Ntụnyere nke njirimara nke seramiiki silicon carbide na seramiiki alumina

Seramiki Sic abụghị naanị na ha nwere ezigbo ihe eji arụ ọrụ n'ime ụlọ, dịka ike ịgbagọ agbagọ, ezigbo nguzogide oxidation, ezigbo nguzogide corrosion, nguzogide iyi dị elu na obere ihe esemokwu, kamakwa ha nwere ihe eji arụ ọrụ kacha mma na oke okpomọkụ (ike, nguzogide creep, wdg) n'etiti ihe seramiki a ma ama. Ngbagọ agbagọ ọkụ, ngbagọ agbagọ na-anaghị agbanye, ihe eji agbagọ agbagọ na-ekpo ọkụ, ihe kachasị ukwuu nke silicon carbide bụ ike okpomọkụ dị elu, ihe seramiiki nkịtị na 1200 ~ 1400 degrees Celsius ga-ebelata nke ukwuu, ike ịgbagọ agbagọ silicon na 1400 degrees Celsius ka na-anọgide na-enwe na ọkwa dị elu nke 500 ~ 600MPa, yabụ okpomọkụ ọrụ nwere ike iru ogo Celsius 1600; udidi efere silicon carbide siri ike ma gbawaa agbagọ, ihe na-agbasa bụ obere, oyi na nguzogide ọkụ, ọ dịghị mfe ịgbanwe. Silicon carbide bụ nke kacha dị oke, yabụ akụkụ seramiiki ejiri silicon carbide mee bụ nke kachasị mfe.

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Alumina seramiiki bụ ụdị alumina (Al2O3) dị ka isi ihe dị na seramiiki ahụ, nke a na-eji na sekit ndị gbara ọkpụrụkpụ nke ihe nkiri jikọtara ọnụ. Seramiiki alumina nwere ezigbo ike, ike mekaniki na oke okpomọkụ. Ọ dị mkpa ịmara na ịsacha ultrasonic dị mkpa. Mgbochi iyi ya bụ ugboro 266 nke ígwè manganese na ugboro 171.5 nke ígwè chromium dị elu. Seramiiki alumina bụ ụdị ihe mkpuchi dị elu, nke a na-ejikarị eme mpempe akwụkwọ mkpuchi seramiiki, mgbanaka mkpuchi na akụkụ ndị ọzọ. Seramiiki alumina nwere ike iguzogide oke okpomọkụ ruo 1750℃ (ọdịnaya alumina karịrị 99%).

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Oge ozi: Febụwarị-14-2023
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