Ukumelana ne-oxidation yezingxenye ze-ceramic ezinembayo kanye nemvelo yayo yokusetshenziswa
Izingxenye ze-Ceramic eziqondile ziyizinto ezisebenza kahle kakhulu embonini yesimanje, futhi izakhiwo zazo eziyingqayizivele zomzimba namakhemikhali zilethe izinguquko eziguquguqukayo emikhakheni eminingi. Phakathi kwazo, ukumelana ne-oxidation kungenye yezici ezivelele kakhulu zezingxenye ze-ceramic zokunemba, ezibaluleke kakhulu ezindaweni ezimbi kakhulu.
Ukumelana ne-oxidation yezingxenye ze-ceramic ezinembayo
Izinto ze-ceramic ezinembile, njenge-alumina, i-silicon nitride, i-silicon carbide, njll., zaziwa ngezakhiwo zazo ezinhle kakhulu ze-antioxidant. Lezi zinto zingakwazi ukugcina izakhiwo zamakhemikhali ezizinzile ngaphansi kwezinga lokushisa eliphezulu kanye nemvelo ephezulu ye-oxidation, futhi akulula ukusabela nge-oxygen, ngaleyo ndlela igweme i-oxidation, ukugqwala kanye nokuwohloka kokusebenza kwezinto. Lokhu kumelana okuhle kakhulu kwe-oxidation kubangelwa ikakhulukazi isakhiwo se-crystal esizinzile kanye namandla ezibopho zamakhemikhali ngaphakathi kwempahla ye-ceramic, okwenza ikwazi ukugcina ukuzinza nokuthembeka kwesikhathi eside ezindaweni ezinokhahlo.
Imvelo yohlelo lokusebenza ebalulekile
1. Umkhathi
Emkhakheni we-aerospace, ukumelana ne-oxidation kwezingxenye ze-ceramic ezinembayo kubaluleke kakhulu. Izinjini zezindiza nemikhumbi-mkhathi zidinga ukumelana namazinga okushisa aphakeme kakhulu kanye namagesi ane-oxidizing phakathi nendiza enesivinini esikhulu. Izingxenye ezinjengamakamelo omlilo, ama-nozzles nama-turbines ezenziwe ngezinto zobumba ezinembayo zingagcina ukusebenza okuzinzile emazingeni okushisa aphakeme, zivimbele ngempumelelo i-oxidation nokugqwala, futhi ziqinisekise ukusebenza okuvamile kwenjini ne-spacecraft.
2. Umkhakha wezamandla
Emkhakheni wamandla, ukumelana ne-oxidation kwezingxenye ze-ceramic ezinembayo nakho kudlala indima ebalulekile. Isibonelo, kumishini yokushisa ephezulu njengama-turbine egesi kanye nama-boilers amalahle, izingxenye ezifana nezingqimba zokushisa ezishisayo nezihlungi ezenziwe ngezinto ze-ceramic zingamelana nokuguguleka kwentuthu yokushisa ephezulu, zivikele isakhiwo sangaphakathi semishini futhi zithuthukise ukusebenza kahle kwamandla. Ukwengeza, emkhakheni wamandla enuzi, izinto ze-ceramic ezinembayo nazo zisetshenziswa kabanzi ekwakhiweni kokushisa okushisayo kanye nongqimba oluvikelayo lwama-reactors enuzi ukuze kuqinisekiswe ukusetshenziswa okuphephile kwamandla enuzi.
3. Imboni yamakhemikhali
Embonini yamakhemikhali, ukusabela kwamakhemikhali amaningi kanye nezinqubo zidinga ukwenziwa ekushiseni okuphezulu, ukucindezela okukhulu kanye nezindawo ezinamandla ezigqwalayo. Izingxenye ze-ceramic ezinembile, ezinokumelana kwazo ne-oxidation okuhle kakhulu nokumelana nokugqwala, ziyizinto ezibalulekile kulezi zindawo. Isibonelo, emishinini yamakhemikhali ene-asidi enzima kanye nokugqwala kwe-alkali, izingxenye ezinjengamapayipi, ama-valve namaphampu ezenziwe ngezinto zobumba zingavimbela ngempumelelo ukugqwala nokuvuza, ziqinisekise ukuphepha nokuzinza kokukhiqizwa kwamakhemikhali.
isiphetho
Kafushane, ukumelana ne-oxidation kwezingxenye ze-ceramic ngokunemba kungenye yezakhiwo zayo eziningi ezinhle kakhulu, ezidlala indima ebalulekile ezimbonini ze-aerospace, amandla kanye namakhemikhali. Ngokuqhubeka okuqhubekayo kwesayensi nobuchwepheshe kanye nokwanda okuqhubekayo kwezinhlelo zokusebenza, izakhiwo ze-antioxidant zezingxenye ze-ceramic ezinembayo zizoqhubeka nokukhathazeka futhi zithuthukiswe, zilethe emisha nenqubekela phambili emikhakheni eminingi. Ngokuzayo, ngokuthuthukiswa okuqhubekayo kwesayensi yezinto kanye nobuchwepheshe bokulungiselela, sinesizathu sokukholelwa ukuthi izingxenye ze-ceramic ezinembayo zizobonisa ukukhanga kwazo okuyingqayizivele kanye nenani emikhakheni eyengeziwe.
Isikhathi sokuthumela: Aug-07-2024