Hauv kev tiv thaiv niaj hnub no, nrog rau kev txhim kho tas mus li ntawm lub zog riam phom, qhov yuav tsum tau ua rau cov ntaub ntawv tiv thaiv mos txwv tau dhau los ua qhov nruj dua.Silicon carbide, ib yam khoom zoo li qub tab sis muaj zog heev, maj mam tshwm sim ua ib yam khoom tshiab uas nyiam tshaj plaws hauv kev lag luam tiv thaiv tau mos txwv. Niaj hnub no, peb yuav qhia txog daim ntaub thaiv tsis pub lwm tus paub ntawm silicon carbide tiv thaiv tau mos txwv.
1. Qhia txog lub hauv paus ntsiab lus tiv thaiv tau
Lub hauv paus ntawm kev tiv thaiv riam phom yog siv lub zog ntawm cov khoom siv phom, ua rau lawv qeeb qeeb kom txog thaum lawv poob lawv qhov kev phom sij. Cov khoom siv hlau ib txwm siv cov yas deformation los nqus lub zog, thaum cov khoom siv ceramic ua tiav lub hom phiaj no los ntawm cov txheej txheem tshwj xeeb micro crushing. Piv txwv li, siv silicon carbide bulletproof ceramics ua piv txwv, thaum lub projectile cuam tshuam, lub projectile ua ntej yuav blunt tam sim ntawd ntawm qhov chaw cuam tshuam, thiab qhov chaw ceramic raug tsoo kom tsim ib thaj chaw tawg. Cov txheej txheem no zoo li muab lub projectile rau "rauj" thiab pib nqus lub zog; Tom qab ntawd, lub projectile blunted txuas ntxiv mus tom ntej, ua rau thaj chaw tawg thiab tsim ib txheej txuas ntxiv ntawm cov khoom siv ceramic; Thaum kawg, cov khoom siv ceramic tawg nyob rau hauv kev ntxhov siab tensile, thiab lub backplate pib deform. Lub zog seem yog nqus tag nrho los ntawm kev deformation ntawm cov khoom siv backplate.
2, Vim li cas silicon carbide thiaj li tiv taus tau mos txwv?
Silicon carbide yog ib qho khoom sib xyaw ua los ntawm cov kev sib txuas ntawm covalent, thiab nws cov kev sib txuas Si-C tuaj yeem tswj tau lub zog siab thaum kub siab. Cov qauv tshwj xeeb no ua rau silicon carbide ceramics muaj ntau yam khoom zoo heev. Nws muaj qhov nyuaj heev, thib ob tsuas yog pob zeb diamond, cubic boron nitride, thiab boron carbide ntawm cov khoom siv feem ntau. Nws zoo li ib tug tub rog hnav ib lub tsho tiv thaiv tawv, muaj peev xwm tiv taus qhov cuam tshuam ntawm projectile; Tib lub sijhawm, nws muaj qhov ceev qis dua thiab sib dua thaum ua rau cov khoom siv tiv thaiv mos txwv. Txawm hais tias nws yog rau kev sib ntaus sib tua ib leeg lossis nruab nrog tsheb thiab dav hlau, nws yuav tsis ua rau lub nra hnyav ntxiv, tab sis tuaj yeem txhim kho kev txav mus los ntawm cov tub rog sib ntaus sib tua. Tsis tas li ntawd, silicon carbide kuj muaj kev ruaj khov thermal zoo thiab kev tiv thaiv tshuaj lom neeg corrosion, thiab tuaj yeem ua lub luag haujlwm tiv thaiv mos txwv hauv ntau qhov chaw nyuaj.
3, Cov txiaj ntsig tshwj xeeb ntawm cov tshuaj tiv thaiv sintered silicon carbide hauv cov khoom siv kho kom haum
Hauv cov txheej txheem npaj ntawm silicon carbide ceramics, cov tshuaj tiv thaiv sintered silicon carbide (RBSiC) sawv tawm, tshwj xeeb tshaj yog tsim rau kev tsim khoom ib feem, rau cov laj thawj hauv qab no:
1. Qhov ceev ceev thiab lub zog siab: Nyob rau hauv qhov kub siab, cov pa roj carbon dawb reacts nrog kua silicon los tsim cov silicon carbide siv lead ua tshiab. Tib lub sijhawm, cov silicon dawb nkag mus thiab puv cov qhov hws, ua rau cov khoom ntom ntom ntau ntxiv, yuav luag ze rau qhov ceev theoretical. Qhov no tsis tsuas yog muab cov khoom nrog lub zog compressive thiab bending zoo heev, tab sis kuj muab nws zoo hnav tsis kam, uas tuaj yeem tiv taus siab siab thiab cov xwm txheej cuam tshuam siab, ua tau raws li cov kev cai nruj ntawm cov khoom siv rau lub zog thiab kev ua haujlwm ntev.
2. Cov qauv me me uas tswj tau: Cov txheej txheem sintering tshuaj tiv thaiv tuaj yeem tswj tau qhov kev loj hlob ntawm cov noob, tsim cov qauv me me thiab sib xws. Cov qauv me me no ua rau cov khoom siv kho tshuab ntawm cov khoom siv zoo dua, ua rau nws ruaj khov thiab tsis yooj yim tawg lossis puas tsuaj thaum ntsib ntau yam kev ntxhov siab, muab kev lees paub zoo rau kev ntseeg siab ntawm cov khoom siv kho kom haum.
3. Qhov tseeb ntawm qhov ntev: Thaum lub sijhawm ua kom tuab, qhov kev hloov pauv ntawm cov tshuaj tiv thaiv sintered silicon carbide yog qhov tsawg heev, uas yog qhov tseem ceeb rau cov khoom siv kho kom haum. Txawm hais tias nws yog ib qho ntsaws tiv thaiv mos txwv rau ib tus tub rog nrog cov duab sib txawv lossis cov khoom siv tiv thaiv tsheb tshwj xeeb nrog cov kev cai loj me, lawv tuaj yeem tsim tau meej kom ntseeg tau tias muaj kev sib raug zoo nrog cov khoom siv.
4. Kev ruaj khov tshuaj lom neeg zoo: Cov tshuaj silicon carbide uas tau sintered yuav luag tsis muaj qhov qhib, ua rau nws nyuaj rau cov pa oxygen thiab cov tshuaj corrosive nkag mus rau hauv cov khoom siv, yog li muaj kev tiv thaiv oxidation thiab corrosion muaj zog heev. Qhov no txhais tau tias cov khoom silicon carbide uas tsis muaj zog tseem tuaj yeem tswj tau qhov ua tau zoo, ntev lub neej kev pabcuam, thiab txo cov nqi txij nkawm hauv cov chaw ib puag ncig ntuj lossis tshuaj lom neeg hnyav rau lub sijhawm ntev.
4, Silicon carbide daim ntawv thov daim teb tsis muaj zog
Nrog nws cov kev ua tau zoo heev, cov ntaub ntawv silicon carbide bulletproof tau siv dav hauv ntau qhov chaw:
1. Cov khoom siv ib leeg: cov tsho tiv thaiv mos txwv silicon carbide, lub kaus mom hlau tiv thaiv mos txwv, thiab lwm yam, muab cov tub rog nrog kev tiv thaiv hnyav thiab siab, ua rau lawv muaj peev xwm sib ntaus sib tua tau yooj yim hauv tshav rog thaum muaj kev tiv thaiv kev nyab xeeb txhim khu kev qha.
2. Cov tsheb tshwj xeeb: xws li cov tsheb armored, cov tsheb thauj nyiaj ntsuab, cov tsheb tiv thaiv kev ua phem thiab kev tswj hwm kev kub ntxhov, thiab lwm yam, muaj cov silicon carbide ceramic armor hauv cov khoom tseem ceeb, uas tuaj yeem tiv taus ntau yam riam phom tawm tsam thiab tiv thaiv kev nyab xeeb ntawm cov neeg ua haujlwm thiab cov khoom tseem ceeb hauv lub tsheb.
3. Kev Siv Dav Hlau: Cov khoom siv tiv thaiv mos txwv silicon carbide siv rau ntawm cov dav hlau tua rog thiab lwm lub dav hlau kom txo lawv qhov hnyav, txhim kho kev ua tau zoo ntawm kev ya dav hlau, thiab txhim kho lawv lub peev xwm los tiv thaiv kev tua hluav taws ntawm yeeb ncuab, kom ntseeg tau tias kev nyab xeeb ntawm kev ya dav hlau.
Nrog rau kev nce qib ntawm thev naus laus zis, cov ntaub ntawv silicon carbide bulletproof yuav txuas ntxiv mus tsim kho thiab tsim kho tshiab, tsim kom muaj kab tiv thaiv zoo dua rau kev tiv thaiv kev nyab xeeb. Yog tias koj xav tau cov khoom siv kho kom haum rau cov tshuaj tiv thaiv sintered silicon carbide ceramics, thov koj xav tiv tauj peb.
Lub sijhawm tshaj tawm: Lub Rau Hli-06-2025