Mu kukambirana kwa nthawi yayitali pakati pa anthu ndi zinthu zoteteza,zoumbaumba za silicon carbideikuyankha lingaliro losatha la chitetezo ndi mawu apadera. Chomera chakuda chooneka ngati chakuda chotuwachi chikuchita nkhani yamakono ya "kusinthasintha ndi kufewa motsutsana ndi kuuma" m'magawo apamwamba monga mafakitale ankhondo ndi ndege.
Khodi yoteteza ya silicon carbide ceramics ili m'dziko lake laling'ono kwambiri. Ikakulitsidwa kufika pa nanoscale, mapangidwe ambiri abwino a tetrahedral amakhala ngati mabuloko a Lego osonkhanitsidwa bwino, ndipo netiweki yachilengedwe iyi yamitundu itatu imapatsa zinthuzo kuuma ndi kulimba kwambiri. Chipolopolo chikagunda pamwamba, kapangidwe kameneka kamagwira ntchito ngati "kasupe wamamolekyulu", kuyika ndi kusungunula mphamvu yogunda, kupewa kupindika ndi kusinthika kwa zida zachitsulo zachikhalidwe ndikugonjetsa kufooka kwa ceramic wamba omwe amatha kusweka.
Poyerekeza ndi zipangizo zachikhalidwe zosagwedezeka ndi zipolopolo, mtundu watsopano wa ceramic uwu umasonyeza "umunthu wapawiri" wapadera. Kuuma kwake kumatha kufanana ndi kwa diamondi, koma kulemera kwake ndi gawo limodzi mwa magawo atatu okha a chitsulo. Khalidwe la "kupepuka ngati nthenga" limeneli limalola zida zotetezera kuti zikwaniritse bwino ntchito yopepuka. Chodabwitsa kwambiri ndichakuti pambuyo popirira kugwedezeka kwambiri, sizisiya kupsinjika kwamkati monga momwe zitsulo zimachitira, ndipo khalidwe la "kusakhululuka" limeneli limakulitsa kwambiri kudalirika kwa zinthuzo.
Mu labotale, mbale ya ceramic ya silicon carbide ikuyesedwa ndi ballistic. Pamene projectile ikuyandikira pa liwiro la mamita 900 pa sekondi, ma sparkles omwe amaphulika akakhudza amakhala ngati zozimitsira moto m'dziko la microscopic. Pakadali pano, pamwamba pa ceramic pamayamba kuwonetsa "luso lake la Tai Chi": choyamba, kudzera mu kuuma kwakukulu kwa pamwamba, projectile imaphwanyika; kenako, kapangidwe ka uchi kamafalitsa mafunde ogwedezeka mbali zonse; pomaliza pake, kudzera mu kusintha kwa pulasitiki kwa zinthu za matrix, mphamvu yotsalayo imayamwa kwathunthu. Njira yodzitetezera iyi imatanthauzira bwino nzeru zaukadaulo wamakono woteteza.
Asayansi a zinthu zakuthupi akufufuzabe njira zina zowonjezera: kudzera mu kapangidwe ka bionics kuti atsanzire kapangidwe ka zipolopolo, kuyika ulusi wanzeru wozindikira mu ceramic matrix, komanso kuyesa kupanga zinthuzo kukhala ndi luso lodzikonzera zokha. Zatsopanozi sizimangopititsa patsogolo ukadaulo woteteza komanso zimatanthauziranso tanthauzo lamakono la "chitetezo".
Kuyambira zida zamkuwa za asilikali akale mpaka zida za nanoceramics za masiku ano, kufunafuna chitetezo kwa anthu sikunasinthe. Nkhani ya chitukuko cha zida za silicon carbide imatiuza kuti: Chitetezo champhamvu kwambiri nthawi zambiri chimachokera ku malamulo achilengedwe abwino kwambiri, ndipo kupita patsogolo kwa sayansi ya zinthu ndi kuvina kokongola ndi malamulo achilengedwe.
Nthawi yotumizira: Epulo-16-2025