Zotayidwa Carbide ufa, Al4C3

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Zotayidwa Carbide ufa, Al4C3

Amagwiritsidwa ntchito pazitsulo ngati chothandizira komanso kupanga methane.
Aluminiyamu carbide imagwiritsidwa ntchito ngati chowonjezera kuti chikhale cholimba pazinthu zitatu zoyambira (al-Si-ALC, al-AlTI-ALC). Kuphatikiza apo, AlC ndichofunikira pakampani yamaukadaulo azitsulo zamagetsi.


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Njira yamagulu  Al4c3
Code CAS  1299-86-1
Makhalidwe  ufa wakuda wakuda
Kusungunuka  2100'C
Kuchulukana kochepa (madzi = 1) 2. 36g / cm3
Ntchito  zitsulo ndi chothandizira, zotayidwa carbide itha kugwiritsidwa ntchito ngati chida chothamangitsa kwambiri

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Zotayidwa carbide
Njira yopangira mankhwala Al4C3
Kulemera kwa maselo 143.96 CAS
Maonekedwe ndi katundu: makhiristo achikasu kapena obiriwira kapena ufa, wosakanizika.
Malo osungunuka (℃): 2100
Kuchulukana kochepa (madzi = 1): 2.36
Malo otentha (℃): 2200 (kuwonongeka)
Kusungunuka: osasungunuka ndi acetone
ntchito
Amagwiritsidwa ntchito pazitsulo ngati chothandizira komanso kupanga methane.
Aluminiyamu carbide imagwiritsidwa ntchito ngati chowonjezera kuti chikhale cholimba pazinthu zitatu zoyambira (al-Si-ALC, al-AlTI-ALC). Kuphatikiza apo, AlC ndichofunikira pakampani yamaukadaulo azitsulo zamagetsi. Amagwiritsidwa ntchito pochepetsa okosijeni azitsulo m'makampani azitsulo, zopangira mankhwala zopangira mankhwala, komanso zida zapamwamba za ceramic monga kutentha, kudula ndi nkhungu mumsika wa ceramic. Monga cholumikizira cha ionic, ma atomu a kaboni amapezeka mumtundu wina wa C pamakina a AlC. C imakhala yolimba kwambiri ndipo imapanga methane kudzera C + 4H → CH panthawi yama hydrolysis, chifukwa chake AlC imathandizanso ngati jenereta ya methane ndi desiccant. Nthawi yomweyo, rhombohedron ya
AlC ndimapangidwe ena amitundu ya AlC ndi AlC. Ndi kapangidwe kameneka kamene kamapangitsa kuti AlC yoyimira mbali imodzi ikhale yotulutsa ma elekitironi ozizira.

1) aluminium nitride powder imakonzedwa kutengera aluminium carbide, kuphatikiza:
(a) kuchuluka koyenera kwa micron aluminium ufa ndi micron kaboni ufa amaphatikizana mofananamo, kutenthedwa mpaka kutentha komwe kumakonzedweratu mumlengalenga, wokhala kwakanthawi, kenako nkuyambitsa carbide ya aluminium;
(b) Kutentha carbide ya aluminiyamu mpaka kutentha komwe kumakonzedweratu mu mpweya wa ammonia kapena mpweya wa nayitrogeni ndikuigwira kwakanthawi, ndikuchita ndi ammonia gasi kapena nayitrogeni gasi kuti apange nitride ya aluminiyamu pamalo otentha kwambiri. Kudzera pakupangidwaku, aluminiyamu ya nitride ufa imatha kukonzekera kutentha pang'ono, ndi kuyeretsa kocheperako, kukula kwa tinthu tating'onoting'ono ndikufalitsa kukula kwa yunifolomu, kutentha kwambiri kwamatenthedwe komanso mawonekedwe abwino kwambiri amagetsi, omwe amatha kugwiritsidwa ntchito kwambiri pamagawo ophatikizika zipangizo gawo lapansi.
Aluminium carbide nanoribbon idakonzedwa. Mbiya yokhala ndi aluminium-silicon alloy imayikidwa m'ng'anjo, chitseko cha ng'anjo chatsekedwa ndipo ng'anjo yatulutsidwa ku 50Pa ~ 10-3Pa, ndiye kuti mpweya woteteza umadzaza ndi argon, ndipo kutentha kumatenthedwa mpaka 700 ℃ ~ 1600 ℃ kwa maola 1-20, ndiye mbiya ndi mwachilengedwe utakhazikika kutentha yachibadwa, ndi ambiri yellow zotayidwa carbide nanoribboni kwaiye padziko aloyi ndi khoma lamkati la mbiya graphite. Ma aluminium carbide nanoribons omwe adapangidwa ndi kutulukaku ndi ochepera makulidwe ndipo alibe zodetsa zochepa; Kutalika kwa zotayidwa carbide nanoribons ndi mamilimita angapo.

Mtengo wokula wa ma nanoriboni a aluminiyamu ndiotsika kwambiri. Palibe kuipitsa chilengedwe, zida zosavuta kukonzekera.

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