Kwiindawo ezinqamlezileyo ezifana ne-semiconductors, amandla amatsha, kunye ne-aerospace, i-grayish-black material ye-ceramic idlala indima ebalulekileyo ngokuthula. Yii-silicon carbide ceramic-impahla enobunzima obunokuthelekiswa nedayimane, eguqula ubuso beshishini lanamhlanje ngokuchanekileyo ngenxa yokumelana nobushushu obuphezulu, ukuxhathisa kwe-corrosion kunye ne-thermal conductivity ephezulu. Kodwa into encinci eyaziwayo kukuba ukuguqula i-silicon carbide powder eqinile kwizixhobo ezichanekileyo, inkqubo yomlingo "yokwenza ubushushu obuphezulu" iyafuneka.
I. Inkqubo yeSintering: Umlingo oPhambili wokuJika amatye abe yigolide
Ukuba i-silicon carbide powder ithelekiswa nejade engapholiswanga, inkqubo ye-sintering yinkqubo ephambili yokuyibumba ibe yimveliso entle. Ngokwenza ubushushu obuphezulu kwi-800-2000℃, amasuntswana omgubo obungakanani bemicron aphinda-”xhawula izandla “kwinqanaba leathom, zenza umzimba oshinyeneyo noqinileyo weceramic. Iinkqubo ezahlukeneyo ze-sintering, njengeendlela ezahlukeneyo zokukrola, izixhobo ezinikezela ngeempawu ezizodwa zokusebenza:
1. Uxinzelelo lwe-atmospheric sintering: Olona didi lwemveli "lucothayo ukutyhubela ubushushu obuphantsi"
Kanye njengokuba isuphu emnandi ephekwe ngokucothayo kufuneka igalelwe ubushushu obuphantsi, le nkqubo ivumela umgubo ukuba uxinene ngokwendalo ngamaqondo obushushu aphezulu. Nangona umjikelo ude kakhulu, unokugcina "i-original flavour" yezinto eziphathekayo kwaye ifaneleke ngakumbi kumacandelo ezixhobo ze-semiconductor kunye neemfuno ezingqongqo zokucoceka.
2. I-Hot-pressing sintering: I-"high-pressure forging technique" elawulwa ngokuchanekileyo
Ukusebenzisa uxinzelelo lomatshini kwindawo ephezulu yokushisa kufana nokunika "i-hot compress massage" echanekileyo kwizinto eziphathekayo, ezinokuphelisa ngokukhawuleza i-voids yangaphakathi. Iingxenye ze-ceramic eziveliswa yile nkqubo zinobuninzi obusondeleyo kwixabiso lethiyori kwaye lukhetho olufanelekileyo lokuvelisa iibheringi ezichanekileyo kunye nezitywina.
3. I-Rection Sintering: "I-Chemical Magic" kwi-Materials World
Ngokusebenzisa ngobuchule ukusabela kweekhemikhali phakathi kwe-silicon kunye nekhabhoni, i-voids izaliswe ngokuzenzekelayo ngexesha lenkqubo ye-sintering. Olu phawu "lokuziphilisa" luyenza ibe sisixhobo esinamandla sokwenza iinxalenye ezintsonkothileyo kunye nezingaqhelekanga, ezifanelekileyo kwiimveliso ezahlukeneyo ezinobushushu obuphezulu, obungagugiyo, obungagugiyo okanye ezinye iindawo ezilungiselelweyo.
Ii. Ukhetho Lwenkqubo: Ubulumko Bokuthungatha ukuze Ilingane
Kanye njengokuba abathungi abaphezulu bekhetha imithungo esekwe kwiimpawu zelaphu, iinjineli kufuneka ziqwalasele ngokupheleleyo iimfuno zemveliso:
Xa ujongana neendawo ezinodonga olucekeceke olunemilo engaqhelekanga, "itekhnoloji yokungena" ye-reaction sintering inokugcina imilo egqibeleleyo.
Iitreyi zeSemiconductor ezineemfuno ezingqongqo zomgangatho othe tyaba zinokuqinisekisa uguquko lweqanda ngoxinzelelo oluqhelekileyo lwe-sintering.
Xa ujongana nezinto ezinomthwalo ophezulu, uxinano oluphezulu kakhulu lokucinezela okutshisayo luhlala lukhethwa.
Iii. Ukuphumelela kweTekhnoloji engabonakaliyo
Kwimbali yendaleko yetekhnoloji ye-sintering, iinguqulelo ezimbini ezifihliweyo zibaluleke kakhulu: ukongezwa okuncinci kwe-AIDS ye-sintering kufana ne-"glue ye-molecular", enciphisa ukusetyenziswa kwamandla ngelixa iqinisa amandla; Inkqubo yokulawula ubushushu bedijithali ifaniswa “nompheki okrelekrele”, ogcina ukuguquguquka kobushushu ngaphakathi ± 5℃ kunye nokuqinisekisa ukuhambelana kokusebenza kwebhetshi nganye yezinto.
Ukusuka kwintsimi yemizi-mveliso engagugiyo kunye ne-corrosion-resistant-resistant industry to advanced semiconductor industry, iiceramics zesilicon carbide zihlengahlengisa ubume boshishino lwanamhlanje. Ukuhlaziywa okuqhubekayo kweteknoloji ye-sintering kufana nokunika amaphiko kule nto yomlingo, eyenza ukuba ibhabhe kwisibhakabhaka esibanzi sesicelo. Njengomvelisi oqeqeshiweyo obambe iqhaza ngokunzulu kwicandelo le-silicon carbide ceramics iminyaka engaphezu kweshumi, uShandong Zhongpeng uyayiqonda incoko phakathi kwezinto kunye nolawulo lobushushu ngcono kunaye nabani na. Ukulungiswa kakuhle kwe-curve ye-sintering kukuhlaziywa kwakhona konxantathu wegolide "wexesha-loxinzelelo lwexesha". Ukudanyaza kwazo zonke iziko kunye nomlilo womlilo uyaqhubeka nokubhala isahluko sokuzivelela kweeseramikhi zamashishini. Ukuxhomekeka kukuzithemba kophando oluzimeleyo kunye nophuhliso kunye nobuchwepheshe obunamalungelo awodwa omenzi wechiza, sihlala sizibophelele ekuboneleleni abathengi ngesisombululo esisodwa ukusuka ekuhlanjululweni kwezinto ezikrwada ukuya kwi-sintering echanekileyo, siqinisekisa ukuba yonke imveliso ye-silicon carbide ceramic ithwala ukufudumala kweminyaka elishumi yobugcisa. Indlela engaphambili ithambile, kwaye ngokuyilwa ngokuphindaphindiweyo, iba ntsha. Siyakumema ngokunyanisekileyo ukuba usithelele ekunikeleni ubungqina ngendlela le ntlantsi yobulumko kwimveliso eyenziwe ngodongwe ekhanyisa izinto ezingenakwenzeka. Sihlala sikholelwa ukuba yonke inkqubela phambili kwisayensi yezinto iqokelela amandla oluntu ukuba aphule imida yetekhnoloji.
Ixesha lokuposa: Apr-17-2025