Silicon Carbide recrystallized (RXSIC, ReSIC, RSIC, R-SIC). Ihe mmalite akụrụngwa bụ silicon carbide. Ọ dịghị ihe enyemaka densification. A na-ekpo ọkụ kọmpat akwụkwọ ndụ akwụkwọ ndụ ihe karịrị 2200ºC maka nkwado ikpeazụ. Ihe na-esi na ya pụta nwere ihe dịka 25% porosity, nke na-egbochi akụrụngwa ya; Otú ọ dị, ihe ahụ nwere ike ịdị ọcha nke ukwuu. Usoro a dị oke ọnụ ahịa.
Mmeghachi omume Bonded Silicon Carbide (RBSIC). Ngwa ngwa mmalite bụ silicon carbide gbakwunyere carbon. A na-eji silicon a wụrụ awụ banye n'ime akwụkwọ ndụ akwụkwọ ndụ n'elu 1450ºC yana mmeghachi omume: SiC + C + Si -> SiC. Microstructure n'ozuzu nwere ụfọdụ ego nke ngafe silicon, nke na-amachi ya elu okpomọkụ Njirimara na corrosion iguzogide. Obere mgbanwe akụkụ na-eme n'oge usoro; Otú ọ dị, oyi akwa silicon na-adịkarị n'elu akụkụ ikpeazụ. ZPC RBSiC nakweere teknụzụ dị elu, na-emepụta mkpuchi mkpuchi mkpuchi, efere, taịlị, mkpuchi cyclone, ihe mgbochi, akụkụ ndị na-adịghị ahụkebe, na iyi & corrosion eguzogide FGD nozzles, okpomọkụ Exchanger, ọkpọkọ, tubes, na na.
Nitride Bonded Silicon Carbide (NBSIC, NSIC). Akụrụngwa mmalite bụ silicon carbide tinyere silicon ntụ ntụ. A na-agbanye kọmpat akwụkwọ ndụ akwụkwọ ndụ na ikuku nitrogen ebe mmeghachi omume SiC + 3Si + 2N2 -> SiC + Si3N4 pụtara. Ihe ikpeazụ na-egosipụta obere mgbanwe n'oge nhazi. Ngwa ahụ na-egosipụta ọkwa porosity ụfọdụ (nke dịka 20%).
Direct Sintered Silicon Carbide (SSIC). Silicon carbide bụ akụrụngwa mmalite. Ihe enyemaka nkpuchi bụ boron gbakwunyere carbon, na njupụta na-apụta site na usoro mmeghachi omume steeti siri ike karịa 2200ºC. Njirimara ya dị elu na nguzogide corrosion dị elu n'ihi enweghị akụkụ nke abụọ nke iko na oke ọka.
Usoro Liquid Sintered Silicon Carbide (LSSIC). Silicon carbide bụ akụrụngwa mmalite. Ihe enyemaka nkpuchi bụ yttrium oxide gbakwunyere aluminum oxide. Densification na-apụta n'elu 2100ºC site na mmeghachi omume mmiri na-ebute akụkụ nke abụọ nke iko. Ngwongwo eji arụ ọrụ na-adịkarị elu karịa SSIC, mana njirimara okpomọkụ dị elu na nguzogide corrosion adịghị mma.
Silicon Carbide na-ekpo ọkụ (HPSIC). A na-eji ntụ ntụ silicon carbide mee ihe dị ka akụrụngwa mmalite. Ihe enyemaka nkpuchi na-abụkarị boron gbakwunyere carbon ma ọ bụ yttrium oxide gbakwunyere aluminum oxide. Densification na-apụta site na ntinye n'otu oge nke nrụgide igwe na ọnọdụ okpomọkụ n'ime oghere graphite nwụrụ. Ụdị ahụ bụ efere dị mfe. Enwere ike iji obere ihe enyemaka sntering mee ihe. A na-eji ihe eji arụ ọrụ nke ihe ndị na-ekpo ọkụ na-ekpo ọkụ mee ihe dị ka ntọala nke usoro ndị ọzọ na-atụnyere. Enwere ike gbanwee akụrụngwa eletrik site na mgbanwe na ihe enyemaka densification.
CVD Silicon Carbide (CVDSIC). A na-emepụta ihe a site na usoro ntinye mmiri mmiri (CVD) nke gụnyere mmeghachi omume: CH3SiCl3 -> SiC + 3HCl. A na-eme mmeghachi omume a n'okpuru ikuku H2 ebe a na-edobe SiC n'elu mkpụrụ graphite. Usoro a na-ebute ihe dị oke ọcha; Otú ọ dị, ọ bụ nanị efere dị mfe ka a pụrụ ime. Usoro ahụ dị oke ọnụ n'ihi oge mmeghachi omume dị nwayọọ.
Chemical Vapor Composite Silicon Carbide (CVCSiC). Usoro a na-amalite site na precursor graphite nwe nke arụnyere n'ụdị netwọk dị nso na steeti graphite. Usoro ntụgharị ahụ na-edobe akụkụ graphite gaa na mmeghachi omume steeti siri ike dị n'ime ọnọdụ iji mepụta polycrystalline, stoichiometrically ziri ezi SiC. Usoro a na-achịkwa nke ọma na-enye ohere ịmepụta atụmatụ mgbagwoju anya na akụkụ SiC kpamkpam nke nwere njirimara nnabata na ịdị ọcha dị elu. Usoro ntụgharị ahụ na-ebelata oge mmepụta nkịtị ma belata ọnụ ahịa karịa ụzọ ndị ọzọ.* Isi mmalite (ma e wezụga ebe ekwuru): Ceradyne Inc., Costa Mesa, Calif.
Oge nzipu: Jun-16-2018