Hauv kev lag luam tshuaj lom neeg, lub zog, thiab kev tiv thaiv ib puag ncig, cov kav dej zoo li "cov hlab ntsha" ntawm cov khoom siv, thauj ntau yam tseem ceeb. Tab sis qee qhov xwm txheej ua haujlwm tuaj yeem hu ua "purgatory": qhov chaw kub siab tuaj yeem ua rau cov hlau mos, cov kua qaub thiab alkalis muaj zog tuaj yeem ua rau cov phab ntsa yeeb nkab puas tsuaj, thiab cov kua uas muaj cov khoom me me yuav txuas ntxiv mus ua puas thiab hnav. Ntawm lub sijhawm no, cov kav dej ib txwm muaj feem ntau tawm tsam, thaumcov kav dej silicon carbidedaws cov teeb meem no nrog lawv qhov xwm txheej uas tsis muaj zog.
Yug Los Muaj Zog: Tus Password Ua Haujlwm ntawm Silicon Carbide
Lub zog ntawm silicon carbide ceramics nyob rau hauv nws cov "cov khoom siv noob" - silicon carbide ceramics yog hu ua "dub pob zeb diamond" ntawm kev lag luam, nrog peb qhov zoo tseem ceeb.
Nws qhov nyuaj yog qhov nyuaj tshaj qhov xav tau, thib ob tsuas yog pob zeb diamond thiab txog li tsib npaug ntawm cov hlau ib txwm muaj. Ntsib nrog cov kua dej uas muaj cov khoom khov, nws zoo li hnav "armor tiv taus hnav" uas tsis yooj yim hnav nyias thiab muaj lub neej ntev dua li cov yeeb nkab hlau. Hauv qhov chaw kub siab, nws yog 'tus tswv ntsiag to', txawm tias nyob rau hauv qhov kub ntawm ntau txhiab degrees Celsius, nws cov qauv tseem ruaj khov, tsis zoo li stainless hlau uas muaj kev poob qis sai sai ntawm qhov kub siab dua me ntsis. Thiab nws tuaj yeem tiv taus qhov kub hloov pauv loj heev, thiab nws yuav tsis tawg txawm tias thaum raug rau cov xov xwm kub siab thaum lub caij ntuj no.
Qhov tseem ceeb tshaj plaws yog nws "lub peev xwm tiv thaiv xeb", uas tuaj yeem hu ua acid-base "tiv thaiv kab mob". Txawm hais tias nws yog cov kua qaub muaj zog xws li concentrated sulfuric acid thiab hydrofluoric acid, cov concentration siab ntawm sodium hydroxide thiab cov hauv paus muaj zog, lossis txawm tias ntsev tsuag thiab hlau molten, nws nyuaj rau corrode nws cov phab ntsa yeeb nkab. Qhov no daws qhov teeb meem loj ntawm kev xeb yeeb nkab thiab xau hauv ntau qhov xwm txheej kev lag luam.
Piv rau kev lig kev cai: vim li cas nws thiaj ntseeg tau ntau dua?
Piv nrog cov kav dej ib txwm muaj, qhov zoo ntawm cov kav dej silicon carbide tuaj yeem hais tias yog "kev txo qhov ntev".
Cov kav dej hlau feem ntau yuav mos thaum kub siab thiab tuaj yeem raug hluav taws xob thaum raug rau cov kua qaub thiab alkali. Cov khoom tsis huv yuav txawm tias poob thaum lub sijhawm thauj mus los ntawm cov xov xwm meej, cuam tshuam rau lawv qhov zoo. Txawm hais tias cov kav dej yas engineering tiv taus corrosion, lawv qhov kub tsis kam yog qis heev, feem ntau tsawg dua 200 ℃, thiab lawv kuj yooj yim laus thiab tawg. Cov kav dej ceramic ib txwm tiv taus kub siab thiab hnav, tab sis lawv tawg heev thiab yuav tawg txawm tias qhov kub hloov pauv me ntsis.
Thiab cov kav dej silicon carbide zam tau qhov tsis zoo no, nrog rau peb lub peev xwm tseem ceeb ntawm qhov nyuaj, tiv taus kub, thiab tiv taus corrosion, uas ua tau raws li qhov yuav tsum tau ua ntawm kev lag luam niaj hnub rau "kev ua neej ntev, kev ruaj khov, thiab kev saib xyuas tsawg kawg nkaus" ntawm cov kav dej.
Nkag mus rau hauv kev lag luam: Nws qhov muaj nyob tuaj yeem pom txhua qhov chaw
Niaj hnub no, cov kav dej silicon carbide tau dhau los ua "tus qauv" rau ntau qhov xwm txheej ua haujlwm hnyav. Hauv kev lag luam tshuaj lom neeg, nws yog lub luag haujlwm rau kev thauj ntau yam kua qaub thiab alkalis uas tsis tas hloov thiab saib xyuas ntau zaus; Hauv lub kaw lus desulfurization thiab denitrification ntawm cov chaw tsim hluav taws xob, nws tuaj yeem tiv taus qhov kub thiab txias thiab cov av noo siab, thiab nws lub neej ua haujlwm tuaj yeem tshaj 10 xyoo.
Hauv cov chaw tsim khoom semiconductor, nws qhov kev ntshiab siab heev ua kom tsis muaj kuab paug hauv kev thauj mus los ntawm cov pa roj ntshiab siab, ua rau nws yog "tus qauv kub" rau kev tsim cov khoom siv chip; Hauv kev lag luam metallurgical, nws tuaj yeem thauj cov hlau kub thiab cov hmoov ore yam tsis ntshai kev yaig thiab hnav. Txawm tias nyob hauv kev lag luam aerospace, cov kav roj kub siab ntawm cov cav rocket tsis tuaj yeem ua yam tsis muaj lawv kev txhawb nqa.
Nrog kev tshawb pom tshiab ntawm thev naus laus zis hauv tsev, tus nqi ntawm cov kav dej silicon carbide tau txo qis heev, thiab lawv kuj tuaj yeem hloov kho rau cov teb tshiab xws li lub zog hydrogen thiab aerospace los ntawm cov txheej txheem tshuaj lom neeg. Qhov 'Diamond Warrior' no hauv cov kav dej kev lag luam siv nws lub zog los tiv thaiv kev ua haujlwm ruaj khov ntawm ntau yam kev lag luam.
Lub sijhawm tshaj tawm: Lub Kaum Hli-15-2025