Reaction sintering silicon carbide ke mokhoa oa ho lokisa lisebelisoa tsa ceramic tse sebetsang hantle. E arabela le ho hatella phofo ea silicon carbide le lik'hemik'hale tse ling tlas'a maemo a phahameng a mocheso ho hlahisa boima bo phahameng, boima bo phahameng, khanyetso e phahameng ea ho apara le lisebelisoa tse phahameng tsa ho thibela kutu.
1. Mokhoa oa ho itokisa. Mokhoa oa ho lokisa oa reactive sintering silicon carbide hangata o kenyelletsa mehato e 'meli: karabelo le sintering. Boemong ba karabelo, phofo ea silicon carbide e kopana le lik'hemik'hale tse ling ka mocheso o phahameng ho etsa metsoako e nang le lintlha tse tlaase tse qhibilihisang, tse kang alumina, boron nitride le calcium carbonate. Lik'hemik'hale tsena li ka sebetsa e le li-binders le li-fillers ho thusa ho eketsa bokhoni ba ho tlamahane le ho phalla ha silicon carbide powders ha ho ntse ho fokotsa li-pores le mefokolo ea thepa. Sebakeng sa sintering, sehlahisoa sa karabelo se chesoa ka mocheso o phahameng ho etsa thepa e teteaneng ea ceramic. Lintho tse kang mocheso, khatello le sepakapaka se sireletsang li hloka ho laoloa ka mokhoa oa sintering ho netefatsa hore thepa e na le ts'ebetso e ntle. Thepa e fumanoeng ea silicon carbide ceramic e na le litšobotsi tsa boima bo phahameng, matla a phahameng, khanyetso e phahameng ea kutu le khanyetso e phahameng ea ho roala.
2. Thepa. Reaction-sintered silicon carbide e na le thepa e ngata e ntle haholo, e etsang hore e sebelisoe haholo mafapheng a mangata. Taba ea pele, lisebelisoa tsa ceramic tsa silicon carbide li na le boima bo phahameng haholo ebile li ka khaola lisebelisoa tse thata joalo ka tšepe. Taba ea bobeli, lisebelisoa tsa silicon carbide ceramic li na le khanyetso e ntle ea ho roala 'me li ka sebelisoa nako e telele tlasa maemo a thata joalo ka mocheso o phahameng le khatello e phahameng. Ho feta moo, lisebelisoa tsa silicon carbide ceramic li na le khanyetso e phahameng ea kutu le botsitso ba mocheso o phahameng, 'me li ka sebelisoa nako e telele libakeng tse senyang le mocheso o phahameng.
3. Libaka tsa kopo. Reaction-sintered silicon carbide e sebelisoa mafapheng a mangata. Ka mohlala, indastering ea tlhahiso, lisebelisoa tsa silicon carbide ceramic li sebelisoa haholo ka li-abrasives, lisebelisoa tsa ho itšeha le likarolo tsa ho roala. Ho thatafala ha eona ho phahameng le ho hanyetsa ha eona ho etsa hore e be molemo bakeng sa ho seha, ho sila le ho sila
E loketse ho polishing le masimo a mang. Indastering ea lik'hemik'hale, lisebelisoa tsa silicon carbide ceramic li ka sebelisoa ho hlahisa lik'hemik'hale tse kang sulfuric acid le li-acids tse matla tse kang hydrofluoric acid ka lebaka la ho hanyetsa ha tsona ho matla le mocheso o phahameng oa botsitso. Lefapheng la sefofane le ts'ireletso, lisebelisoa tsa silicon carbide ceramic li ka sebelisoa ho etsa li-missile casings le lisebelisoa tsa tšireletso ea mocheso bakeng sa lifofane tse lebelo le phahameng. Ho phaella moo, lisebelisoa tsa silicon carbide ceramic li ka boela tsa sebelisoa tšimong ea biomedical ea manonyeletso a maiketsetso le lisebelisoa tsa ho buoa masapo, hobane li na le biocompatibility e ntle le ho hanyetsa ho apara.
Reaction sintering silicon carbide ke mokhoa oa ho lokisa lisebelisoa tsa ceramic tse sebetsang hantle. E arabela le ho hatella phofo ea silicon carbide le lik'hemik'hale tse ling tlas'a maemo a phahameng a mocheso ho hlahisa boima bo phahameng, boima bo phahameng, khanyetso e phahameng ea ho apara le lisebelisoa tse phahameng tsa ho thibela kutu. Lisebelisoa tsa silicon carbide ceramic li na le thepa e ntle, e kang boima bo phahameng, khanyetso e phahameng ea ho apara, khanyetso e phahameng ea kutu le botsitso ba mocheso o phahameng, kahoo e sebelisoa haholo likarolong tse ngata tse kang tlhahiso, indasteri ea lik'hemik'hale, libaka tsa sefofane le tšireletso le masimo a biomedical.
Nako ea poso: Jul-08-2023