Silicon Carbide (SiC) tau ua kev zoo siab rau nws cov khoom siv tshuaj ruaj khov, thermal conductivity, tsis tshua muaj thermal expansion coefficient, thiab tshwj xeeb kev puas tsuaj. Kev ua haujlwm dav dav hauv thaj chaw ib txwm muaj xws li cov ntaub ntawv hnav-tiv taus, cov txheej txheem ceramics, refractories, thiab metallurgy, SiC kuj tseem ua cov khoom tseem ceeb hauv kev lag luam hnub ci, tshwj xeeb hauv kev tsim cov crystalline silicon wafers.
I. Silicon Carbide yog dab tsi
Silicon Carbide, hu ua carborundum, yog hexagonal crystal compound nrog lub ntiajteb txawj nqus ntawm 3.20-3.25 thiab Mohs hardness ntawm 9.5. Kev lag luam tsim SiC tau muab faib ua cov xim dub thiab ntsuab.
- Dub Silicon Carbide:Muaj kwv yees li 95% SiC thiab feem ntau yog siv rau cov ntaub ntawv uas tsis muaj zog tensile, xws li iav, ceramics, refractory cov ntaub ntawv, cam khwb cia hlau, thiab non-ferrous hlau.
- Green Silicon Carbide:Muaj ntau dua 97% SiC thiab muaj npe nrov rau nws tus kheej-sharpening zog, feem ntau siv rau kev ua cov alloys nyuaj, titanium alloys, thiab kho qhov muag iav, nrog rau honing lub tog raj kheej liner thiab precision sib tsoo high-speed steel cov cuab yeej.
II. Kev tsim cov txheej txheem ntawm Silicon Carbide
Silicon Carbide feem ntau yog synthesized vim nws tsis tshua muaj nyob rau hauv cov xwm. Cov txheej txheem tsim khoom suav nrog kev sib xyaw quartz xuab zeb nrog cov roj av coke lossis cov silica zoo, tom qab ntawd muab cov khoom sib xyaw rau hauv lub cub hluav taws xob ntawm qhov kub ntawm 2000 txog 2500 degree. Qhov sib npaug tshwj xeeb yog:
SiO2 + 3C → SiC + 2CO (enthalpy change: -46.8KJ or 11.20 kcal)
Qhov tshwm sim SiC blocks raug crushing, acid-base ntxuav, sib nqus sib nqus, thiab kev tshuaj ntsuam los yog dej xaiv los tsim ntau qib ntawm SiC.
III. Kev siv ntawm Silicon Carbide
Silicon Carbide boasts ib tug plethora ntawm daim ntawv thov nyob rau hauv ntau yam lag luam:
- Kev Tsim Kho thiab Ceramics Kev Lag Luam:Siv rau kev tsim cov rooj tog nyias nyias, SiC txo qhov ntim ntawm qhov cub, txhim kho lub peev xwm thauj khoom thiab cov khoom lag luam zoo, thiab ua kom luv luv. SiC ceramics tseem paub txog lawv qhov zoo tshaj plaws kub-kub, ua rau lawv zoo tagnrho rau siv hauv kilns thiab furnaces.
- Non-ferrous Hlau Smelting:Ua haujlwm rau nws qhov kub thiab txias tsis kam, lub zog, thermal conductivity zoo, thiab kev tiv thaiv kev cuam tshuam, SiC yog cov khoom siv rau cov khoom siv cua kub tsis ncaj. Cov ntawv thov suav nrog retort distillation furnaces, distillation furnace trays, aluminium electrolytic hlwb, tooj liab melting rauv linings, thiab arc-shaped daim hlau rau zinc hmoov furnaces.
- Kev lag luam hlau:Leveraging SiC's corrosion resistance, thermal shock resistance, and abrasion resistance, SiC yog siv los ua kab loj loj rauv taws, ua kom lawv lub neej ua haujlwm ntev.
- Metallurgical Ore Hnav Khaub Ncaws Kev Lag Luam:Nrog lub hardness thib ob tsuas yog pob zeb diamond, SiC nthuav tawm muaj zog hnav tsis kam, ua rau nws yog ib qho khoom siv zoo tshaj plaws rau cov kav dej, impellers, twj tso kua mis vaj tse, cyclones, thiab ore thoob hauv ob sab phlu. Nws qhov hnav tsis kam yog 5-20 npaug siab dua li cov hlau cam khwb cia thiab roj hmab, ua rau lawv lub neej ua haujlwm ntev.
- Cov ntaub ntawv txuag hluav taws xob:SiC qhov zoo tshaj plaws thermal conductivity thiab thermal stability ua rau nws yog ib qho khoom siv zoo tshaj plaws rau kev tsim cov khoom siv hluav taws xob, txo cov roj noj los ntawm 20% thiab txuag 35% roj. SiC-raws li cov ntaub ntawv tshiab kuj tau siv dav hauv aerospace. Tuam Tshoj tus thawj Mars rover tej zaum yuav raug tsim siv txhuas-raws li silicon carbide thiab lwm yam ntaub ntawv.
- Semiconductor thiab Photovoltaic Industries:Nrog nws lub zog loj bandgap, siab tawg hluav taws xob teb, siab thermal conductivity, thiab siab electron saturation drift ceev, SiC yog suav hais tias yog cov khoom zoo tshaj plaws nyob rau hauv lub semiconductor teb. Cov ntawv thov muaj xws li xiav lub teeb-emitting diodes, ultraviolet detectors, high-voltage diodes, high-power microwave li, thiab ntau yam high-temperature resistant khoom siv.
IV. Hais txog Kev Sib Tw thiab Kev Sib Koom Tes
Raws li tus neeg muag khoom ntawm cov khoom siv silicon carbide, Anyang Jinyuan lees paub qhov tseem ceeb ntawm cov neeg siv khoom xav tau thiab kev sib tw ua lag luam. Txawm hais tias kev lag luam saturation thiab overcapacity, peb tau cog lus los txhim kho tus nqi ntawm peb cov khoom los ntawm kev kho cov qauv kev lag luam, siv cov thev naus laus zis siab, thiab ua ntej cov khoom zoo. Tsis tas li ntawd, peb lees paub qhov cuam tshuam tseem ceeb ntawm kev txhawj xeeb ntawm ib puag ncig ntawm kev lag luam kev lag luam thiab mob siab rau kev siv cov kev ntsuas zoo los txo cov pa phem. Los ntawm kev sib koom tes nrog peb cov neeg siv khoom, peb siv zog los kov yeej cov kev sib tw, tsav kev txhim kho kom ruaj khov hauv kev lag luam silicon carbide, thiab xa cov kev tsim kho tshiab thiab muaj txiaj ntsig rau kev lag luam.
Ntsiab lus:Silicon Carbide, SIC, Dub SIC, Ntsuab Silicon Carbide, Dub Silicon Carbide, Metallurgy, Steelmaking
