Ihe na-eme ka silicon carbide poselin na-emeghachi omume nwere ike mkpakọ dị mma na ọnọdụ okpomọkụ, okpomọkụ na-eguzogide ikuku oxidation, ezigbo mkpuchi mkpuchi, ezigbo okpomọkụ na-eguzogide, obere ọnụọgụ nke mgbasawanye linear, elu okpomọkụ nnyefe ọnụọgụ, elu siri ike, okpomọkụ na-eguzogide na mbibi, ọkụ mgbochi na ndị ọzọ elu-edu àgwà. A na-ejikarị ụgbọ ala, igwe akpaaka, nchekwa gburugburu ebe obibi, injinia ikuku, ngwaọrụ eletrọnịkị ozi, ike ike na mpaghara ndị ọzọ, abụrụla seramiki nhazi nke dị ọnụ ahịa na enweghị ike dochie anya n'ọtụtụ ụlọ ọrụ mmepụta ihe.
A maara sintering enweghị nrụgide dị ka usoro ịgbatị SiC na-ekwe nkwa. Maka igwe nkedo dị iche iche na-aga n'ihu, enwere ike kewaa sintering na-enweghị pịa n'ime usoro nhazi siri ike na nhazi usoro mmiri mmiri dị elu. Site n'ịgbakwunye B na C kwesịrị ekwesị (ọdịnaya oxygen na-erughị 2%) ọnụ na ezigbo Beta SiC ntụ ntụ, S. Proehazka na-agbanye n'ime ahụ SIC calcined na njupụta ikwu karịa 98% na 2020, yana Al2O3 na Y2O3 dị ka ihe mgbakwunye. Calcined 0.5m-SiC n'okpuru 1850-1950 (otu akụkụ na ntakịrị SiO2), nkwubi okwu bụ na njupụta nke SiC poselin karịrị 95% nke isi theoretical njupụta, ọka size bụ obere, na nkezi size bụ nnukwu, nke bụ 1.5μm.
silicon carbide reactive sintering na-ezo aka dum usoro nke na-egosipụta porous Ọdịdị billet na mmiri mmiri na-adọ ma ọ bụ elu arụmọrụ mmiri mmiri na-arụ ọrụ, na-eme ka mma nke billet, ibelata ikuku oghere, na calcining emecha ngwaahịa na ụfọdụ ike na akụkụ ziri ezi. A na-agwakọta ntụ ntụ Plutonium-sic na graphite dị elu n'otu akụkụ wee kpoo ọkụ ruo ihe dịka 1650 iji mepụta ẹmbrayo ntutu. N'otu oge ahụ, ọ na-abanye ma ọ bụ banye n'ime ígwè site na mmiri mmiri mmiri Si, na-egosipụta na silicon carbide na-emepụta plutonium-sic, na fuses na ndị dị plutonium-sic particles. Mgbe nbanye Si n'ime, mmeghachi omume sintered ahu nwere njuju nke ikwu njupụta na enweghị ngwugwu nwere ike nweta. Tụnyere ndị ọzọ sintering ụzọ, na usoro nke elu njupụta mmeghachi omume sintering size mgbanwe dịtụ obere, nwere ike ịmepụta ziri ezi size nke ngwaahịa, ma e nwere ọtụtụ SiC na calcined ahu, elu okpomọkụ e ji mara mmeghachi omume sintered SiC poselin ga-aka njọ. ceramik SiC na-abụghị nrụgide, seramiiki SiC na-ekpo ọkụ isostatic calcined na seramiiki SiC siri ike nwere njirimara dị iche iche.
Ndị na-emepụta silicon carbide na-emeghachi omume: Dịka ọmụmaatụ, SiC poselin n'ogo nke njupụta ikwu njupụta na ike na-ehulata, ịpị ọkụ na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ na-adịwanye njọ, na reactive sintering SiC dị ntakịrị. N'otu oge ahụ, njirimara anụ ahụ nke SiC poselin na-agbanwe site na mgbanwe nke mgbanwe calcination. The na-abụghị nrụgide sintering, na-ekpo ọkụ press sintering na mmeghachi omume sintering nke SiC poselin nwere ezigbo alkaline eguzogide na acid iguzogide, ma mmeghachi omume sintered SiC porcelain nwere adịghị ike iguzogide HF na ndị ọzọ siri ike acid corrosion. Mgbe ambient okpomọkụ bụ ihe na-erughị 900, na-ehulata ike nke ọtụtụ SiC poselin bụ budata elu karịa nke elu okpomọkụ sintered poselin, na ehulata ike nke reactive sintered SiC poselin tụlee sharply mgbe ọ gafere 1400. (Nke a na-eme site na mberede dobe na ekwe ike nke a ụfọdụ ego nke laminated ozu n'ofe a okpomọkụ nke aru oyi n'ahụ ceram). sintered na-enweghị nrụgide calcination na n'okpuru na-ekpo ọkụ mgbe niile static mgbali bụ tumadi emetụta ụdị nke nwekwara.
Oge nzipu: Nov-07-2023