Engxoxweni ende phakathi kwabantu nezinto zokuvikela,i-silicon carbide ceramicsiphendula isiphakamiso saphakade sokuvikelwa kokuphepha ngezwi eliyingqayizivele. Le ceramic ebonakala ijwayelekile empunga-mnyama yenza inguqulo yesimanje yendaba "yokuguquguquka ngokuthambile ngokumelene nobulukhuni" emikhakheni esezingeni eliphezulu njengemboni yezempi kanye ne-aerospace.
Ikhodi yokuvikela ye-silicon carbide ceramics isezweni layo elincane kakhulu. Uma ikhuliswa ibe yi-nanoscale, izakhiwo ze-tetrahedral eziphozithivu ezingenakubalwa zifana namabhulokhi e-Lego ahlanganiswe ngokunembile, futhi le nethiwekhi yemvelo enezinhlangothi ezintathu inika umsebenzi ngobulukhuni obumangalisayo nokuqina. Uma inhlamvu ithinta indawo engaphezulu, lesi sakhiwo singasebenza “njengesiphethu samangqamuzana”, sibeka isendlalelo futhi sihlakaze amandla omthelela, sigweme ukuhlehla kanye nokuguqulwa kwezikhali zensimbi zendabuko futhi sinqobe ubuthakathaka bezinsimbi zobumba ezivamile ezijwayele ukuqhekeka.
Uma kuqhathaniswa nezinto zendabuko ezingangenwa izinhlamvu, lolu hlobo olusha lwe-ceramic lubonisa "ubuntu obubili" obuyingqayizivele. Ukuqina kwayo bungamelana nobedayimane, kodwa isisindo sayo siyingxenye eyodwa kwezintathu kuphela yensimbi. Lesi sici “sokukhanya njengophaphe” senza izinto ezivikelayo zikwazi ukufeza impumelelo enkulu ekwenzeni izinto ezilula. Okumangaza nakakhulu ukuthi ngemva kokumelana nomthelela omkhulu, akushiyi ukucindezeleka kwangaphakathi okubulalayo njengoba kwenza izinsimbi, futhi lesi sici "sokungaxoleli" sithuthukisa kakhulu ukuthembeka kwento.
Elabhorethri, ipuleti le-silicon carbide ceramic lihlolwa i-ballistic. Lapho i-projectile isondela ngesivinini esingamamitha angu-900 ngomzuzwana, izinhlansi eziqhuma lapho ithintana zifana neziqhumane eziboniswa emhlabeni ongabonakali. Kulo mzuzu, i-ceramic surface iqala ukubonisa "amakhono e-Tai Chi": okokuqala, ngokusebenzisa ubunzima obuphezulu kakhulu, i-projectile iyancipha; khona-ke, isakhiwo sekhekheba lezinyosi sisakaza igagasi lokushaqeka kuzo zonke izinhlangothi; ekugcineni, ngokusebenzisa ukuguqulwa kwepulasitiki kwempahla ye-matrix, amandla asele adonswa ngokuphelele. Le ndlela yokuvikela isendlalelo nesendlalelo ihumusha ngokucacile ubuhlakani bobuchwepheshe bokuvikela besimanje.
Ososayensi bezinto ezibonakalayo basahlola amathuba amaningi: ngedizayini ye-bionics ukulingisa isakhiwo esinezingqimba zamagobolondo, ukushumeka imicu yokuzwa ehlakaniphile ku-matrix ye-ceramic, ngisho nokuzama ukwenza okokusebenza kube namandla okuzilungisa. Lezi zindlela ezintsha aziqhubeki nje kuphela inqubekelaphambili yobuchwepheshe bokuvikela kodwa futhi zichaza kabusha incazelo yesimanje "yokuphepha".
Kusukela ezimbathweni zempi zethusi zamasosha asendulo kuya ezitsheni zanamuhla ze-nano, ukuphishekela kwabantu ukuvikela ukuphepha akushintshile. Indaba yokwakhiwa kwe-silicon carbide ceramics iyasitshela: Ukuvikelwa okuqine kakhulu kuvame ukuvela emithethweni yemvelo enhle kakhulu, futhi ukuphumelela kwesayensi yezinto ezibonakalayo kuwumdanso omuhle onemithetho yemvelo.
Isikhathi sokuthumela: Apr-16-2025