Xa kufikwa kwi "ceramics", abantu abaninzi baqala ngokucinga ngezitya zasekhaya, iivazi zokuhombisa - ezibuthathaka nezithambileyo, ezibonakala zingadibani "neshishini" okanye "eziqinileyo". Kodwa kukho uhlobo lwe-ceramic oluphula olu luvo oluqhelekileyo. Ubulukhuni bayo bulandela idayimani kuphela, kwaye inokumelana namaqondo obushushu aphezulu, imelane nokugqwala, kwaye ikwagqunywe kwaye ikwazi ukuqhuba, ibe "yinto eguquguqukayo" kwicandelo lemizi-mveliso. Injaloi-silicon carbide ceramic.
Ukususela kwizixhobo ezingagugiyo ezimayini ukuya kwiimodyuli zamandla kwizithuthi ezintsha zamandla, ukusuka kwizinto ezimelana nobushushu obuphezulu kwi-aerospace ukuya kwizitywini zemihla ngemihla, ii-silicon carbide ceramics zixhasa ngokuzolileyo ukusebenza kakuhle kwamashishini amaninzi ngeempawu zazo ezizodwa. Namhlanje, masithethe ngento eyenza le ceramic "ingaqhelekanga" ivelele.
1, Kunzima kakhulu: "umthwali" kwicandelo lokumelana nokuguguleka
Eyona nzuzo idumileyo yeeseramikhi ze-silicon carbide bubulukhuni bayo obuphezulu kakhulu kunye nokumelana nokuguguleka. Ubulukhuni bayo be-Mohs bulandela idayimani enzima kakhulu, bunzima kakhulu kunentsimbi eqhelekileyo, intsimbi engatyiwayo, kwaneeramikhi ze-alumina.
Olu phawu luqinileyo luyenza ikhanye kwiimeko apho kufuneka imelane nokuguga. Umzekelo, kwimizi-mveliso yezemigodi neyesinyithi, izixhobo zokuthutha udaka kunye ne-slag slurry (ezifana nee-impellers zeempompo ze-slurry kunye nee-pipeline liners) zihlala zihlanjwa ngamasuntswana eeminerali aqinileyo ixesha elide, kwaye iintsimbi eziqhelekileyo ziya kutshabalala ngokukhawuleza kwaye zivuze amanzi. Izinto ezenziwe nge-silicon carbide ceramics zinokumelana lula nale "abrasion" kwaye zisebenze ixesha elide okanye ngaphezulu kweshumi kunezo zezixhobo zesinyithi, nto leyo enciphisa kakhulu ukuphindaphindeka kunye neendleko zokutshintshwa kwezixhobo.
Ayipheleli nje kwiindawo zoshishino, sinokubona ubukho bayo kubomi bemihla ngemihla - njengesibini se-silicon carbide friction kwi-mechanical seals. Ngenxa yokumelana kwayo nokuguguleka okugqwesileyo, iqinisekisa ukuba izixhobo azivuzi kwaye inelahleko ezincinci ngexesha lokujikeleza ngesantya esiphezulu, ivumela ukusebenza okuzinzileyo kwezixhobo ezifana neempompo zamanzi kunye neecompressor.
2, "Ukumelana" Okugqwesileyo: Ukuthintela ubushushu obuphezulu kunye nokugqwala
Ukongeza kubulukhuni, ii-silicon carbide ceramics nazo zinokumelana nobushushu obuphezulu kunye nokumelana nokugqwala, nto leyo ebavumela ukuba "banamathele kwiintsika zabo" kwiindawo ezininzi "ezinzima".
Ngokuphathelele ukumelana nobushushu obuphezulu, nokuba sele isetyenzisiwe ixesha elide kwi-1350 ℃, akuyi kubakho kuthamba okanye ukuguquka. Olu phawu luyenza ibe “yinto ethandekayo” kwimizi-mveliso yeenqwelo-moya neyezomkhosi, efana nokusetyenziswa njenge-nozzle yeenjini zerokethi, i-lining yee-ovens ezishushu kakhulu, njl. Ingadibana ngokuthe ngqo namalangatye ashushu aphezulu okanye iintsimbi ezinyibilikisiweyo ukugcina uzinzo. Kwiinkqubo zemveliso ezishushu kakhulu ezifana nee-ovens zoshishino kunye ne-metallurgical continuous casting, izinto ze-silicon carbide ceramic nazo zingathatha indawo yeentsimbi ezonakala lula ngamaqondo obushushu aphezulu, nto leyo eyandisa ubomi bezixhobo.
Ngokuphathelele ukumelana nokugqwala, iiseramikhi ze-silicon carbide zinozinzo oluqinileyo lweekhemikhali. Nokuba yi-asidi, i-alkali, okanye iigesi ezahlukeneyo ezigqwala kunye nolwelo, kunzima "ukuyitshabalalisa". Ke ngoko, kwishishini leekhemikhali, idla ngokusetyenziswa ukwenza ulwelo lweenqanawa zokusabela, imibhobho kunye neevalvu zokuthutha imidiya egqwala; Kwicandelo lokhuseleko lokusingqongileyo, ubukho bayo bunokubonwa nakwizixhobo zokunyanga amanzi amdaka ane-acid-base enoxinzelelo oluphezulu, ukuqinisekisa ukuba izixhobo azigqwali kwaye zisebenza ngokuzinzileyo.
3, “Ubuchule” obuguquguqukayo: “Ingcali esebenzayo” enokuba ngqongqo kwaye iguquguquke
Ukuba ucinga ukuba iiseramikhi ze-silicon carbide "ziqinile" kwaye "zihlala ixesha elide", ngoko ke uzithatha kancinci kakhulu. Ngokweendlela ezahlukeneyo zokucubungula, inokuba nemisebenzi emininzi efana nokuqhuba, ukufudumala, kunye nokuqhuba ubushushu, okwenza ukuba ibe yinto esebenzayo enokusetyenziswa ngeendlela ezininzi.
-Iimpawu zokuqhuba kunye ne-semiconductor: Ngokusebenzisa ezinye izinto, ii-silicon carbide ceramics zinokutshintsha ukusuka kwi-insulators zibe zii-conductors, kwaye zide zibe zizixhobo ze-semiconductor. Oku kuyivumela ukuba ibonise izakhono zayo kwicandelo lamandla e-elektroniki, njengokwenza iimodyuli zamandla kwizithuthi zamandla amatsha kunye nezinto eziphambili ze-traction converters kwiitreni ezihamba ngesantya esiphezulu. Xa kuthelekiswa nezixhobo ze-silicon zemveli, ii-silicon carbide semiconductors zinokusebenza okuphezulu kokuqhuba kunye nokusetyenziswa kwamandla okuphantsi, okunokwenza izithuthi zamandla amatsha zitshaje ngokukhawuleza kwaye zibe nomgama omde, kwaye zenze nezixhobo zamandla zibe zincinci kwaye zisebenze kakuhle ngakumbi.
-Ukuqhuba kakuhle kobushushu: Ukuqhuba kakuhle kobushushu kweeseramikhi zesilicon carbide kudlula kakhulu oko kweeseramikhi eziqhelekileyo, kwaye kufikelela nakwizinto ezithile zesinyithi. Olu phawu lwenza ukuba ibe yinto efanelekileyo yokusasaza ubushushu, umzekelo, kwi-substrate yokusasaza ubushushu yezibane ze-LED kunye neetships ze-elektroniki, inokukhupha ubushushu ngokukhawuleza, ithintele izixhobo ukuba zonakaliswe ngenxa yokushisa kakhulu, kwaye iphucule ubomi benkonzo kunye nozinzo.
4, Okokugqibela: Iiseramikhi zeSilicon carbide, 'amandla angabonakaliyo okuqhuba' okuphucula amashishini
Ukususela “kokuqina nokungagugiyo” ukuya “kokumelana nokugqwala okushushu kakhulu”, uze emva koko uye “kwimisebenzi emininzi”, ii-silicon carbide ceramics ziye zaphula ukuqonda kwabantu ngee-ceramics zemveli ngothotho lweempawu ezintle, zaba zizinto ezibalulekileyo ezixhasa uphuhliso lwemveliso ephezulu, amandla amatsha, ukugcinwa kwamandla kunye nokukhuselwa kwendalo. Ayixhaphakanga njengesinyithi okanye ilula njengeplastiki, kodwa kwiimeko zoshishino ezifuna “ukunqoba ubunzima”, ihlala ixhomekeke kwiimpawu zayo “ezinamandla onke” ukuze ibe ngamandla aphambili ekusombululeni iingxaki.
Ngokuqhubeka nokuqhubela phambili kwetekhnoloji, iindleko zemveliso yeeseramikhi ze-silicon carbide ziyancipha kancinci kancinci, kwaye iimeko zokusetyenziswa nazo ziyanda rhoqo. Kwixesha elizayo, zombini izixhobo zamandla ezintsha ezisebenzayo kunye noomatshini bemizi-mveliso abaqinileyo banokuba namandla ngakumbi ngenxa yokongezwa kweeseramikhi ze-silicon carbide. Olu hlobo "lwezinto ezinamandla onke" ezifihliweyo kushishino lutshintsha imveliso yethu kunye nobomi bethu ngokuzolileyo.
Ixesha leposi: Septemba-20-2025