Kwincoko ende phakathi kwabantu nezinto zokukhusela,iiseramikhi zesilicon carbideiphendula kwisiphakamiso esingapheliyo sokhuseleko ngelizwi elikhethekileyo. Le ceramic ebonakala iqhelekile ingwevu-mnyama yenza inguqulelo yanamhlanje yebali "lokuguquguquka ngokuthambileyo nxamnye nobunzima" kwiindawo eziphambili ezifana noshishino lwezomkhosi kunye neenqwelo-moya.
Ikhowudi yokukhusela ye-silicon carbide ceramics ikwihlabathi layo elincinci. Xa ikhuliswe ukuya kwi-nanoscale, izakhiwo ezingenakubalwa ze-tetrahedral ezintle zifana neebhloko zeLego ezidityaniswe ngokuchanekileyo, kwaye olu thungelwano lwendalo olunemilinganiselo emithathu lunika izinto ubunzima obungaqhelekanga kunye nokuqina. Xa imbumbulu ibetha umphezulu, olu lwakhiwo lunokusebenza njenge "molecular spring", lubeke kwaye lunyibilikise amandla okubetha, luphephe ukuxinana kunye nokuguquka kwezixhobo zesinyithi zendabuko kwaye loyise ubuthathaka be-ceramics eziqhelekileyo eziqhele ukuqhekeka.
Xa kuthelekiswa nezinto zemveli ezingangenisi mbumbulu, olu hlobo lutsha lwe-ceramic lubonisa "ubuntu obubini" obahlukileyo. Ubulukhuni bayo bunokulingana nobedayimani, kodwa ubunzima bayo buyi-1/3 kuphela yentsimbi. Olu phawu "lukhaphukhaphu njengentsiba" luvumela izixhobo zokukhusela ukuba ziphumelele ngokwenene ekukhanyiseni. Okumangalisayo ngakumbi kukuba emva kokumelana nempembelelo enamandla, ayishiyi uxinzelelo lwangaphakathi olubulalayo njengeentsimbi, kwaye olu phawu "lokungaxoleli" luphucula kakhulu ukuthembeka kwezinto.
Kwilabhoratri, ipleyiti yeseramikhi yesilicon carbide ivavanywa ngebhola. Xa iprojectile isondela ngesantya seemitha ezingama-900 ngomzuzwana, iintlantsi eziqhuma xa zidibana zifana nomboniso wemililo kwihlabathi le-microscopic. Okwangoku, umphezulu weseramikhi uqala ukubonisa "izakhono zawo zeTai Chi": okokuqala, ngenxa yobunzima obuphezulu kakhulu bomphezulu, iprojectile iyafiphala; emva koko, isakhiwo sehoneycomb sisasaza amaza okutshatyalaza kuzo zonke iindlela; ekugqibeleni, ngokuguqulwa kweplastiki kwezinto ze-matrix, amandla aseleyo afunxwa ngokupheleleyo. Le ndlela yokuzikhusela yomaleko ngomaleko itolika ngokucacileyo ubulumko betekhnoloji yokukhusela yanamhlanje.
Izazinzulu zezinto ezibonakalayo zisahlola amathuba amaninzi: ngokusebenzisa uyilo lwe-bionics ukuxelisa ulwakhiwo oluneeleya zamaqokobhe, ukufaka imicu yokuziva ekrelekrele kwi-matrix ye-ceramic, kwanokuzama ukwenza ukuba izinto zibe nobuchule bokuzilungisa. Ezi zinto zintsha azipheleli nje ekuqhubeleni phambili kwetekhnoloji yokukhusela kodwa zikwachaza kwakhona intsingiselo yanamhlanje "yokhuseleko".
Ukususela kwizixhobo zobhedu zamajoni amandulo ukuya kwi-nanoceramics zanamhlanje, ukufuna kwabantu ukhuseleko akukatshintshi. Ibali lophuhliso lwe-silicon carbide ceramics lisixelela oku: Ukhuseleko oluqinileyo ludla ngokuvela kwimithetho yendalo egqwesileyo, kwaye impumelelo kwisayensi yezinto ezibonakalayo ngokusisiseko ngumdaniso ogqwesileyo kunye nemithetho yendalo.
Ixesha leposi: Epreli-16-2025