Isiseko sesithando sokukhulisa ikristale esinye sisixhobo esiphambili kwimveliso yekristale, kwaye uyilo lwaso lwentsimi yobushushu luchaphazela ngokuthe ngqo ubunyulu kunye nomgangatho wekristale. Njengenxalenye ephambili yesithando sobushushu, intsimi yobushushu yegrafiti ecocekileyo kakhulu inikezela ngokuqhuba kakuhle kobushushu, ukumelana nobushushu obuphezulu, kunye nozinzo lweekhemikhali, okwenza ukuba ikwazi ukugcina ukusebenza okuzinzileyo phantsi kobushushu obugqithisileyo.
Intsimi yobushushu iqulatheizifudumezi zegrafayithi, izixhobo zokubethela zegrafayithi, iisilinda zobushushu, kunye nezinye izinto. Ngokulawula ngokuchanekileyo ukusasazwa kobushushu, iqinisekisa ukufana kunye nokuhambelana kuyo yonke inkqubo yokukhula kwekristale. Le nkampani igxile kuphando, uphuhliso, kunye nokuveliswa kwamasimi obushushu egrafiti acocekileyo kakhulu, ibonelela ngezisombululo zobushushu ezisebenzayo eziphezulu zamafutha okukhula kwekristale enye. Ngomxholo wekhabhoni we-≥99.9%, la masimi obushushu asetyenziswa kakhulu kwi-semiconductors, i-photovoltaics, kunye namanye amashishini, ehlangabezana neemfuno ezingqongqo zeekristale ezicocekileyo kakhulu.
Ukusebenza okuphezulu kwee-high-purity graphite thermal fields kuvela kwisakhiwo sazo sekristale esikhethekileyo kunye nobunyulu obuphezulu. Kwiqondo lobushushu begumbi, izinto zibonisa isakhiwo esizinzileyo esineengqimba apho ii-athomu zekhabhoni zenza iinethiwekhi ezinamacala asixhenxe ngokusebenzisa ii-orbital ezixutyiweyo ze-sp², zinika umbane kunye nobushushu obugqwesileyo. Kwiindawo ezinobushushu obuphezulu, ii-high-purity graphite thermal fields zinokumelana nobushushu obungaphezulu kwe-1600°C ngelixa zigcina uzinzo lweekhemikhali, zithintela ukusabela kwizinto ezifana ne-silicon enyibilikisiweyo.
Ngokuphathelele imveliso, le nkqubo ibandakanya ukukhethwa kwezinto eziluhlaza, ukwenziwa, ukucutshungulwa, kunye nokucocwa. Izinto eziluhlaza ziyacolwa zize zicolwe zibe yimpuphu enobukhulu be-micron, kwaye ukungcola okufana ne-sulfur kunye ne-metal oxides kususwa ngokuhlanjwa nge-asidi. Ngexesha lokwenziwa, izinto zenziwe ngendlela esebenzisa oomatshini bokucinezela okanye iteknoloji yokucutshungulwa kwe-isostatic, apho uxinzelelo olungaphezulu kwe-200 MPa luphucula uxinano lwezinto. Le nkqubo yokucutshungulwa yenzeka kwii-oven ezishushu kakhulu ezingaphezulu kwe-2000°C, okuvumela ii-athomu zekhabhoni ukuba ziphinde zicwangciswe kwaye zenze isakhiwo sekristale esicwangcisiweyo. Ukucutshungulwa kwenziwa kwindawo engena-oksijini enobushushu obuphezulu ngokusebenzisa ii-carbonization reactions, okwandisa umxholo wekhabhoni ukuya kuthi ga kwi-99.99%.
Kwizicelo ezisebenzayo, amasimi obushushu e-graphite acocekileyo kakhulu ajongene nemingeni efana nolawulo lobushushu kunye nokuqina kwezinto. Ngokuphucula uyilo lwentsimi yobushushu—njengokulungisa ukusasazwa kwamandla kwezinto zokufudumeza kunye nokuphucula ulwakhiwo lwenkqubo yokupholisa—ulawulo oluchanekileyo lwe-gradients yobushushu lunokufezekiswa, ngaloo ndlela kuphuculwe umgangatho wokukhula kwekristale. Umzekelo, ukusetyenziswa kwezinto zokukhusela ezineeleya ezininzi kunye nolwakhiwo lwepayipi yokupholisa oluphuculweyo kunciphisa ukulahleka kobushushu kwaye kuphucula ukusebenza kakuhle kobushushu. Ukuqina kunokuphuculwa ngakumbi ngetekhnoloji yonyango lomphezulu; i-silicon carbide coatings, umzekelo, inokunyusa ukumelana nokugqwala ngaphezu kwezihlandlo ezithathu, yandise ubomi benkonzo yentsimi yobushushu. Olu phuculo lwetekhnoloji luqinisekisa ukusebenza okuzinzileyo ngaphakathi kwesithando sokukhulisa ikristale enye kwaye luphucula ubumsulwa bekristale kunye nokuhambelana, ukuhlangabezana neemfuno ezingqongqo zemizi-mveliso ye-semiconductor kunye ne-photovoltaic.
Njengenxalenye ephambili yezithando zokukhula kwekristale enye, ukusebenza kwamasimi obushushu e-graphite acocekileyo kakhulu kumisela ngokuthe ngqo umgangatho wekristale kunye nokusebenza kakuhle kwemveliso. Ngokuqhubeka nophuhliso lwetekhnoloji, iinkqubo zokuvelisa ziyaqhubeka ziphucuka kwaye iipropati zezinto ziphuculwa rhoqo. Iiteknoloji zokucoca eziluhlaza—ezifana nokunciphisa i-methanol solvent vapor-phase kunye neendlela zokunciphisa i-hydrothermal—azithinteli kuphela ungcoliseko lokusingqongileyo kodwa zikwavumela imveliso enkulu. Izixhobo ezidityanisiweyo, kuquka i-silicon carbide–reinforced ceramic matrix composites, ziye zaba ziindawo eziphambili zophando ngenxa yokuzinza kwazo okuhle kakhulu kubushushu kunye neepropati zoomatshini. Okwangoku, ukusetyenziswa kwe-nanotechnology kuphucula kakhulu ukuhanjiswa kobushushu kunye nokusebenza koomatshini, njengakwi-carbon nanotube–reinforced composites.
Ukujonga phambili, amasimi obushushu e-graphite acocekileyo kakhulu aza kuqhubeka nokuqhuba ubuchule kwitekhnoloji yokukhula kwekristale. Ngophando oluqhubekayo nophuhliso, kuya kufezekiswa uphuculo olongezelelekileyo kubumsulwa bekristale kunye nomgangatho, ukuhlangabezana neemfuno ezikhulayo zemarike zamashishini e-semiconductor kunye ne-photovoltaic kunye nokubonelela ngenkxaso ebalulekileyo kwimveliso yekristale ecocekileyo kakhulu.
Ixesha lokuthumela: Matshi-04-2026