Sintered SiC Ceramics: Mabhenefiti eSiC Ceramic Ballistic Products
Zvigadzirwa zvesimbi zvesimbi zvesimbi zveSilicon carbideZviri kuramba zvichiwedzera kufarirwa munyaya dzekudzivirira munhu nemauto nekuda kwekushanda kwazvo uye kushanda zvakanaka. Zviumbwa izvi zvesimbi zvine huwandu hweSiC ≥99% uye kuomarara (HV0.5) ≥2600, zvichiita kuti zvive zvinhu zvinosarudzwa pakushandisa mabara akadai semajasi asingapindi mabara uye zvishandiso zvekudzivirira matangi nemotokari dzehondo.
Chigadzirwa chikuru cheiyi nhevedzano ipurasitiki yesimbi yesilicon carbide ceramic. Kurema kwayo kushoma uye huremu hwayo hwakareruka zvinoita kuti ive yakakodzera kwazvo michina yemasoja isingapindi mabara, kunyanya sejira remukati remajasi asingapindi mabara. Uyezve, ine mabhenefiti makuru maererano nekugara kwenguva refu, simba uye kugadzikana kwekupisa.
Zvigadzirwa zvesimbi zvesilicon carbide (SiC) zvine maumbirwo maviri ekristaro, cubic β-SiC uye hexagonal α-SiC. Zvigadzirwa izvi zvine ma covalent bonds akasimba, zviri nani pakugadzira michina, zvinodzivirira oxidation, zvinodzivirira kupera uye coefficient yakaderera yekukweshana kupfuura zvimwe zvigadzirwa zvesimbi zvakaita sealumina neboron carbide. Kufambisa kwadzo kupisa kwakanyanya, coefficient diki yekuwedzera kupisa, uye kuramba kwakanakisa kupisa shock uye chemical corrosion zvinowedzera kubatsira pakushanda kwadzo kwakasiyana-siyana.
Pfungwa yesimbi dzesilicon carbide dzinodzivirira mabara dziri mukukwanisa kwadzo kubvisa nekupinza simba remabara. Kunyange zvazvo zvinhu zvemazuva ano zveinjiniya zvinopinza simba kuburikidza nekuchinja kwepurasitiki, zvinhu zveceramic, kusanganisira silicon carbide, zvinoita izvi kuburikidza nezvidimbu zvidiki.
Maitiro ekunyudzwa kwesimba resimbi dzesilicon carbide dzinogona kukamurwa kuita zvikamu zvitatu. Munguva yekutanga yekugumburwa, bara rinorova pamusoro pesimbi, richidzima bara uye richipwanya pamusoro pesimbi dzeceramic, zvichiita kuti nzvimbo diki dzakaoma dzive dzakapwanyika. Munguva yekukukurwa kwesimbi, bara rakapfava rinoramba richiparadza nzvimbo yemarara, richiumba jira rinogara riripo resimbi dzeceramic. Pakupedzisira, panguva yekushanduka, kutsemuka uye kupwanyika kwesimbi, simbi yeceramic inobatwa nekumanikidzwa kwekusimba, zvichikonzera kuputika kwayo. Simba rasara rinozobviswa nekushanduka kwesimbi yesimbi yekumashure.
Hunhu hwakanaka uhwu uye maitiro ekunyudzwa kwesimba ane matanho matatu zvinoita kuti zvigadzirwa zvesilicon carbide ceramic ballistic zvigone kudzivirira kurovera kwemabara uye kuita kuti asakuvadze. Chiyero chekudzivirira mabara chinosvika padanho rechina reAmerica, iro rinopa dziviriro yakanyanya uye ndiyo sarudzo yekutanga yenyanzvi dzemauto pasi rose.
Muchidimbu, sintered silicon carbide ceramics uye silicon carbide ceramic bulletproof product series zvine zvakanakira zvakasiyana maererano nehunyanzvi hwemakanika, kugadzikana kwekupisa, uye kushanda zvakanaka kwebulletproof. Nehunhu hwavo hwepamusoro, maceramics aya anoshandiswa zvakanyanya sezvinhu zvekudzivirira mavesti anodzivirira bullet uye zvishandiso zvekudzivirira matangi nemotokari dzehondo. Kurema kwawo kushoma uye kwakareruka kunoita kuti ave akakodzera kudzivirirwa kwemunhu. Sezvo tekinoroji ichiramba ichifambira mberi, tinogona kutarisira kufambira mberi uye kushandiswa kweaya maceramics anoshamisa mukudzivirira munhu nemauto.
Nguva yekutumira: Nyamavhuvhu-24-2023