm txheej txiav txim siab txhuas lub 660℃melting point?
Lub ntsiab lus melting sawv cev rau lub zog yuav tsum tau kov yeej cov hlau tawv hlau ntawm cov atoms. Tus nqi sib txuas tsawg dua piv rau kev hloov pauv ntawm cov hlau ua kom muaj zog -}}}}} TSHUAJ TAM SIM NO. Kev tsis sib haum xws li cov hlau tuaj yeem ua rau kub npau taws los ntawm kev cuam tshuam latture li niaj hnub no. Alloying cov ntsiab lus tsim cov kev daws teeb meem tau hloov kho cov ntsiab lus / solidus cov ntsiab lus. Qhov kev coj ua thermal no tso cai rau cov duab sib xyaw ua ke thaum txo cov zog siv hluav taws xob los ntawm 40% piv rau cov tooj liab- raws li alloys.
Q4: Vim li cas aluminium lub zog nthuav tawm coeffanic (23.1 μm / m ·) qhov tseem ceeb rau engineering?
Cov coefficievic cuam tshuam qhov seem ruaj khov hauv qhov kub -} kev siv sib txawv. Cov kev nthuav dav muaj kev sib txawv yuav tsum muaj nyiaj thaum koom nrog txhuas mus rau hlau (12 μm / MARCE). Thermal caij tsheb kauj vab nce siab ua nws haum rau kev hloov cua sov thiab cov cav. Kev tswj cov alloys zoo li alsi12 tau tsim rau kev ntim khoom hluav taws xob. Niaj hnub nimno Poje Simulations prinisely qauv nthuav kev cuam tshuam hauv ntau {{}} cov khoom sib dhos.
Q5: Yuav ua li cas txhuas kev sib npaug hluav taws xob conduction thiab kev txuag hluav taws xob?
Ntawm 35 ms / m kev ua haujlwm (61% IRS), txhuas muab 50% hnyav txuag tooj liab ntawm kev sib txig sib luag. Qhov no ua rau cov khoom sib kis sib dua cov kab thiab cov tsheb laij teb tsheb. Oxide kev tsim tsim tau ultrasonic vuam lossis txuas tshwj xeeb. Alloys tshiab zoo li 1370 ua tiav 62% IACs nrog kev txhim kho creep kam. Aluminium busbars tam sim no dominate ain roj teeb thiab cov ntaub ntawv chaw faib hluav taws xob.
