Iyo Ceramics Yambaye "Amasasu atagira amasasu": Kwinjira mwisi ya Carbide ya Silicon

Mu biganiro birebire hagati yabantu nibikoresho birinda,silicon carbide ceramicsni gusubiza icyifuzo cyiteka cyo kurinda umutekano nijwi ryihariye. Iyi ceramic isa nkibisanzwe imvi-umukara ikora verisiyo igezweho yinkuru yo "guhindagurika no koroshya kurwanya ubukana" mubice bigezweho nkinganda za gisirikare nindege.
Kode irinda silicon karbide ceramics iri mwisi ya microscopique. Iyo ikuze kuri nanoscale, inyubako zitagira ingano za tetrahedral zimeze nkiziteranyirijwe hamwe na Lego, kandi iyi miyoboro karemano-itatu itanga ibikoresho hamwe nuburemere budasanzwe nubukomere. Iyo isasu rigira ingaruka hejuru, iyi miterere irashobora gukora nk "isoko ya molekuline", gutondeka no gushonga imbaraga zingaruka, ukirinda kwinjirira no guhindura imikorere yintwaro gakondo no gutsinda intege nke zubutaka busanzwe bukunda gucika.

Ugereranije nibikoresho gakondo bitagira amasasu, ubu bwoko bushya bwibumba bwerekana "imiterere ibiri" idasanzwe. Gukomera kwayo kurashobora guhangana na diyama, ariko uburemere bwayo ni kimwe cya gatatu cyicyuma. Iyi "mucyo nk'ibaba" ituma ibikoresho birinda bigera ku ntera ishimishije mu kuremerera. Ndetse igitangaje kurushaho ni uko nyuma yo guhangana ningaruka zikomeye, idasiga imihangayiko yimbere yimbere nkuko ibyuma bikora, kandi iyi "kutababarira" iranga byongera cyane kwizerwa ryibikoresho.
Muri laboratoire, isahani ya silicon karbide ceramic iri gupimwa ballistique. Iyo igisasu cyegereye ku muvuduko wa metero 900 ku isegonda, ibishashi biturika iyo uhuye ni nk'umuriro werekana isi ya microscopique. Kuri ubu, ubuso bwa ceramic butangira kwerekana "ubuhanga bwa Tai Chi": ubanza, binyuze muburemere bukabije cyane, igisasu kirahuzagurika; hanyuma, imiterere yubuki ikwirakwiza ihungabana mu mpande zose; amaherezo, binyuze muburyo bwa plastike yibikoresho bya matrix, ingufu zisigaye zinjizwa rwose. Ubu buryo bwo kwirwanaho burasobanura neza ubwenge bwikoranabuhanga rigezweho.
Abahanga mu bya siyansi baracyashakisha byinshi bishoboka: binyuze mu gishushanyo mbonera cya bionics kugirango twigane imiterere yuburyo bwibishishwa, dushyiramo fibre yubwenge yubwenge muri materique ceramic, ndetse bagerageza gukora ibikoresho bifite ubushobozi bwo kwikosora. Ibi bishya ntabwo bitera imbere iterambere ryikoranabuhanga ryo kurinda gusa ahubwo binasobanura ibisobanuro bigezweho by "umutekano".
Kuva ku ntwaro z'umuringa z'abasirikare ba kera kugeza kuri nano ceramika ya none, abantu bakomeje kurinda umutekano nticyahindutse. Amateka yiterambere rya ceramika ya silicon karbide aratubwira ati: Kurinda gukomeye akenshi guturuka kumategeko asanzwe meza cyane, kandi iterambere ryibikoresho siyanse ni imbyino nziza kandi ifite amategeko agenga umubiri.