Sintered SiC Ceramics: Fa'idodin SiC Ceramic Ballistic Products
Silicon carbide yumbu mai hana harsashi kayayyakinsuna karuwa sosai a fagen kariyar sirri da na soja saboda kyakkyawan aiki da aikinsu. Waɗannan yumbu suna da abun ciki na SiC ≥99% da taurin (HV0.5) ≥2600, yana mai da su kayan zaɓi don aikace-aikacen ballistic kamar rigar harsashi da kayan kariya na tankuna da motocin sulke.
Babban samfurin wannan jerin shine takardar siliki carbide yumbu mai hana harsashi. Karancin nauyinsa da nauyi ya sa ya dace sosai da kayan aikin soja guda ɗaya, musamman ma rufin ciki na rigar harsashi. Bugu da ƙari kuma, yana ba da fa'idodi masu mahimmanci dangane da dorewa, ƙarfi da kwanciyar hankali na thermal.
Silicon carbide (SiC) yumbura suna da sifofin crystal guda biyu, cubic β-SiC da hexagonal α-SiC. Waɗannan tukwane suna da alaƙa mai ƙarfi na covalent, ingantattun kayan aikin injiniya, juriya na iskar shaka, juriya da ƙarancin juriya fiye da sauran yumbu kamar alumina da boron carbide. Babban ƙarfin wutar lantarki, ƙananan haɓakar haɓakar thermal, da kyakkyawan juriya ga girgizar zafi da lalata sinadarai suna ƙara sauƙaƙe aikace-aikacen su masu fa'ida.
Ka'idar hana harsashi na yumbura silikon carbide ya ta'allaka ne cikin ikonsa na tarwatsewa da sha makamashin harsashi. Yayin da kayan aikin injiniya na gargajiya suna ɗaukar ƙarfi ta hanyar nakasar filastik, kayan yumbu, gami da silicon carbide, suna yin hakan ta hanyar microfractures.
Za'a iya raba tsarin shayar da makamashi na siliki carbide yumbu mai hana harsashi zuwa matakai uku. A lokacin farkon tasirin tasirin, harsashi ya bugi saman yumbu, yana dusashe harsashi kuma yana murƙushe saman yumbu, yana haifar da ƙananan wurare masu ɓarna. A lokacin da zaizayar ƙasa, harsashin ƙwanƙwasa yana ci gaba da lalata tarkacen tarkace, yana samar da tarkacen yumbu mai ci gaba. A ƙarshe, a lokacin ɓarna, tsagewa da karaya, yumbu yana fuskantar damuwa mai ƙarfi, wanda ke haifar da fashewar ta ƙarshe. Ragowar makamashin kuma yana ɓacewa ta hanyar nakasar kayan aikin baya.
Waɗannan kyawawan kaddarorin da tsarin shayarwar makamashi mai matakai uku suna ba da damar samfuran siliki carbide yumbu ballistic don kawar da tasirin harsasai da kyau da kuma sanya su mara lahani. Ƙimar hana harsashi ya kai matakin Amurka na 4, wanda ke ba da mafi girman kariya kuma shine zaɓi na farko na ƙwararrun soja a duniya.
Don taƙaitawa, yumburan siliki na siliki na siliki da jerin samfuran yumbu na siliki carbide suna da fa'idodi na musamman dangane da kaddarorin injina, kwanciyar hankali na zafi, da ingantaccen harsashi. Tare da manyan kadarorinsu, ana amfani da waɗannan yumbu a ko'ina azaman kayan rufi don riguna masu hana harsashi da na'urorin kariya don tankuna da motocin sulke. Ƙananan ƙarancinsu da nauyin nauyi ya sa su dace don kariya ta ballistic na sirri. Yayin da fasaha ke ci gaba da ci gaba, za mu iya tsammanin ci gaba da ci gaba da aikace-aikace na waɗannan manyan tukwane a cikin kariya ta sirri da na soja.
Lokacin aikawa: Agusta-24-2023