Hauj lwm lawm
Kev piav qhia
Silicon carbide (SiC) yog cov khoom siv dav dav ntawm cov khoom siv semiconductor uas tau tshawb fawb thiab tsim kho ntau xyoo dhau los. Nws muaj cov khoom tshwj xeeb xws li thermal conductivity, siab tawg voltage thiab qis thermal expansion coefficient, uas ua rau nws zoo tagnrho rau ntau yam kev lag luam. Niaj hnub no, SiC tau tsim los siv ntau txoj hauv kev, suav nrog tshuaj vapor deposition (CVD), lub cev vapor deposition (PVD), thiab cov txheej txheem Lely hloov. Qhov blog no tshawb txog kev nce qib hauv SiC ntau lawm thiab nws cov ntawv thov tam sim no thiab muaj peev xwm.
CVD tau yog ib txoj hauv kev nrov rau kev tsim SiC. Nws koom nrog cov tshuaj tiv thaiv ntawm cov roj sib tov ntawm lub substrate nto, tsim ib txheej ntawm SiC. CVD tsim cov qauv zoo, thaj tsam loj SiC nrog cov khoom tsim tau zoo heev. PVD txoj kev yog cov txheej txheem sputtering qhov twg lub hom phiaj cov khoom (feem ntau SiC) yog bombarded nrog ions, ua rau lub SiC tshem tawm ntawm lub hom phiaj nto thiab tso rau ntawm ib tug substrate. PVD ua tau zoo SiC films nrog zoo adhesion thiab hnav tsis kam. Cov txheej txheem Lely hloov kho cuam tshuam nrog cov txheej txheem sublimation qeeb ntawm SiC crystals, uas tom qab condense mus rau qhov chaw txias dua. Cov txheej txheem no ua rau muaj kev ua siab dawb huv, loj ib qho crystals ntawm SiC.
Specification
| Qauv | Cov feem pua | |||
| 60# | SiC | F.C | Fe2O 3 | |
| 65# | 60 min | 15-20 | 8-12 | 3.5 max |
| 70# | 65 feeb | 15-20 | 8-12 | 3.5 max |
| 75# | 70 feeb | 15-20 | 8-12 | 3.5 max |
| 80# | 75 feeb | 15-20 | 8-12 | 3.5 max |
| 85# | 80 min | 3-6 | 3.5 max | |
| 90# | 85 nqi | 2.5 max | 3.5 max | |
| 95# | 90 min | 1 0max | 1.2 max | |
| 97# | 95 nqi | 0.6 max | 1.2 max | |
SiC muaj ntau daim ntawv thov kev lag luam, suav nrog hauv hluav taws xob hluav taws xob, cov cuab yeej abrasive thiab txiav, thiab cov khoom siv refractory. Hauv hluav taws xob hluav taws xob, SiC tau pom muaj peev xwm tseem ceeb hauv kev siv hluav taws xob siab thiab kub kub. SiC cov khoom siv tuaj yeem ua haujlwm ntawm cov zaus ntau zaus nrog kev ua kom muaj zog thiab ua kom muaj cua sov tsawg dua li cov khoom siv silicon, ua rau lawv zoo tagnrho rau cov khoom siv hluav taws xob txuas ntxiv mus. Hauv kev lag luam abrasive, SiC yog siv los tsim cov cuab yeej txiav nrog tshwj xeeb hardness thiab durability. SiC abrasives kuj tseem siv rau hauv kev tsim cov khoom siv nto moo xws li kev sib tsoo log thiab ntawv xuab zeb. SiC lub siab thermal conductivity thiab qis coefficient ntawm thermal expansion ua rau nws yog ib qho zoo tagnrho cov ntaub ntawv rau high-temperature refractory daim ntaub ntawv xws li rauv hauv ob sab phlu thiab lub cub tawg Cheebtsam.
Kev lag luam tsheb yog ib qho tseem ceeb tshaj plaws thiab muaj kev vam meej ntawm SiC. SiC-raws li lub zog hluav taws xob tuaj yeem txo qhov hnyav tag nrho thiab qhov loj ntawm lub tshuab hluav taws xob hauv tsheb thaum nce lawv cov kev ua tau zoo. Kev ua tau zoo thiab lub zog ceev ntawm SiC-raws li tshuab tuaj yeem ua rau muaj kev txuag hluav taws xob tseem ceeb hauv hluav taws xob thiab tsheb sib xyaw.
SiC cov thev naus laus zis tau hloov pauv ntau xyoo dhau los, ua rau muaj kev lag luam loj loj ntawm SiC wafers thiab crystals. Raws li kev nce qib ntxiv hauv SiC ntau lawm, tus nqi ntawm SiC-raws li thev naus laus zis yuav txo qis, ua rau lawv nkag mus rau ntau yam kev lag luam.
Hauv kev xaus, SiC ntau lawm tau los ntev hauv ob peb lub xyoo dhau los, ua rau kev tsim cov txheej txheem SiC zoo, cov yeeb yaj kiab, thiab cov muaju. SiC cov khoom tshwj xeeb thiab ntau daim ntawv thov kev lag luam ua rau nws muaj txiaj ntsig zoo hauv ntau qhov kev lag luam. Raws li SiC cov nqi tsim khoom txuas ntxiv poob qis, kev lag luam ntau dua yuav pib siv SiC-raws li thev naus laus zis, ua rau lub neej huv si, muaj zog dua yav tom ntej.
FAQ
Q: Koj puas yog tuam txhab lag luam lossis chaw tsim khoom?
A: Peb yog cov chaw tsim khoom nyob hauv Henan Tuam Tshoj. Tag nrho peb cov neeg siv khoom los ntawm tsev lossis txawv teb chaws. tos ntsoov rau koj mus ntsib.
Q: Koj qhov zoo yog dab tsi?
A: Peb muaj peb tus kheej lub Hoobkas, cov neeg ua haujlwm zoo nkauj thiab cov kws tshaj lij kev tsim khoom thiab kev ua haujlwm thiab pab pawg muag khoom. Zoo tuaj yeem lav. Peb muaj kev nplua nuj nyob hauv metallurgical steelmaking teb.
Q: Koj puas tuaj yeem muab cov qauv dawb?
A: Yog lawm, peb tuaj yeem muab cov qauv dawb.
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