Ukumelana kwe-oxidation kwezakhi ze-ceramic zokucoca kabusha kanye nemvelo yayo yesicelo
Izakhi ze-Parcisication Ceramic ziyizinto eziphakeme zokusebenza okuphezulu embonini yanamuhla, futhi izakhiwo zazo ezihlukile zenyama nangamakhemikhali zilethe ushintsho lwezinguquko ezinkambeni eziningi. Phakathi kwazo, ukumelana kwe-oxidation kungenye yezimpawu ezivelele kakhulu zokunemba kwezakhi ze-ceramic, ezibaluleke kakhulu ezindaweni ezingejwayelekile.
Ukumelana ne-Oxidation kwezakhi ze-ceramic zokucophelela
Izinto zokwenziwa ngocingo, ezinjenge-alumina, i-silicon nitride, i-silicon carbide, njll., Zaziwa ngezakhiwo zazo ezinhle kakhulu ze-antioxidant. Lezi zinto zokwenziwa zingagcina izakhiwo zamakhemikhali ezizinzile ngaphansi kokushisa okuphezulu nendawo ephezulu ye-oxidation, futhi akulula ukuphendula ngo-oksijini, ngaleyo ndlela zigweme ukugcwala komoya, ukugqwala kanye nokuwohloka kokusebenza kwezinto ezibonakalayo. Lokhu kumelana ne-oxidation enhle kakhulu kungenxa yesakhiwo se-crystal esinzile namandla amakhemikhali amakhemikhali ngaphakathi kwezinto ze-ceramic, ezenza zikwazi ukugcina ukuqina isikhathi eside kanye nokwethembeka ezindaweni ezinokhahlo.
Imvelo yesicelo esibucayi
1. I-Aerospace
Ensimini ye-aerospace, ukumelana no-oxidation kwezakhi ze-ceramic ngokunemba kubaluleke kakhulu. Izinjini zezindiza kanye ne-spacecraft zidinga ukubekezelela amazinga okushisa aphezulu kakhulu namagesi axegatizitize ngendiza ephezulu. Izakhi ezinjengamakamelo okuhlanza, ama-nozzles kanye nama-turbines ezenziwe ngokunemba izinto zokwenza ubumbano kungagcina ukusebenza okuzinzile kumazinga okushisa aphezulu, ukuvikela ukusebenza okujwayelekile kanye nokuqina kwenjini kanye ne-spacecraft.
2 Umkhakha Wezamandla
Emkhakheni wamandla, ukumelana noxidation kwezakhi ze-ceramic kanye nakho kudlala indima ebalulekile. Isibonelo, emishini yokushisa ephezulu efana nama-turbines wegesi nama-boilers amalahle axoshwe, izakhi ezinjengezendlalelo zokufakwa kwezithelo ezishisayo nezihlungi ezenziwe ngezinto zokushisa eziphakeme, zivikele ukwakheka kwangaphakathi kwemishini futhi kuthuthukise ukusebenza kahle kwamandla. Ngaphezu kwalokho, emkhakheni wamandla wenuzi, ukucacisa izinto zokwenziwa kwe-ceramic nazo zisetshenziswa kabanzi ekufakweni kwe-thermal kanye nongqimba oluvikelayo lwe-reactors yenuzi ukuqinisekisa ukusetshenziswa okuphephile kwamandla enuzi.
3. Imboni yamakhemikhali
Embonini yamakhemikhali, ukusabela okuningi kwamakhemikhali nezinqubo kudinga ukwenziwa ekushiseni okuphezulu, ingcindezi ephezulu kanye nezindawo eziqinile ezilonakalisayo. Izakhi ze-ceramic ngokunemba, ngokumelana kwazo okuhle kwe-oxidation kanye nokumelana nokugqwala, kuyizinto ezibalulekile kulezi zindawo. Isibonelo, emishini yamakhemikhali enokugqwayiza okunamandla kwe-acid kanye ne-alkali, izingxenye ezinjengamapayipi, ama-valves namaphampu okwenziwe ngezinto zokwakha ubumba kungavimba ngempumelelo ukugqwala nokuvuza, ukuqinisekisa ukuphepha nokuqina kokukhiqizwa kwamakhemikhali.
ukugcina
Ngamafuphi, ukumelana ne-oxidation kokunemba kwezakhi ze-ceramic kungenye yezakhiwo zayo ezinhle kakhulu, ezidlala indima ebalulekile e-AeroSpace, Energy nasezimbonini zamakhemikhali. Ngokuthuthuka okuqhubekayo kwesayensi nobuchwepheshe kanye nokunwetshwa okuqhubekayo kwezicelo, izakhiwo ze-antioxidant zokunemba kwezakhi ze-ceramic zizoqhubeka nokukhathazeka futhi zithuthukiswe, ziletha izinkambu eziningi. Ngokuzayo, ukuthuthukiswa okuqhubekayo kwezobuchwepheshe zezinto ezibonakalayo kanye nobuchwepheshe bokulungiselela, sinesizathu sokukholelwa ukuthi izingxenye zokunemba ze-ceramic zizokhombisa ubuhle bazo obuhlukile nenani emikhakheni yazo eyingqayizivele.
Isikhathi sePosi: Aug-07-2024