Ehlabathini lokuveliswa kwemizi-mveliso, kuhlala kukho iindawo ezikhethekileyo ezimise iintloko ezinika iinjineli iintloko - zinokuba yimibhobho egobileyo kwisixhobo esichanekileyo okanye izakhiwo zenkxaso ezineegrooves eziyinkimbinkimbi kwizixhobo eziphezulu zokushisa. Ezi zixhobo, ezaziwa ngokuba "ziindawo ezingaqhelekanga," kuhlala kunzima ukwenza ngezinto eziqhelekileyo ngenxa yeemilo zazo ezizodwa kunye neendawo zokusebenza ezilukhuni. Namhlanje, i-silicon carbide, into ebonakala ingabalulekanga, iguqula ngokuthula yonke into.
Iingenelo zendalo zemathiriyeli ngokwayo
Ukuqonda ukuba kuthenii-silicon carbideiyakwazi ukwenza amalungu angaqhelekanga, okokuqala kufuneka sijonge "umgaqo-siseko" wayo. Esi sixhobo ngokwemvelo sithwala "imfuza egqwesileyo" efunekayo kwimveliso yemizi-mveliso: ukuqina kwayo okwesibini kwidayimane, kodwa inokumelana nokutshintsha kobushushu obunzulu njengentsimbi; Ukujongana nokugqwala kwee-asidi ezinamandla kunye ne-alkali, ihlala ingashukumi; Kwanakwiqondo lobushushu eliphezulu elikufutshane nelanga, iyakwazi ukugcina ukumila okuzinzileyo.
Le ndibaniselwano yeempawu ivumele i-silicon carbide ukuba iphumelele kumgca wokuqala ukusuka ekuqaleni. Khawufane ucinge ukuba ngelixa ezinye izinto zisasokola nokuba zingenziwa kule milo, i-silicon carbide sele iqwalasela indlela yokwenza ngcono. Amandla ayo aphezulu kunye nokuzinza kuvumela abaqulunqi ukuba bagweme ukuguqula i-original optimal design yoyilo ukulungiselela iipropati eziphathekayo.
'Umlingo wokubumba' oguquguqukayo noguquguqukayo
Ukuba nemathiriyeli efanelekileyo iyodwa akwanelanga. Ukuguqula i-silicon carbide ibe ngamalungu ahlukeneyo amile kakuhle, "umlingo wokubumba" okhethekileyo uyafuneka. Iinjineli kule mihla ziye zafunda iindlela ezahlukeneyo zokwenza i-silicon carbide "ithobele":
Itekhnoloji yokucinezela ye-isostatic ebandayo ifana nokubeka "ingubo eyomeleleyo" ekhethekileyo kwi-silicon carbide powder. Ngaphantsi koxinzelelo oluphezulu, umgubo unokubambelela ngokufanayo kuzo zonke iinkcukacha zokubumba, kunye nemigodi enzima kunye neepatheni ezifihlakeleyo zinokuphinda ziphindwe ngokuchanekileyo. Itekhnoloji ye-laser ekhokelwa ngamanzi ifana "nemela yotyando" ebuthathaka, isebenzisa ukuhamba kwamanzi ngesantya esiphezulu ukukhokela i-laser kunye nokukrola izakhiwo ezahlukahlukeneyo ezintsonkothileyo kwi-silicon carbide, engayi kubangela ukuqhekeka kwezinto kwaye inokuqinisekisa indawo egudileyo.
Ezi nkqubela phambili zetekhnoloji zikhulule i-silicon carbide kwileyibhile yeeseramikhi zemveli njenge "brittle, hard, and hard to process". Kanye njengokubumba ngodongwe lwerabha, itekhnoloji yangoku ivumela i-silicon carbide powder ukuba iqale yenze umzimba osondeleyo kwimilo yawo yokugqibela, kwaye emva koko ingene kwi-sintering yobushushu obuphezulu ukuze ibe yimveliso egqitywe nzima, inciphisa kakhulu ubunzima bokusetyenzwa okulandelayo.
Uxanduva oluthembekileyo kwiNdawo eNgqongileyo
Kutheni le nto kufuneka sibeke umgudu ongaka wokusebenzisa i-silicon carbide ukwenza iindawo ezingaqhelekanga? Kuba amaxesha amaninzi, la malungu amile ngokukodwa kufuneka asebenze kwezona ndawo zinzima.
Kwiketile eyomeleleyo yokusabela kweasidi yesityalo sekhemikhali, umbhobho omile okwesilicon carbide unokuxhathisa umhlwa; Kwindawo yobushushu obuphezulu beenjini zenqwelomoya, izibiyeli ezimilise okwe-silicon carbide zinokumelana novavanyo lwamawakawaka amadigri; Kwizixhobo ezichanekileyo zokwenza i-semiconductor, i-silicon carbide shaped components inokugcina ukuchaneka okuzinzile. Kule meko, ukumila okukhethekileyo akwenzelwanga ukuba kubonakale kukuhle, kodwa ukufezekisa imisebenzi ethile - kunokwenza ukuba i-fluid ihambe kakuhle, okanye inokuthi ikhuphe ukushisa ngokulinganayo.
Ubunqabileyo be-silicon carbide buxhomekeke ekukwazini ukuhlangabezana neemfuno zoyilo lwezakhiwo ezingaqhelekanga kunye nokusebenza ngokuthembekileyo kwiindawo ezigqithiseleyo ixesha elide. Oku kudityaniswa kokuqina kunye nokuguquguquka kuye kwenza ukuba kube yinto ekhethiweyo kwinani elikhulayo lemimandla yezoshishino.
Ikamva lokwenziwa ngokwezifiso
Ngokuhambela phambili kwetekhnoloji yokuvelisa, amandla okwenza ngokwezifiso iinxalenye ezimile ze-silicon carbide zihlala ziphucuka. Ukusuka kwi-microstructures iimilimitha ezimbalwa ukuya kumacandelo amakhulu ubude beemitha ezininzi, ukusuka ekugotyweni okulula ukuya kwipolyhedra entsonkothileyo, isilicon carbide yophula ukuqonda kwabantu ngokwendalo kwemathiriyeli yeceramic.
Kumashishini, oku kuthetha okunokwenzeka okutsha ngakumbi - akusekho mfuneko yokunciphisa iimbono zoyilo kumacandelo asemgangathweni, kunye nokukwazi ukulungisa izisombululo ezizezona zisekwe kwiimfuno zokwenyani. Kulo lonke icandelo lemizi-mveliso, ukuthandwa kweendawo ezinemilo ye-silicon carbide kuqhuba uphuhliso lwezixhobo ukuya ekusebenzeni okuphezulu, ukuqina, kunye nokuchaneka.
Esi sixhobo somlingo, "kunye namandla anzima" kunye "nobugcisa bobugcisa", siguqula uyilo olutenxileyo olwalukade lukwiplani lube ngamandla asebenzayo aqhubela phambili inkqubela kushishino.
Ixesha lokuposa: Aug-01-2025