Silicon carbide (SiC) seramiiki ntụ ntụnwere uru nke ike okpomọkụ dị elu, ezigbo nkwụsị nke oxidation, akwa mkpuchi na-eyi na nkwụsi ike nke okpomọkụ, obere mgbasawanye ọkụ ọkụ, nnukwu okpomọkụ conductivity, ezigbo nkwụsi ike nke kemịkal, wdg. ngwaọrụ, patches na-eguzogide okpomọkụ, ihe injin ụgbọ elu, ụgbọ mmiri mmeghachi omume kemịkalụ, ọkpọkọ ọkpọkọ na ihe ndị ọzọ na-arụ ọrụ n'okpuru ọnọdụ siri ike, yana ihe injinia dị elu na-ejikarị.Ọ bụghị naanị na ọ na-arụ ọrụ dị mkpa na mpaghara teknụzụ dị elu dị n'okpuru mmepe (dịka injin seramiiki, ụgbọ elu, wdg), mana nwekwara nnukwu ahịa na mpaghara ngwa ka a ga-emepụta na ike ugbu a, igwe igwe, igwe, ihe ụlọ. , ụlọ ọrụ kemịkalụ na mpaghara ndị ọzọ.

Usoro nkwadebe nkesilicon carbide ntụ ntụenwere ike kewaa ụzọ atọ: usoro siri ike, usoro mmiri mmiri na usoro gas.

1. Usoro siri ike

Usoro nke siri ike na-agụnye usoro mbelata carbothermal na usoro mmeghachi omume silicon carbon kpọmkwem.Ụzọ mbelata carbothermal tinyekwara usoro Acheson, usoro ọkụ kwụ ọtọ na usoro ntụgharị okpomọkụ dị elu.Silicon carbide ntụ ntụA na-akwadebe nkwadebe na mbụ site na usoro Acheson, na-eji coke iji belata silicon dioxide na okpomọkụ dị elu (ihe dịka 2400 ℃), mana ntụ ntụ nke usoro a nwetara nwere nnukwu uru (> 1mm), na-eri ike dị ukwuu, na usoro a bụ. mgbagwoju anya.Na 1980s, ngwá ọrụ ọhụrụ maka ịmepụta β-SiC ntụ ntụ, dị ka ọkụ ọkụ kwụ ọtọ na ihe ntụgharị okpomọkụ dị elu, pụtara.Dị ka polymerization dị irè na pụrụ iche n'etiti ngwa ndakwa nri na kemịkalụ kemịkalụ na ihe siri ike ji nwayọọ nwayọọ kọwaa, nkà na ụzụ nke ịmepụta sic ntụ ntụ site na ikpo ọkụ microwave na-esiwanye ike.Usoro mmeghachi omume sịlịkọn carbon kpọmkwem gụnyekwara njikọ oke okpomọkụ nke na-agbasa onwe ya (SHS) na usoro nhazi igwe.Usoro nchịkọta Mbelata SHS na-eji mmeghachi omume exothermic dị n'etiti SiO2 na Mg mejupụta maka enweghị okpomọkụ.Nkesilicon carbide ntụ ntụenwetara site na usoro a nwere nnukwu ịdị ọcha na obere urughuru nha, mana Mg dị na ngwaahịa ahụ kwesịrị iwepụ ya site na usoro ndị na-esote dị ka pickling.

2 usoro mmiri mmiri

Usoro mmiri mmiri na-agụnye usoro sol-gel na usoro ire ere ọkụ polymer.Usoro Sol-gel bụ usoro ịkwadebe gel nwere Si na C site na usoro sol-gel kwesịrị ekwesị, wee pyrolysis na mbelata carbothermal okpomọkụ dị elu iji nweta silicon carbide.Igwe okpomọkụ dị elu nke polymer organic bụ nkà na ụzụ dị irè maka nkwadebe nke silicon carbide: otu bụ ikpo ọkụ gel polysiloxane, mmeghachi omume decomposition na-ahapụ obere monomers, na n'ikpeazụ na-etolite SiO2 na C, na mgbe ahụ site na carbon Mbelata mmeghachi omume na-emepụta SiC ntụ ntụ;Nke ọzọ bụ ikpo ọkụ polysilane ma ọ bụ polycarbosilane iji hapụ obere monomers ka ọ bụrụ ọkpụkpụ, n'ikpeazụkwa ga-etolite.silicon carbide ntụ ntụ.

3 Usoro nke gas

Ka ọ dị ugbu a, njikọ nke gas na-aga n'ihusilicon carbideseramiiki ultrafine ntụ ntụ na-ejikarị ntinye nke gas (CVD), Plasma Induced CVD, Laser Induced CVD na teknụzụ ndị ọzọ iji mebie ihe ndị dị ndụ na oke okpomọkụ.The nwetara ntụ ntụ nwere uru nke elu ịdị ọcha, obere urughuru size, obere urughuru agglomeration na mfe akara nke components.Ọ bụ usoro dị oke elu ugbu a, ma na ọnụ ahịa dị elu na obere mkpụrụ, ọ dịghị mfe iji nweta oke mmepụta ihe, ọ dịkwa mma maka ịmepụta ihe ụlọ nyocha na ngwaahịa ndị nwere ihe pụrụ iche chọrọ.

Ugbu a, ndịsilicon carbide ntụ ntụeji bụ tumadi submicron ma ọ bụ ọbụna nano larịị ntụ ntụ, n'ihi na ntụ ntụ urughuru size bụ obere, elu elu ọrụ, ya mere, isi nsogbu bụ na ntụ ntụ dị mfe na-emepụta agglomeration, ọ dị mkpa iji gbanwee elu nke ntụ ntụ iji gbochie ma ọ bụ gbochie. agglomeration nke abụọ nke ntụ ntụ.Ka ọ dị ugbu a, ụzọ nke mgbasa nke SiC ntụ ntụ na-agụnye ụdị ndị a: mgbanwe elu ike dị elu, ịsacha, ọgwụgwọ nke ntụ ntụ, mgbanwe mkpuchi inorganic, mgbanwe mkpuchi organic.