Ukunganyangeki kwe-oxidation kwezinto ezichanekileyo ze-ceramic kunye nendawo yazo yesicelo
Izinto ezichanekileyo ze-ceramic zibalulekile kwizixhobo eziphezulu zokusebenza kwishishini zanamhlanje, kwaye iipropathi zabo ezizodwa kunye nezakhemi zekhemikhali zizise utshintsho kwimimandla emininzi. Phakathi kwabo, ukumelana kwe-oxidation yenye yezona mpawu zibalulekileyo zezinto ezichanekileyo ze-ceramic, ezibaluleke kakhulu kwiindawo ezixineneyo.
Ukunganyangeki kwe-oxidation yezinto ezichanekileyo ze-ceramic
Izinto ezichanekileyo ze-ceramic, ezinjengeAloumina, iSilicon Nitride, i-Silicon Carbide, yaziwa ngokuba ziipropathi zabo ze-antiophawunts. Ezi zixhobo zinokugcina iipropathi ezizinzileyo zekhemikhali phantsi kweqondo lobushushu obuphezulu kunye nendawo ephezulu yokujongana neoksijini, ngaloo ndlela ziphepha ukonakaliswa kwe-oxidition, ukususwa kunye nokusebenza kwendlela yokusebenza. Olu hlaziyo lwe-Oxidation oluhle ikakhulu lubangelwa kukungasebenzi okukuko kunye namandla eendlela zemichiza ngaphakathi kwezinto ze-ceramic, eyenza ukuba ikwazi ukugcina uzinzo kunye nokuthembeka kwiindawo ezinobunzima.
Indawo eNgcono yeSicelo
1. I-Aerospace
Kwintsimi ye-aerospace, ukumelana ne-oxidation okuchaneka kwe-ceramic echanekileyo. Iinjini zenqwelomoya kunye neSpacecraft kufuneka zikwazi ukumelana nobushushu obuphakamileyo kunye negesi ezixineneyo ngexesha lendiza elihamba ngesantya esiphezulu. Amacandelo anjengeendawo zokudibana, ii-nozzles kunye neenjini ezenziwe ngezenzo ezichanekileyo zinokugcina ukusebenza ezinzileyo kumaqondo obushushu aphezulu, ukuthintela i-oxidition kunye nokuqinisekisa ukusebenza kwesiqhelo kwenjini kunye ne-spacecraft.
2. Icandelo leNqaku
Kwicandelo lamandla, ukumelana ne-oxidation ngenxa ye-ceramic echanekileyo idlala indima ephambili. Umzekelo, kwizixhobo ezinobushushu ezifana neeturbines zegesi kunye ne-Boileds-Fid-Driveds, izinto ezifana nezixhobo zokugcina i-ceramic zinokuxhathisa ukuphelisa amaqondo obushushu, khusela ubuchule bangaphakathi kwezixhobo kunye nokuphucula ukusebenza kwamandla. Ukongeza, kwicandelo lamandla enyukliya, izinto ezichanekileyo zenziwe i-celet isetyenziswa ngokubanzi kwintengiso ye-thermal nokukhusela abasebenzi benyukliya ukuqinisekisa ukusetyenziswa ngokukhuselekileyo kwamandla enyukliya.
3. Ishishini leekhemikhali
Kumzi-mveliso wekhemikhali, ukuphendula ezininzi zekhemikhali kunye neenkqubo kufuneka zenziwe kwiqondo lokushisa eliphezulu, uxinzelelo oluphezulu kunye neendawo ezinamandla ezibonisa. Izinto ezichanekileyo ze-ceramic, ngokuzimela kwabo i-oxidation kunye nokunganyangeki kwe-corosion, zizixhobo ezibalulekileyo kwezi meko. Umzekelo, kwizixhobo zekhemikhali kunye ne-Alkali Corrosion, amacandelo anjengemibhobho, i-valves kunye neempompo zenziwe ngempumelelo kunye nokuvuza, ukuqinisekisa ukhuseleko kunye nokuzinza kwemveliso yekhemikhali.
ukuqukumbela
Ngamafutshane, ukumelana kwe-oxidation ngenxa yezinto ezichanekileyo ze-ceramic yenye yeempawu zazo ezininzi ezibalaseleyo, ezidlala indima ebalulekileyo kwi-aerospace, amandla kunye namashishini emichiza. Ngenkqubela phambili eqhubekayo yesayensi kunye netekhnoloji kunye nokwandiswa okuqhubekayo kwezicelo, iipropathi ze-antioxidant zentengo ye-ceramic echanekileyo ziya kuqhubeka zichaphazeleka kwaye ziphucule, ziqhubela phambili kwimimandla emininzi. Kwixa elizayo, ngokuphuhliswa kokuqhubeka kwezenzululwazi kunye netekhnoloji yokulungiselela, sinesizathu sokukholelwa ukuba izinto ezichanekileyo ze-ceramic ziya kubonisa umtsalane wazo owodwa.
IXESHA LOKUQALA: AUG-07-2024