Ukumelana ne-oxidation yezinto ze-ceramic ezichanekileyo kunye nendawo ezisetyenziswa kuyo
Izinto zeseramikhi ezichanekileyo zizinto ezibaluleke kakhulu kushishino lwanamhlanje, kwaye iimpawu zazo zomzimba nezekhemikhali ezizodwa zizise utshintsho olukhulu kwiinkalo ezininzi. Phakathi kwazo, ukumelana ne-oxidation yenye yezona mpawu zibalaseleyo zezinto zeseramikhi ezichanekileyo, nto leyo ebaluleke kakhulu kwiindawo ezixineneyo.
Ukumelana ne-oxidation yezinto ze-ceramic ezichanekileyo
Izixhobo zeseramikhi ezichanekileyo, ezifana ne-alumina, i-silicon nitride, i-silicon carbide, njl.njl., zaziwa ngeempawu zazo ezibalaseleyo ze-antioxidant. Ezi zinto zinokugcina iipropati zeekhemikhali ezizinzileyo phantsi kobushushu obuphezulu kunye nendawo ephezulu ye-oxidation, kwaye azilula ukusabela ngeoksijini, ngaloo ndlela ziphephe i-oxidation, ukugqwala kunye nokonakala kokusebenza kwezinto. Olu xhathiso lubalaseleyo lwe-oxidation lubangelwa kakhulu yisakhiwo sekristale esizinzileyo kunye namandla eebhondi zeekhemikhali ngaphakathi kwezinto zeseramikhi, ezenza ukuba zikwazi ukugcina uzinzo kunye nokuthembeka kwexesha elide kwiindawo ezinzima.
Indawo ebalulekileyo yesicelo
1. Inqwelo-moya
Kwintsimi yeenqwelo-moya, ukumelana nokuxinana kwezixhobo zeseramikhi ezichanekileyo kubaluleke kakhulu. Iinjini zeenqwelo-moya kunye neenqwelo-moya kufuneka zimelane nobushushu obuphezulu kakhulu kunye neegesi ezikhupha ioksijini ngexesha lokubhabha ngesantya esiphezulu. Izixhobo ezifana namagumbi okutsha, ii-nozzles kunye neeturbine ezenziwe ngezinto zeseramikhi ezichanekileyo zinokugcina ukusebenza okuzinzileyo kubushushu obuphezulu, zithintele ngokufanelekileyo ukuxinana kunye nokubola, kwaye ziqinisekise ukusebenza okuqhelekileyo kwenjini kunye neenqwelo-moya.
2. Icandelo lezamandla
Kwicandelo lamandla, ukumelana nokuxinana kwe-oxidation kwezinto ze-ceramic ezichanekileyo nako kudlala indima ebalulekileyo. Umzekelo, kwizixhobo ezishushu kakhulu ezifana nee-turbine zegesi kunye neebhoyila ezisebenzisa amalahle, izinto ezifana nee-thermal insulation layers kunye nezihluzi ezenziwe ngezinto ze-ceramic zinokuxhathisa ukukhukuliseka komsi oshushu kakhulu, zikhusele ulwakhiwo lwangaphakathi lwezixhobo kwaye ziphucule ukusebenza kakuhle kwamandla. Ukongeza, kwicandelo lamandla enyukliya, izixhobo ze-ceramic ezichanekileyo nazo zisetyenziswa kakhulu kwi-thermal insulation kunye ne-protective layer ye-nuclear reactors ukuqinisekisa ukusetyenziswa ngokukhuselekileyo kwamandla enyukliya.
3. Ishishini leekhemikhali
Kwishishini leekhemikhali, kufuneka kwenziwe ii-chemical reactions kunye neenkqubo ezininzi kwiindawo ezishushu kakhulu, uxinzelelo oluphezulu kunye neendawo ezirhabaxa ezinamandla. Izixhobo ze-ceramic ezichanekileyo, ezinokumelana kwazo kakuhle kwe-oxidation kunye nokumelana nokugqwala, zizinto eziyimfuneko kwezi ndawo. Umzekelo, kwizixhobo zeekhemikhali ezine-acid kunye ne-alkali corrosion enzima, izixhobo ezifana neepayipi, iivalvu kunye neepompo ezenziwe ngezinto ze-ceramic zinokuthintela ngempumelelo ukugqwala kunye nokuvuza, ukuqinisekisa ukhuseleko kunye nokuzinza kwemveliso yeekhemikhali.
isiphelo
Ngamafutshane, ukumelana nokuxinana kwe-oxidation kwezinto ze-ceramic ezichanekileyo yenye yeempawu zayo ezininzi ezintle, edlala indima ebalulekileyo kwimizi-mveliso ye-aerospace, amandla kunye neekhemikhali. Ngokuqhubeka kwesayensi kunye netekhnoloji kunye nokwandiswa okuqhubekayo kwezicelo, iipropati ze-antioxidant zezinto ze-ceramic ezichanekileyo ziya kuqhubeka zixhalatyiswa kwaye ziphuculwe, zizisa ubuchule kunye nenkqubela phambili kwiindawo ezininzi. Kwixesha elizayo, ngophuhliso oluqhubekayo lwesayensi yezinto eziphathekayo kunye netekhnoloji yokulungiselela, sinesizathu sokukholelwa ukuba izinto ze-ceramic ezichanekileyo ziya kubonisa ubuhle bazo obukhethekileyo kunye nexabiso kwiindawo ezininzi.
Ixesha lokuthumela: Agasti-07-2024