Lolu buchwepheshe lwenza ngokuphawulekayo ukuvikela izimpilo zamasosha
Izikhali zemikhumbi ye-Kevlar izivivinywa zingenye yezobuchwepheshe ezintsha ezenzelwe ukugcina izimpilo zamasosha eziye zathuthukiswa yi-US Army Research Laboratory. Lolu hlobo lwezikhali zomzimba lulula futhi luyavumelana nezimo, okuvumela amasosha abe ngaphezulu kweselula ngenkathi evikelekile. Akuvimbeli umuntu uma eqhuba noma ehlose isikhali sakhe.
Izingxenye Zokuzivikela Zamanzi
Ingxenye esemqoka yesigqebhezana se-liquid is a deepening fluid noma STF.
Lo mketshezi uqukethe izinhlayiya ezinzima ezimiswe okwesikhashana. I-liquid, i-polyethylene glycol, ayiyona into enobuthi futhi ingakwazi ukumelana namazinga ahlukahlukene okushisa. Ama-nanoparticles aqinile we-silica enza elinye ingxenye ye-STF. Le nhlanganisela yezingxenye ezinamanzi nezintambo ziveza izinto eziphathekayo ezingavamile.
I-STF igxiliwe kuzo zonke izingqimba zengubo ye-Kevlar yokwenza izikhali zempahla.
Indlela Ukuzivikela Kwamakhemikhali Okuthinta Ngayo
Isendwangu seKevlar sibamba i-STF endaweni futhi kusiza ukuyeka izinhlamvu. Indwangu egcweleyo ingafakwa, igwetshwe, iphinde igqunywe njenganoma iyiphi enye indwangu.
Ngesikhathi sokuphatha ngendlela evamile, i-STF inokukhubazeka kakhulu futhi igeleza njengeketshezi. Kodwa uma inhlamvu noma i-frag ihlasela isitsha, itjhugulukela kumbhalo oqinile. Lokhu kuvimbela i-projectile ukungena emzimbeni wesosha, ngokusho kukaDkt. Eric Wetzel, injini engumshini we-Arms and Materials Research Directorate ohola ithimba leprojekthi lase- US Army .
U-Wetzel neqembu lakhe basebenze kulobu buchwepheshe noDkt. Norman J. Wagner nabafundi bakhe baseYunivesithi yaseDelaware iminyaka eminingana.
Inhloso yeThekhnoloji
Umgomo wezobuchwepheshe ukudala izinto ezintsha ezindleko eziphansi futhi ezilula kakhulu ngenkathi zinikeza izakhiwo ezilingana noma eziphakeme kakhulu ze-ballistic uma kuqhathaniswa nesendwangu samanje se-Kevlar.
Kodwa izikhali zempahla nazo zinezimo eziguquguqukayo kanye nobukhulu obuncane, ngokusho kuka-Wetzel. Ubuchwepheshe bunokuningi okungenzeka.
Izembatho zamanzi ziqhubeka nokuhlolwa kwelabhorethri, kepha u-Wetzel unesithakazelo ngezinye izinhlelo zokusebenza ukuthi ubuchwepheshe bungasetshenziswa kuwo. "Isibhakabhaka singumkhawulo," kusho u-Wetzel. "Sizoqala ukubeka le nto emikhondeni yesosha kanye namabhulukwe, izindawo ezingavunyelwe izivande ze-ballistic kodwa zidinga ukuhlala ziguquguqukile. Singawasebenzisa futhi lezi zinto ngamabhodlela amabhomu, ukumboza amaphakheji asolisayo noma ukungaxhunyiwe kwemali. izikhali zingase zisetshenziselwe ukugxuma amabhuzu ukuze zikhuni ngesikhathi sithonya ukusekela izinsipho zamasosha. "
Ngaphandle kokulondoloza izimpi zamasosha, u-Wetzel uthe izikhali zempahla esetshenziselwa izitsha ze-Kevlar zingasiza labo abasebenza ngokusemthethweni . "Abagadi bejele namaphoyisa bangase bazuze kulobu buchwepheshe," kusho u-Wetzel. "Izembatho zamanzi ziyi-stab-resistant more than armor body armor. Lokhu kubaluleke kakhulu kubalindi bejele, abavame ukuhlaselwa ngezikhali ezikhali."
U-Wetzel neqembu lakhe banikezwe umklomelo kaPaul A. Siple ka-2002, umklomelo omkhulu kakhulu wezempi wokuphumelela ngokwesayensi, ngomsebenzi wabo ngezikhali zempahla.
NguTonya Johnson, Izindaba Zomphakathi Zempi