Aluminium Carbide Hmoov, Al4C3

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Aluminium Carbide Hmoov, Al4C3

Siv nyob rau hauv metallurgy li catalyst thiab methane ntau lawm.
Aluminium carbide feem ntau yog siv los ua cov khoom ntxiv rau lub zog ntawm peb cov khoom siv aluminium hauv paus (al-Si-ALC, al-AlTI-ALC). Tsis tas li ntawd, AlC yog qhov tseem ceeb ntxiv hauv kev ua cov hlau-aluminium kev lag luam thev naus laus zis.


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Cov mis mos molecular  Al4c3
CAS Code  1299-86-1
Nta  txho dub hmoov
Melting taw tes  2100'C
Tus txheeb ze ceev (dej = 1) 2. 36g / cm3
Kev Siv  rau metallurgy thiab catalyst, txhuas carbide tuaj yeem siv los ua cov cuab yeej siv ceev nrawm ua kom zoo

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Txhuas carbide
Siv tshuaj mis Al4C3
Molecular phaus 143.96 CAS
Cov tsos thiab cov khoom: muaj xim daj los yog greenish-grey muaju lossis hmoov, hygroscopic.
Melting point (℃): 2100
Tus txheeb ze ceev (dej = 1): 2.36
Ib kub npau npau (℃): 2200 (kho kom zoo)
Solubility: insoluble hauv acetone
daim ntawv thov
Siv nyob rau hauv metallurgy li catalyst thiab methane ntau lawm.
Aluminium carbide feem ntau yog siv los ua cov khoom ntxiv rau lub zog ntawm peb cov khoom siv aluminium hauv paus (al-Si-ALC, al-AlTI-ALC). Tsis tas li ntawd, AlC yog qhov tseem ceeb ntxiv hauv kev ua cov hlau-aluminium kev lag luam thev naus laus zis Nws yog siv rau kev txo cov hlau oxide hauv kev lag luam nws yog xim hlau, tshuaj lom neeg cov tshuaj tiv thaiv kev lag luam hauv kev lag luam chemical, thiab cov khoom lag luam siab heev xws li kub, txiav thiab pwm hauv kev lag luam ceramic. Raws li cov ionic compound, cov pa roj carbon atoms muaj nyob rau hauv C daim ntawv sib txawv hauv cov ntxaij ntoo qauv ntawm AlC. C muaj alkalinity muaj zog thiab tsim cov tshuaj methane los ntawm C + 4H → CH thaum lub sij hawm hydrolysis, yog li AlC kuj ACTS ua cov pa hluav taws xob ua pa thiab desiccant. Nyob rau tib lub sijhawm, rhombohedron ntawm
AlC yog lwm txoj hauv kev ua qauv ntawm AlC thiab AlC slices. Nws yog cov qauv tshwj xeeb no uas ua rau Al-ib-nanowires lub txias txias hluav taws xob emitter.

1) aluminium nitride hmoov yog npaj raws li cov txhuas carbide, suav nrog:
(a) tus nqi tsim nyog ntawm micron aluminium hmoov thiab micron carbon hmoov yog cov sib xyaw tsis sib xws, ua kom sov mus rau qhov ntsuas kub ua ntej hauv qhov chaw tsis haum, tuav rau lub sijhawm, thiab tom qab ntawd reacted los tsim aluminium carbide;
(b) Thaum tshav kub kub aluminium carbide rau qhov tau teev tseg hauv qhov kub thiab txias hauv ammonia roj lossis cov pa nitrogen thiab tuav nws rau ib ntus, thiab hnov ​​mob nrog ammonia roj lossis nitrogen roj los ua rau txhuas nitride nyob rau hauv qhov chaw sov siab. Los ntawm kev tsim tawm, aluminium nitride hmoov tuaj yeem npaj nyob rau ntawm qhov ntsuas kub tsawg, nrog siab purity, me me qhov loj me thiab teeb meem me me uas faib tawm, siab thermal conductivity thiab zoo heev thermal thiab mechanical zog, uas tuaj yeem siv dav hauv kev sib xyaw cov khoom siv substrate.
Ib qho txhuas carbide nanoribbon tau npaj. Lub crucible nrog aluminium-silicon alloy muab tso rau hauv qhov cub ua kom sov, lub qhov cub tawg tau kaw thiab lub cub tawg yog nqus rau 50Pa ~ 10-3Pa, tom qab ntawd cov roj av tiv thaiv tau ntim nrog argon, thiab qhov kub tau muab tso rau 700 ℃ ~ 1600 ℃ rau 1-20 teev, tom qab ntawd tus crucible yog lawm txias mus rau qhov kub thiab txias, thiab ntau cov xim daj aluminium carbide nanoribbons yog tsim nyob rau saum npoo ntawm cov alloy thiab sab hauv phab ntsa ntawm graphite crucible. Aluminium carbide nanoribons npaj los ntawm qhov tsim muaj yog nyias hauv cov tuab thiab muaj ob peb impurities; Qhov ntev ntawm cov aluminium carbide nanoribons yog ob peb millimeters.

Tus nqi ntawm kev loj hlob aluminium carbide nanoribbons yog qhov tsawg heev. Tsis muaj kev ua qias tuaj ib puag ncig, cov khoom siv npaj tau yooj yim

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