Thaum nws los txog rau "ceramics", ntau tus neeg thawj zaug xav txog cov tais diav hauv tsev, cov vases dai kom zoo nkauj - yooj yim puas tsuaj thiab mos, zoo li tsis muaj feem cuam tshuam rau "kev lag luam" lossis "hardcore". Tab sis muaj ib hom ceramic uas rhuav tshem qhov kev xav no. Nws qhov nyuaj yog qhov thib ob tsuas yog pob zeb diamond, thiab nws tuaj yeem tiv taus qhov kub siab, tiv taus xeb, thiab tseem tuaj yeem rwb thaiv tsev thiab conductive, ua "versatile" hauv kev lag luam. Nws yogsilicon carbide ceramics.
Txij li cov khoom siv uas tiv taus kev hnav hauv cov mines mus rau cov modules fais fab hauv cov tsheb fais fab tshiab, los ntawm cov khoom tiv taus kub siab hauv aerospace mus rau cov khoom siv txhua hnub, silicon carbide ceramics tau txhawb nqa kev ua haujlwm zoo ntawm ntau lub lag luam nrog lawv cov khoom tshwj xeeb. Niaj hnub no, cia peb tham txog dab tsi ua rau cov ceramic "zoo kawg nkaus" no sawv tawm.
1, Nyuaj rau qhov kawg: tus "carrier" hauv thaj chaw ntawm kev tiv thaiv kev hnav
Qhov zoo tshaj plaws ntawm silicon carbide ceramics yog nws qhov nyuaj heev thiab hnav tsis kam. Nws qhov nyuaj ntawm Mohs yog qhov thib ob tsuas yog pob zeb diamond nyuaj tshaj plaws hauv xwm, nyuaj dua li cov hlau ib txwm, hlau tsis xeb, thiab txawm tias alumina ceramics.
Qhov 'hardcore' cwj pwm no ua rau nws ci ntsa iab hauv cov xwm txheej uas nws xav tau tiv taus kev hnav thiab tsim kua muag. Piv txwv li, hauv kev lag luam mining thiab metallurgical, cov khoom siv rau kev thauj cov slurry thiab slag slurry (xws li impellers ntawm slurry twj tso kua mis thiab cov kav dej liners) feem ntau raug ntxuav los ntawm cov khoom siv pob zeb nyuaj rau lub sijhawm ntev, thiab cov hlau ib txwm yuav sai sai raug xeb thiab xau dej. Cov khoom ua los ntawm silicon carbide ceramics tuaj yeem yooj yim tiv taus qhov "abrasion" no thiab muaj lub neej ua haujlwm ntau zaus lossis ntau dua kaum npaug ntawm cov khoom siv hlau, txo qhov zaus thiab tus nqi ntawm kev hloov khoom siv.
Tsis yog tsuas yog nyob rau hauv cov chaw lag luam xwb, peb kuj tuaj yeem pom nws nyob rau hauv lub neej txhua hnub - xws li silicon carbide friction pair hauv mechanical seals. Nrog nws txoj kev tiv thaiv zoo heev, nws ua kom ntseeg tau tias cov khoom siv tsis xau thiab muaj kev poob qis thaum lub sijhawm tig ceev ceev, ua rau kev ua haujlwm ruaj khov ntawm cov khoom siv xws li cov twj tso kua dej thiab cov compressors.
2, Superior "Kev Tiv Thaiv": Kev rwb thaiv tsev rau Kub thiab Corrosion
Ntxiv rau qhov nyuaj, silicon carbide ceramics kuj muaj kev tiv thaiv kub zoo heev thiab kev tiv thaiv corrosion, uas tso cai rau lawv "lo rau lawv cov ncej" hauv ntau "ib puag ncig hnyav".
Hais txog kev tiv taus kub siab, txawm tias tom qab ua haujlwm ntev ntawm 1350 ℃, yuav tsis muaj kev mos lossis deformation. Cov yam ntxwv no ua rau nws yog "tus hlub" hauv kev lag luam aerospace thiab tub rog, xws li siv ua lub nozzle rau lub cav rocket, lining rau cov cub tawg kub siab, thiab lwm yam. Nws tuaj yeem tiv tauj ncaj qha rau cov nplaim taws kub siab lossis cov hlau molten kom tswj tau qhov ruaj khov. Hauv cov txheej txheem tsim khoom kub siab xws li cov cub tawg kev lag luam thiab cov hlau txuas ntxiv casting, silicon carbide ceramic Cheebtsam kuj tseem tuaj yeem hloov cov hlau uas yooj yim puas tsuaj los ntawm qhov kub siab, txuas ntxiv lub neej khoom siv.
Hais txog kev tiv thaiv corrosion, silicon carbide ceramics muaj kev ruaj khov tshuaj lom neeg heev. Txawm hais tias nws yog acid, alkali, lossis ntau yam corrosive gases thiab kua, nws nyuaj rau "erode" nws. Yog li ntawd, hauv kev lag luam tshuaj lom neeg, nws feem ntau siv los ua cov kab ntawm cov tshuaj tiv thaiv, cov kav dej thiab cov li qub rau kev thauj cov khoom siv corrosive; Hauv kev tiv thaiv ib puag ncig, nws qhov muaj nyob kuj tuaj yeem pom hauv cov khoom siv rau kev kho cov dej khib nyiab acid-base siab, kom ntseeg tau tias cov khoom siv tsis corroded thiab ua haujlwm ruaj khov.
3, Versatile "Peev Xwm": Ib tug "Functional Master" uas tuaj yeem ua tau ob qho tib si nruj thiab yoog tau
Yog tias koj xav tias silicon carbide ceramics tsuas yog "nyuaj" thiab "ruaj khov", ces koj tsis quav ntsej lawv ntau dhau. Raws li cov txheej txheem ua tiav sib txawv, nws kuj tuaj yeem muaj ntau yam haujlwm xws li conductivity, rwb thaiv tsev, thiab thermal conductivity, ua rau nws yog cov khoom siv ua haujlwm nrog ntau yam kev siv.
-Kev coj ua thiab cov khoom siv semiconductor: Los ntawm kev doping nrog lwm cov ntsiab lus, silicon carbide ceramics tuaj yeem hloov pauv los ntawm insulators mus rau conductors, thiab txawm tias dhau los ua cov ntaub ntawv semiconductor. Qhov no tso cai rau nws los qhia nws cov txuj ci hauv kev siv hluav taws xob, xws li ua cov modules fais fab rau cov tsheb fais fab tshiab thiab cov khoom tseem ceeb rau cov traction converters hauv cov tsheb ciav hlau ceev ceev. Piv rau cov ntaub ntawv silicon ib txwm muaj, silicon carbide semiconductors muaj kev ua haujlwm siab dua thiab kev siv hluav taws xob qis dua, uas tuaj yeem ua rau cov tsheb fais fab tshiab them sai dua thiab muaj qhov ntev dua, thiab tseem ua rau cov khoom siv fais fab me dua thiab ua haujlwm tau zoo dua.
-Kev ua kom sov zoo heev: Lub zog ua kom sov ntawm silicon carbide ceramics ntau dua li cov ceramics ib txwm muaj, thiab txawm tias ze rau qee cov hlau. Qhov no ua rau nws yog cov khoom siv cua sov zoo tagnrho, piv txwv li, hauv cov khoom siv cua sov ntawm LED teeb thiab cov chips hluav taws xob, nws tuaj yeem ua kom sov sai sai, tiv thaiv cov khoom siv kom tsis txhob puas tsuaj vim kub dhau, thiab txhim kho lub neej ua haujlwm thiab kev ruaj khov.
4, Thaum Kawg: Silicon carbide ceramics, lub 'tsis pom kev tsav tsheb' ntawm kev txhim kho kev lag luam
Txij li "nyuaj thiab hnav-resistant" mus rau "high-temperature corrosion resistance", thiab tom qab ntawd mus rau "multifunctionality", silicon carbide ceramics tau tawg tib neeg txoj kev nkag siab ntawm cov ceramics ib txwm muaj nrog ntau yam khoom zoo heev, dhau los ua cov khoom siv tseem ceeb txhawb kev tsim khoom siab, lub zog tshiab, kev txuag hluav taws xob thiab kev tiv thaiv ib puag ncig. Nws tsis yog ib txwm muaj li hlau lossis lub teeb yuag li yas, tab sis hauv cov xwm txheej kev lag luam uas xav tau "kev kov yeej kev nyuaj siab", nws ib txwm vam khom nws cov yam ntxwv "omnipotent" los ua lub zog tseem ceeb hauv kev daws teeb meem.
Nrog rau kev nce qib ntawm thev naus laus zis, tus nqi tsim khoom ntawm silicon carbide ceramics maj mam txo qis, thiab cov xwm txheej ntawm daim ntawv thov kuj tseem nthuav dav tas li. Yav tom ntej, ob qho tib si cov khoom siv hluav taws xob tshiab zoo dua thiab cov tshuab kev lag luam ruaj khov dua yuav muaj zog dua vim muaj kev ntxiv ntawm silicon carbide ceramics. Hom "khoom siv txhua yam" no zais rau hauv kev lag luam tab tom hloov peb cov khoom tsim khoom thiab lub neej maj mam.
Lub sijhawm tshaj tawm: Cuaj hlis-20-2025