Ntụle nke akụrụngwa nke seramiki silicon carbide na seramiki alumina

Sic ceramics ọ bụghị naanị nwere ihe ndị dị mma na-arụ ọrụ na ụlọ okpomọkụ, dị ka ike na-ehulata dị elu, nguzogide oxidation dị mma, nguzogide corrosion dị mma, nkwụsi ike dị elu na ọnụ ọgụgụ dị ala, ma nweekwa ihe ndị kachasị mma n'ibu na okpomọkụ dị elu (ike, nguzogide na-akpụ akpụ). wdg) n'etiti ihe seramiiki a ma ama. Ịpịpị ọkụ na-ekpo ọkụ, nke na-enweghị ịpị, ihe na-ekpo ọkụ na-ekpo ọkụ nke isostatic, ihe kachasị mma nke silicon carbide bụ ike okpomọkụ dị elu, ihe seramiiki nkịtị na 1200 ~ 1400 degrees Celsius ga-ebelata nke ukwuu, na silicon carbide na 1400 degrees Celsius na-ehulata ike. ka na-edobe na ọkwa dị elu nke 500 ~ 600MPa, ya mere okpomọkụ na-arụ ọrụ nwere ike iru 1600 degrees Celsius; Silicon carbide efere udidi siri ike na kenkuwa, mgbasawanye ọnụọgụ bụ obere, oyi na-ekpo ọkụ na-eguzogide, adịghị mfe deformation. Silicon carbide bụ nke kacha nta, yabụ akụkụ seramiiki nke silicon carbide bụ nke kacha dị mfe.

Alumina seramiiki bụ ụdị alumina (Al2O3) dị ka isi ahụ nke ihe seramiiki, nke a na-eji na sekit agbakwunyere ihe nkiri siri ike. Alumina seramiiki nwere ezigbo conductivity, arụ ọrụ ike na elu okpomọkụ iguzogide. Ekwesiri iburu n'uche na a choro ịsacha ultrasonic. Nguzogide iyi ya bụ nke ígwè manganese okpukpu 266 na okpukpu 171.5 karịa nke ígwè chromium dị elu. Alumina seramiiki bụ ụdị ihe mkpuchi mkpuchi dị elu, nke a na-ejikarị eme mpempe akwụkwọ mkpuchi seramiiki, mgbanaka mkpuchi na akụkụ ndị ọzọ. Alumina seramiiki nwere ike idi elu okpomọkụ ruo 1750 ℃ ​​(alumina ọdịnaya karịa 99%).