Kugena 5% kugeza 10% (agace kinshi) Al2O3 mugice cya matrix igice cy itanura rya carbone / grafite (amatafari ya karubone) bitezimbere cyane kwangirika kwangirika kwicyuma gishongeshejwe kandi ni ugukoresha amatafari ya karuboni ya aluminium muri sisitemu yo gukora ibyuma. Icya kabiri, amatafari ya karuboni ya aluminiyumu nayo akoreshwa mugutegura icyuma gishongeshejwe no gukanda.
Amatafari ya karubone ya aluminiyumu yo gushiramo ibyuma
Amatafari ya aluminium silicon karbide akoreshwa cyane mubikoresho byo gutwara ibyuma bishongeshejwe nkibigega bishongeshejwe. Nyamara, iyo ubu bwoko bwibikoresho byangiritse bikoreshwa mubigega binini bishongeshejwe byuma hamwe no kuvanga ibyuma, kandi bigahura nubushyuhe bukabije nubukonje, bikunda gucika, biganisha kumashanyarazi. Byongeye kandi, kubera ko amatafari ya Al2O3-SiC-C akoreshwa mu bigega binini bishyushye hamwe no kuvanga ibyuma akenshi aba afite karubone igera kuri 15% hamwe n’ubushyuhe bw’umuriro bugera kuri 17 ~ 21W / (m · K) (800 ℃), ngaho ni kugabanuka Ubushyuhe bwicyuma gishongeshejwe nikibazo cyo guhindura amabati yicyuma kinini cyashongeshejwe no kuvanga imodoka. Kurwanya ni ukugera ku bushyuhe buke bwo gukuraho SiC, igice cyogukoresha cyane ubushyuhe, mugihe ugabanya ibishushanyo mbonera no gutunganya igishushanyo.
Binyuze mu bushakashatsi bwibanze, hanzuwe ko:
. Muri iki gihe, ubushyuhe bwumuriro λ bwamatafari ya karuboni ya aluminiyumu burashobora kubarwa hafi na formula (1)
Muri formula, λa nubushyuhe bwumuriro wa Al2O3; Vc ni agace k'ibice bya grafite. Ibi birerekana ko ubushyuhe bwumuriro bwamatafari ya karubone ya aluminiyumu ntaho bihuriye nubushyuhe bwumuriro wa grafite.
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Ibi birerekana ko karubone nkeya Amatafari ya karubone ya aluminiyumu arashobora guhuza nuburyo imikorere yikigega kinini gishyushye hamwe n’imodoka ivanga ibyuma muri sisitemu yo gukora ibyuma.
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Igihe cyo kohereza: Gashyantare-27-2024
