Silicon carbideyog ib qho khoom siv ua los ntawm cov khoom siv ua los ntawm silicon thiab carbon atoms uas teeb tsa ua ib lub pob zeb siv lead ua ke. Lub pob zeb atomic no muaj cov yam ntxwv zoo kawg nkaus: nws nyuaj npaum li pob zeb diamond (9.5 ntawm Mohs scale), sib dua peb zaug dua li hlau, thiab muaj peev xwm tiv taus qhov kub tshaj 1,600 ° C. Tsis tas li ntawd, nws cov thermal conductivity siab thiab kev ruaj khov tshuaj lom neeg ua rau nws zoo tagnrho rau cov chaw muaj kev ntxhov siab siab.
Cov Kev Siv Tub Rog: Kev Tiv Thaiv Lub Neej Hauv Kev Sib Ntaus
Tau ntau xyoo lawm, cov tub rog tau nrhiav cov ntaub ntawv uas sib npaug rau kev tiv thaiv thiab kev txav mus los. Cov cuab yeej hlau ib txwm muaj, thaum ua haujlwm tau zoo, ntxiv qhov hnyav rau cov tsheb thiab cov neeg ua haujlwm. Cov khoom siv silicon carbide ceramics daws qhov teeb meem no. Thaum siv rau hauv cov txheej txheem ua hlau sib xyaw - feem ntau muab cov ntaub ntawv xws li polyethylene lossis txhuas - SiC ceramics zoo heev ntawm kev cuam tshuam thiab faib lub zog ntawm cov mos txwv, cov khoom tawg, thiab cov khoom tawg.
Cov tsheb tub rog niaj hnub no, cov phaj hlau tiv thaiv lub cev, thiab cov rooj zaum dav hlau muaj cov vaj huam sib luag SiC ceramic ntau zuj zus. Piv txwv li, cov kaus mom hlau sib ntaus sib tua tiam tom ntej ntawm Teb Chaws Asmeskas siv cov khoom sib xyaw ua ke SiC los txo qhov hnyav thaum tswj kev tiv thaiv cov mos txwv phom. Ib yam li ntawd, cov khoom siv hlau tiv thaiv ceramic sib dua rau cov tsheb tub rog txhim kho kev txav mus los yam tsis muaj kev cuam tshuam rau kev nyab xeeb.
Kev Hloov Pauv Rau Cov Pej Xeem: Kev Nyab Xeeb Dhau Ntawm Kev Sib Ntaus Sib Tua
Cov khoom zoo ib yam uas ua rau SiC ceramics muaj nqis heev hauv kev ua tsov rog tam sim no tau siv rau kev tiv thaiv pej xeem. Thaum cov nqi tsim khoom poob qis, cov lag luam tab tom siv cov "super ceramic" no hauv txoj kev muaj tswv yim:
1. Cov Khoom Siv Tiv Thaiv Tsheb: Cov thawj coj siab, cov neeg sawv cev, thiab cov tsheb VIP tam sim no siv cov vaj huam sib luag SiC ceramic-reinforced kom tsis txhob raug mos txwv, ua ke nrog kev nplua nuj nrog kev ruaj ntseg.
2. Kev Sib Tw Dav Hlau & Kev Sib Tw: Cov pab pawg Formula 1 thiab cov chaw tsim dav hlau muab cov phaj SiC ceramic nyias nyias rau hauv cov khoom tseem ceeb kom tiv thaiv kev cuam tshuam ntawm cov khib nyiab thaum khiav ceev heev.
3. Kev Nyab Xeeb Hauv Kev Lag Luam: Cov neeg ua haujlwm nyob rau hauv ib puag ncig txaus ntshai (piv txwv li, kev khawb av, kev ua haujlwm hlau) hnav cov iav tiv taus kev txiav uas muaj SiC ceramic particles txhawb nqa.
4. Cov Khoom Siv Hluav Taws Xob Rau Cov Neeg Siv Khoom: Kev siv sim suav nrog cov thawv xov tooj ntse uas ruaj khov heev thiab cov thawv uas tiv taus cua sov rau cov roj teeb tsheb fais fab.
Txawm li cas los xij, qhov kev siv rau pej xeem dav tshaj plaws yog nyob rau hauv cov phaj tiv thaiv ceramic. Cov vaj huam sib luag sib dua no tam sim no pom muaj nyob rau hauv:
- Cov khoom siv tua hluav taws kom tiv thaiv cov khib nyiab uas poob
- Cov tsev nyob rau Drone rau kev tiv thaiv kev sib tsoo
- Cov khaub ncaws caij maus taus nrog cov cuab yeej tiv thaiv kev puas tsuaj
- Cov ntxaij vab tshaus kev ruaj ntseg rau cov tsev txhab nyiaj thiab cov chaw muaj kev pheej hmoo siab
Cov Teeb Meem thiab Kev Cia Siab Yav Tom Ntej
Txawm hais tias cov khoom siv silicon carbide ceramics muaj cov txiaj ntsig zoo tshaj plaws, lawv qhov brittleness tseem yog qhov txwv. Cov engineers tab tom daws qhov no los ntawm kev tsim cov khoom siv hybrid - piv txwv li, embedding SiC fibers hauv polymer matrices - los txhim kho kev ywj pheej. Additive manufacturing (3D printing) ntawm SiC Cheebtsam kuj tau txais kev rub, ua rau cov duab nyuaj rau kev daws teeb meem kev tiv thaiv kev cai.
Txij li kev nres cov mos txwv mus rau kev tiv thaiv lub neej txhua hnub, cov khoom siv silicon carbide ceramics qhia txog kev tsim kho tshiab ntawm tub rog tuaj yeem hloov pauv mus rau hauv cov cuab yeej cawm neeg pej xeem. Thaum kev tshawb fawb txuas ntxiv mus, peb yuav sai sai no pom cov cuab yeej ua los ntawm SiC hauv cov khoom siv hauv tsev uas tiv taus av qeeg, cov khoom siv tiv taus hluav taws kub, lossis txawm tias cov cuab yeej hnav tau rau kev ua si nawv hnyav. Hauv lub ntiaj teb uas qhov kev thov kev nyab xeeb nyuaj zuj zus, cov khoom siv ceramic zoo kawg no npaj txhij los daws qhov teeb meem - ib txheej sib dua, tawv heev ib zaug.
Lub sijhawm tshaj tawm: Lub Peb Hlis-20-2025