Sintered silicon carbide ceramics ndi silicon carbide ceramic product products zipolopolo

Sintered SiC Ceramics: Ubwino wa SiC Ceramic Ballistic Products

Zinthu zoteteza zipolopolo za ceramic zopangidwa ndi silicon carbideZikutchuka kwambiri pankhani yoteteza anthu ndi asilikali chifukwa cha magwiridwe antchito awo abwino komanso magwiridwe antchito. Zomera izi zili ndi SiC ≥99% ndi kuuma (HV0.5) ≥2600, zomwe zimapangitsa kuti zikhale zinthu zomwe zimagwiritsidwa ntchito popanga zinthu monga ma vesti oteteza zipolopolo ndi zida zodzitetezera ku matanki ndi magalimoto otetezedwa.

Chinthu chachikulu chomwe chapangidwa mu mndandanda uwu ndi pepala lopanda zipolopolo la silicon carbide ceramic. Kulemera kwake kochepa komanso kopepuka kumapangitsa kuti ikhale yoyenera kwambiri pazida zoteteza zipolopolo za asilikali, makamaka ngati mkati mwa ma vest oteteza zipolopolo. Kuphatikiza apo, imapereka zabwino zazikulu pankhani yolimba, mphamvu komanso kukhazikika kwa kutentha.

Ma ceramic a Silicon carbide (SiC) ali ndi mapangidwe awiri a kristalo, cubic β-SiC ndi hexagonal α-SiC. Ma ceramic awa ali ndi ma covalent bonds amphamvu, ma mechanical properties abwino, oxidation resistance, ovary resistance komanso coefficient yotsika ya friction kuposa ma ceramic ena monga alumina ndi boron carbide. Ma thermal conductivity awo apamwamba, coefficient yaying'ono ya thermal expansion, komanso kukana bwino kutentha ndi chemical corrosion zimathandiza kwambiri kuti agwiritsidwe ntchito m'njira zosiyanasiyana.

Mfundo yoteteza zipolopolo za silicon carbide ceramics ili mu kuthekera kwake kochotsa ndi kuyamwa mphamvu ya zipolopolo. Ngakhale kuti zipangizo zachikhalidwe zaukadaulo zimayamwa mphamvu kudzera mu kusintha kwa pulasitiki, zipangizo za ceramic, kuphatikizapo silicon carbide, zimatero kudzera mu ma microfractures.

Njira yoyamwitsa mphamvu ya zipolopolo za silicon carbide zitha kugawidwa m'magawo atatu. Pa gawo loyamba la kugwedezeka, chipolopolo chimagunda pamwamba pa ceramic, kufooketsa chipolopolo ndikuphwanya pamwamba pa ceramic, ndikupanga madera ang'onoang'ono, olimba. Pa gawo la kukokoloka, chipolopolo chopanda kanthu chimapitirizabe kukokoloka malo a zinyalala, ndikupanga wosanjikiza wopitilira wa zinyalala za ceramic. Pomaliza, panthawi ya kusintha, ming'alu ndi kusweka, ceramic imakumana ndi kupsinjika kwa mphamvu, zomwe zimapangitsa kuti iwonongeke pamapeto pake. Mphamvu yotsalayo imatayika chifukwa cha kusintha kwa zinthu zakumbuyo.

Makhalidwe abwino awa komanso njira yoyamwitsa mphamvu ya magawo atatu zimathandiza kuti zinthu zopangidwa ndi silicon carbide ceramic ballistic zithetse bwino kugunda kwa zipolopolo ndikuzipangitsa kukhala zopanda vuto. Chiwerengero cha zipolopolo zotetezeka chimafika pamlingo wachinayi waku America, chomwe chimapereka chitetezo chambiri ndipo ndi chisankho choyamba cha akatswiri ankhondo padziko lonse lapansi.

Mwachidule, zinthu zopangidwa ndi silicon carbide zophimbidwa ndi zipolopolo za ceramic zili ndi ubwino wapadera pankhani ya mphamvu ya makina, kukhazikika kwa kutentha, komanso kugwira ntchito bwino kwa zipolopolo. Chifukwa cha mphamvu zawo zapamwamba, zinthu zopangidwa ndi zipolopolozi zimagwiritsidwa ntchito kwambiri ngati zinthu zomangira zovala zophimbidwa ndi zipolopolo komanso zida zotetezera matanki ndi magalimoto okhala ndi zida. Kulemera kwawo kochepa komanso kopepuka kumapangitsa kuti zikhale zabwino kwambiri poteteza zipolopolo za munthu. Pamene ukadaulo ukupitirira, titha kuyembekezera kupita patsogolo kwina ndi kugwiritsa ntchito zinthu zopangidwa ndi zipolopolozi poteteza munthu payekha komanso m'nkhondo.