Thaum tshav kub kub - Cov ntaub ntawv resistant yog qhov tseem ceeb hauv kev lag luam ntau yam, tshwj xeeb yog cov uas ua haujlwm nyob rau hauv huab cua sov huab cua sov heev. Cov ntaub ntawv no tau tsim kom muaj kev tiv thaiv kom muaj qhov kub thiab txias yam tsis tau poob lawv cov qauv kev ntseeg lossis cov khoom siv cua sov. Lawv yog qhov tseem ceeb hauv kev siv xws li ib tus kws kho tsheb thiab tsheb engineering rau cov khoom siv hluav taws xob thiab kev tsim kho. Ib qho piv txwv uas tseem ceeb ntawm tshav kub - Cov ntaub ntawv tiv taus rau lawv lub peev xwm tshwj xeeb kom ua kom muaj peev xwm ua kom dhau high kub thaum muaj kev ruaj ntseg.

Cov yam ntxwv tshwj xeeb ntawm Ceramics

Ceramics yog chav kawm ntawm inorganic, tsis yog - nws yog xim hlau cov ntaub ntawv uas feem ntau crystalline hauv xwm. Lawv tsim los ntawm cua sov thiab tom qab txias txias ntawm cov khoom siv raw, cov txheej txheem uas ua rau muaj cov khoom nyuaj thiab ruaj khov. Qhov muaj pes tsawg leeg thiab cov khoom ntawm ceramics ua rau lawv muaj cua sov zoo tshaj - resistant cov ntaub ntawv. Lawv cov qauv siv lead ua kom muab cov ntsiab lus zoo yaj, tso cai rau lawv khaws lub zog thiab tiv thaiv kev kub siab uas feem ntau hlau yuav swb. Tsis tas li ntawd, Ceramics yog cov insulators zoo heev ntawm tshav kub, uas ua rau lawv tsis muaj peev xwm hauv cov ntawv thov uas thermal rwb thaiv tsev yog qhov tseem ceeb.

● Cov ntawv thov ntawm tshav kub - Prosistant ceramics

Nyob rau hauv teb ntawm Aerospace Engineering, ceramics tau siv ntau yam vim lawv muaj peev xwm tiv taus cov cua sov ua kom sov thaum lub ntiaj teb. Piv txwv li, cov vuas luaj ceramic tau siv nyob rau saum npoo ntawm cov dav hlau los tiv thaiv lawv ntawm cov huab cua sov ntsib hauv qhov chaw thiab thaum rov nkag. Lub siab thermal kuj thiab tsawg thermal conductivity ntawm cov khoom siv no ua kom pom tias cov khoom siv sab hauv tseem ua rau muaj cua sov sab nraud.

Hauv automentalive engineering, ceramics ua tus khub pusotal nyob rau hauv kev tsim khoom ntawm cov khoom siv xws li kev tso pa tawm thiab cav qhov chaw. Cov kev ua haujlwm siab nyob rau hauv cov chaw no tas yuav tsum tau cov khoom uas tuaj yeem ua kom muaj peev xwm ua kom tau yam tsis muaj kev txhawj xeeb. Ceramics, nrog lawv cov ntsiab lus siab thiab hnav tsis kam, muab ib qho kev daws teeb meem uas txhim kho kev ua haujlwm tau zoo thiab ntev ntawm cov cav hauv tsheb.

● Lub peev xwm tom ntej ntawm tshav kub - Prosistant ceramics

Raws li kev lag luam txuas ntxiv mus evolve, qhov kev thov ua kom sov siab dua - cov ntaub ntawv resistant li ceramics tau teeb tsa. Kev tshawb fawb txuas ntxiv yog tsom rau kev txhim kho cov khoom ntawm ceramics kom nce lawv cov kev ua tau zoo thiab txo lawv tus cwj pwm, uas yog ib qho kev txwv. Kev nrhav kev txhim kho xws li kev txhim kho ntawm Ceramic dlas yog cog lus ntawm ceramics ntawm kev txhim kho kev ua kom muaj zog, nthuav lawv cov kev siv tau nyob ib puag ncig ntau.

● Xaus

Thaum tshav kub kub - cov ntaub ntawv tiv thaiv zoo li ceramics yog qhov tseem ceeb nyob hauv lub ntiaj teb uas txuas ntxiv thawb cov ciaj ciam ntawm thev naus laus zis. Lawv cov khoom tshwj xeeb ua rau lawv haum rau ntau daim ntawv thov kub siab (cov khoom siv tshuaj tiv thaiv thiab txhim kho kev ua haujlwm. Raws li kev tshawb nrhiav thiab kev txhim kho hauv thaj chaw no tau nce mus, peb tuaj yeem npaj siab tias cov ntaub ntawv ntau dua uas yuav tsav tsheb tshiab hla kev tsim kho ntau ntau yam kev lag luam. Cov kev txhawb nqa tsis yog tsuas yog cog lus ua tau zoo thiab muaj kev nyab xeeb hauv cov ntawv thov uas twb muaj lawm uas tuaj yeem ua haujlwm raws li cov xwm txheej yav dhau los xav ua tsis tau.

Thaum txiav txim siab cov ntaub ntawv rau cov ntawv thov uas xav tau cov cua sov siab, ntau tus neeg sib tw sawv tawm vim lawv cov khoom siv hluav taws xob tshwj xeeb. Hauv kev lag luam xws li Aerospace rau cov khoom siv hluav taws xob, cov kev xaiv ntawm cov khoom ua si yog lub luag haujlwm tseem ceeb hauv kev ua tau zoo thiab kev nyab xeeb. Ntawm no yog cov ncauj lus kom ntxaws txog qee cov cua sov ntau tshaj plaws - Cov ntaub ntawv tiv thaiv muaj niaj hnub no.

Nkag Siab Tshav Kub Kub Ua Hauv Cov Ntaub Ntawv

Thaum tshav kub kub ua haujlwm nyob rau hauv cov ntaub ntawv yog lub peev xwm los tswj kev ncaj ncees thiab ua haujlwm ncaj ncees thaum raug rau qhov kub. Cov cuab yeej no tseem ceeb hauv cov ntawv thov uas cov ntaub ntawv muaj tshwm sim rau cov xwm txheej huab, xws li hnab cav, cov cub hluav taws xob thiab siab - Kev ua tau zoo hluav taws xob. Thaum tshav kub kub - Cov ntaub ntawv tiv thaiv tsis yog tsuas yog tiv thaiv kub hloov tab sis kuj tseem muaj kev tiv thaiv thermal, yog li ua kom muaj kev cia siab thiab muaj sia nyob hauv qhov chaw hnyav.

Sab saum toj cua sov - resistant cov ntaub ntawv

Ob peb cov ntaub ntawv muaj npe nrov rau lawv lub peev xwm kom dhau high kub:

1. Ceramics
Ceramics yog ib qho ntawm ntau tshaj tshav kub - resistant cov ntaub ntawv muaj. Tau ua ntawm inorganic thiab tsis yog - nws yog xim hlau cov ntaub ntawv, ceramics mus txog kev kub siab tshaj 1,500 degrees Celsius. Lawv tau dav siv hauv cov ntawv thov uas zoo li cov txheej txheem hluav taws xob thiab cov thermal teeb meem txheej txheem. Lawv cov qauv crystalline tso cai rau lawv kom muaj zog thiab rigidity txawm nyob hauv siab thermal kev ntxhov siab. Txawm li cas los xij, ceramics tuaj yeem tawg, uas yog qhov kev txiav txim siab hauv lawv daim ntawv thov.

2. Tungsten
Raws li ib qho ntawm qhov siab tshaj plaws melting potse hlau, Tungsten tuaj yeem tiv taus kub txog li 3,422 degrees Celsius. Nws lub tshav kub tsis kam ua rau nws tsis muaj hluav taws xob thiab kev lag luam aerospace. Tungsten feem ntau siv nyob rau hauv siab - ib puag ncig kub, suav nrog foob pob hluav taws xob thiab lub teeb taws teeb ua kom zoo. Nws cov teeb meem tseem ceeb yog nws qhov ntom ntom thiab qhov hnyav, uas qee zaum txwv nws siv.

3. Tantalum Carbide thiab Hafnium Carbide
Cov ntaub ntawv no muaj cov ntsiab lus melting tshaj 4,000 qib Celsius, tso lawv ntawm cov cua sov tshaj plaws ntxiv rau kev tshawb fawb. TANTALUM carbide thiab hafnium carbide feem ntau siv nyob rau hauv cov ntawv thov ua kom muaj kev tiv thaiv huab cua sov thiab cua sov ntawm cov cuab yeej ua kom sov.

Cov ntawv thov thiab txiav txim siab

Thaum tshav kub kub - Cov ntaub ntawv tiv taus tau txiav rau cov ntawv thov tshwj xeeb nyob ntawm lawv lub zog cua sov, tshuab zog, thiab tus nqi - ua tau zoo. Thermal resistant cov ntaub ntawv tsim khoom yog tas mus li tshiab los tsim cov ntaub ntawv uas tsis yog siv cov txiaj ntsig cua sov tab sis kuj muaj cov txiaj ntsig ntxiv thiab lub teeb yuag.

Kev xaiv cov khoom tsim nyog suav nrog kev nkag siab txog cov kev cai tshwj xeeb, xws li qhov kev mob ib puag ncig, ib puag ncig, thiab kev ntxhov siab thiab tshuab kev ntxhov siab. Nws tseem yog qhov tseem ceeb los xav txog tus nqi - cov txiaj ntsig ntawm cov khoom siv hauv kev sib raug zoo rau nws cov txiaj ntsig kev ua haujlwm kom ntseeg tau tias muaj kev lag luam siv tau.

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Kev tshawb xyuas cov ntaub ntawv uas tuaj yeem tiv taus huab cua sov tseem tsav kev tshawb fawb thiab kev tsim kho tshiab hauv cov khoom kev tshawb fawb. Ceramics, Tungsten, thiab Tungsten, thiab Tanksten, thiab cov khoom siv uas tseem ceeb tshaj plaws uas siv niaj hnub no, txhua qhov kev muab cov khoom siv tshwj xeeb ua kom haum rau cov kev siv kub siab - Kub. Los ntawm kev sib koom tes nrog thermal resistant cov ntaub ntawv tsim khoom, kev lag luam tuaj yeem tsim kev txiav cov ntaub ntawv uas tau raws li qhov xav tau ntawm kev xav tau ntawm cov thev naus laus zis thiab cov vaj tse niaj hnub. Qhov kev txhim kho tsis tu ncua tsis yog thawb cov ciaj ciam ntawm dab tsi ua tau hauv kev tsim qauv thiab kev ua haujlwm tab sis kuj tau nce qib rau kev ua haujlwm tshiab thoob plaws hauv ntau qhov chaw thoob plaws hauv ntau thaj teb.

Thaum tshav kub kub ua yog cov cuab yeej tseem ceeb hauv cov ntaub ntawv raug rau siab - ib puag ncig, xws li hauv Aerospace, tsheb, thiab kev tsim khoom lag luam, thiab kev tsim khoom lag luam, thiab tsim khoom lag luam. Nkag siab cov ntaub ntawv twg yog qhov tiv thaiv cua sov feem ntau yog ua kom muaj kev nyab xeeb, kev ua tau zoo ntawm cov khoom siv thiab kev muaj peev xwm ua rau muaj mob.

Advanced Ceramics thiab lawv cov ntawv thov

Nyob rau hauv lub realm ntawm cov khoom cua sov, kev tshaj tawm cov ceramics sawv tawm vim lawv muaj peev xwm zoo tshaj plaws los tiv thaiv kom kub thaum tswj cov qauv kev ncaj ncees. Cov lus ceramics muaj xws li cov ntaub ntawv zoo li alumina, zirconia, sivomon carbide, thiab silicon nitride. Alumina, piv txwv li, tuaj yeem ua kom muaj kev kub ntxhov ntawm 1300 txog 1600 ° C, ua rau nws zoo tagnrho rau kev siv hauv Kiln cov cuab yeej thiab cov cuab yeej txiav. Silicon carbide thiab silicon nitride, muaj ntau tshaj siv kub ntawm 1500 ° C thiab 1200 ° C thiab 1200 ° Cho thermal tsis kam thiab tshuab hluav taws xob yog lub zog. Lawv lub peev xwm los tswj hwm kev ua haujlwm hauv ib puag ncig qhov tseem ceeb ntawm ceramics hauv kev tsim cov kev siv kub siab - Kub.

Qhov tseem ceeb ntawm refractory hlau

Refractory coals, lwm qeb ntawm cov khoom cua sov, yog cov cwj pwm los ntawm lawv cov ntsiab lus zoo melting thiab muaj peev xwm khaws lub zog ntawm cov kub. Cov hlau xws li tungsten, molybdenum, tantalum, thiab niobium poob rau qeb no. Tungsten, nrog lub ntsiab lus melting, feem ntau siv hauv cov ntawv thov uas yuav tsum muaj cua sov siab heev, xws li cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob. Molybdenum thiab tantalum, nrog melting cov ntsiab lus ntawm 2623 ° C thiab 2990 ° C thiab nuclear reactors vim lawv cov hluav taws xob zoo heev. Qhov enduring ruaj khov ntawm cov hlau refractory underpins lawv cov kev siv thoob plaws hauv cov cua kub - cov tshav kub.

Lub luag haujlwm ntawm tsom iav tshwj xeeb thiab Ceramics

Cov tsom iav tshwj xeeb thiab machinuiny ceramics tseem ua si ib lub luag haujlwm tseem ceeb li cov khoom cua kub tiv thaiv ntau cov ntawv thov. Cov ntaub ntawv xws li fused silica thiab borosilicate iav, withstanding sov txog 1200 ° C thiab 500 ° C Lwm yam, yog qhov tseem ceeb hauv kev ua lag luam tshuaj lom neeg. Cov ntaub ntawv no muaj cov khoom siv zoo heev rau cov kev ua haujlwm zoo heev thiab kho qhov muag pom tseeb, tsim nyog rau cov haujlwm muaj tseeb thiab tswj cov chaw ib puag ncig. Machinable ceramics zoo li macerovel muaj ntau yam hauv kev tsim cov khoom siv kev cai uas tsis muaj kev cuam tshuam ntawm kev yooj yim ntawm machining.

Xaiv cov khoom cua kub yog txoj cai

Xaiv cov khoom siv hluav taws xob tsim nyog nyob ntawm tsis tsuas yog nyob ntawm qhov kub siab tshaj plaws cov khoom yuav tsum withstand tab sis kuj muaj kev ntxhov siab xws li, thiab tshuaj lom neeg tshuaj lom neeg. Kev Tshaj Lij Ceramics muab unmatched thermal stability thiab corrosion tsis kam, cov hlau refractory muab lub zog tsim nyog thiab kev ua tau zoo hauv cov ntawv thov tshuab kho tshuab. Cov tsom iav tshwj xeeb Choj Choj ntawm cov kab sib txawv ntawm pob tshab thiab kub tiv taus nyob rau hauv ntau cov ntawv thov kev ua haujlwm.

Hauv kev xaus, muaj kev nkag siab dav dav ntawm ntau haiv neeg tiv taus cov iav, yog qhov tseem ceeb rau txhua tus neeg koom nrog kev tsim kho cov tshuab lossis cov khoom siv rau cov ntawv thov kub siab. Cov ntaub ntawv no yog tus caj qaum ntawm kev hloov pauv hauv cov teb uas thov kev nyab xeeb tshwj xeeb, ua kom muaj kev nyab xeeb, thiab kav ntev nyob rau hauv qee qhov kev nyuaj tshaj plaws ib puag ncig kev xav.