Silicon Carbide

ZHEN AN: Koj tus kws tshaj lij Silicon Carbide Supplier

ZhenAn yog lub koom haum uas koom ua ke ntau lawm, ua, muag, ntshuam thiab xa tawm cov haujlwm. Npog 30,000 square meter hneev taw, nws tsim thiab muag ntau tshaj 150,000 tonnes ntawm cov khoom txhua xyoo, thiab tau nruab nrog tag nrho cov cuab yeej tsim khoom tshiab. Nrog peb caug xyoo ntawm kev txawj ntse, peb yog ib tug neeg tsim khoom thiab cov khoom siv raw khoom ntawm metallurgical raw khoom, mob siab rau muab siab - Ferro Alloys, Silicon Hlau thiab Silicon Hlau Powder, Ferro Silicon, Ferro Vanadium, Ferro Titanium, thiab lwm yam khoom. Peb ib txwm muab cov khoom lag luam zoo thiab tus nqi qis.

Vim Li Cas Xaiv Peb

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Pab neeg tshaj lij
Peb muaj 26 tus kws tshaj lij engineers uas muaj ntau xyoo ntawm kev paub hauv metallurgy ntau lawm thiab daim ntawv thov thiab tuaj yeem muab cov kev daws teeb meem rau cov neeg siv khoom sib txawv. Peb pab neeg muag khoom tau paub txog kev lag luam kev lag luam thiab kev lag luam thiab tuaj yeem muab cov neeg siv khoom nrog cov lus qhia thiab kev txhawb nqa.

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Siab Zoo
Nrog rau kev nkag siab tob txog kev lag luam metallurgical, peb pab neeg ua haujlwm tau zoo ntawm kev tuav txhua yam ntawm kev tsim khoom thiab kev tswj kom zoo. Peb cov neeg soj ntsuam zoo nruj tswj hwm qhov zoo ntawm txhua qhov txuas kom ntseeg tau tias txhua pawg ntawm cov khoom ua tau raws li cov qauv thoob ntiaj teb.

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Khoom siv Advanced
Nruab nrog tag nrho cov cuab yeej tsim tawm tshiab, lub tuam txhab muaj 2 cov chaw tsim khoom, 8 12500KW submerged arc rauv thiab ntau cov khoom siv crushing ntau lawm kab.

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Kev lag luam dav
Peb tsis tsuas yog ua tau raws li cov kev xav tau ntawm Tuam Tshoj steel tuam txhab uas muag tab sis kuj xa tawm peb cov khoom mus rau 150 lub teb chaws thiab cheeb tsam xws li Nyiv, Kaus Lim Qab Teb, Is Nrias teb, Europe, thiab Tebchaws Meskas.

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Zoo meej Service
Tag nrho tom qab -muag kev thov yuav raug teb rau hauv 24 teev. Kaw ua raws- txog ntawm txhua qhov kev txiav txim los ntawm tus neeg tshwj xeeb thiab khaws cov neeg siv khoom paub raws sijhawm. Peb muab kev pabcuam sai thiab sov rau koj thoob plaws hauv tag nrho cov txheej txheem.

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Kev xa khoom sai
Peb muaj lub chaw ua haujlwm zoo thiab ua haujlwm tau zoo uas tshwj xeeb hauv cov ntaub ntawv, ntim thiab xa khoom los muab cov kev pabcuam txhim khu kev qha rau cov neeg siv khoom thoob ntiaj teb, ua kom cov khoom xa tuaj raws sijhawm thiab ntawm - sijhawm xa khoom mus rau qhov chaw.

Tsev 12 3 4 5 6 7 Rau sab kawg 1/12

Silicon Carbide yog dab tsi?

Silicon carbide, tseem hu ua SiC, yog cov khoom siv semiconductor uas muaj cov ntshiab silicon thiab cov pa roj carbon ntshiab. Koj tuaj yeem dope SiC nrog nitrogen lossis phosphorus los ua ib qho n-hom semiconductor lossis dope nrog beryllium, boron, aluminium, lossis gallium los ua ap-hom semiconductor. Tsaus nti, ntau cov qauv ntawm silicon carbide feem ntau suav nrog cov hlau thiab cov pa roj carbon impurities, tab sis cov ntshiab SiC crystals tsis muaj xim thiab tsim thaum silicon carbide sublimes ntawm 2700 degrees Celsius.

Silicon Carbide Ua li cas?

Txoj Kev Lely
Txoj kev tsim cov silicon carbide yooj yim tshaj plaws yog melting silica xuab zeb thiab carbon, xws li thee, ntawm qhov kub thiab txias - txog 2500 degrees Celsius. Thaum lub sijhawm ua haujlwm no, granite crucible heats mus rau qhov kub siab heev, feem ntau yog los ntawm txoj kev induction, mus rau sublimate silicon carbide hmoov. Ib tug graphite pas nrig nrog qis kub ncua nyob rau hauv lub gaseous sib tov, uas inherently tso cai rau cov ntshiab silicon carbide tso nyiaj thiab tsim muaju.

Tshuaj Vapor Deposition
Xwb, cov chaw tsim khoom loj hlob cubic SiC siv cov tshuaj vapor deposition, uas feem ntau yog siv rau hauv cov pa roj carbon-raws li cov txheej txheem synthesis thiab siv hauv kev lag luam semiconductor. Nyob rau hauv txoj kev no, cov tshuaj tshwj xeeb sib xyaw ntawm cov roj nkag mus rau hauv lub tshuab nqus tsev thiab sib txuas ua ntej tso rau hauv lub substrate.

Qhov zoo ntawm Silicon Carbide

Siab dua tawg Voltage
SiC muaj lub zog tawg ntau dua piv rau silicon, uas tso cai rau kev tsim cov khoom siv hluav taws xob ntau dua. SiC ua haujlwm ntawm siab tshaj 10kV, tseem ceeb tshaj qhov uas tam sim no siv tau. SiC cov khoom siv ntsuas ntawm 1,200V thiab 1,700V muaj.

Siab dua thermal conductivity
SiC muaj cov thermal conductivity ntau dua piv rau silicon, uas ua rau kev txhim kho thermal tswj thiab txo lub zog poob. Qhov kev ua tau zoo ntawm silicon ua rau qhov kub thiab txias dua, thaum SiC yog qhov ruaj khov dua.

Ua haujlwm kub siab dua
SiC tuaj yeem ua haujlwm ntawm qhov kub siab dua piv rau silicon, uas ua rau muaj kev ntseeg tau zoo dua qub thiab siv lub neej ntev dua. Ib qho khoom siv silicon feem ntau dhau - teev nyob rau hauv chav tsev kub kom tswj tau qhov tshwj xeeb ntawm qhov kub siab dua. Feem ntau, SiC cov cuab yeej nrog ib nrab ntawm qhov ntsuas tam sim no yuav ua haujlwm tib yam li silicon IGBT vim tias SiC muaj kev ruaj khov dua li qhov kub siab dua thiab tsis xav tau qhov tseem ceeb derating.

Higher Switching zaus
Ntau zaus txhais tau tias txo qhov loj me thiab qhov hnyav ntawm cov hlau nplaum vim tias qhov tseem ceeb ntawm cov khoom hauv transformer LC lim tau qis dua. SiC tuaj yeem hloov mus rau thiab tawm sai dua piv rau silicon, uas ua rau muaj kev txhim kho lub zog thiab kev ua haujlwm zoo hauv kev siv hluav taws xob hluav taws xob.

Lower Forward Voltage poob
SiC muaj qhov qis qis dua rau pem hauv ntej piv rau silicon, qhov tsis tuaj yeem virtual ntawm tus Tsov tus tw tam sim no tso cai rau qhov nrawm dua thiab poob qis dua. Txij li thaum muaj lub zog tsawg dua kom tawg, SiC cov cuab yeej tuaj yeem hloov pauv ntawm ntau zaus thiab txhim kho kev ua haujlwm.

Qee hom khoom siv Silicon Carbide

Silicon Carbide hmoov
Silicon carbide hmoov yog cov khoom siv feem ntau siv. Silicon carbide hmoov tuaj yeem tsim los ntawm kev ua haujlwm thiab pyrolyzing vaporized polysiloxanes hauv ib kauj ruam cua sov, uas tsim cov hmoov silicon carbide. Cov txheej txheem no ncaj nraim thiab pheej yig. Txoj kev no yeej muaj kev qhia txog lub vaporized polysiloxane rau hauv cov tshuaj tiv thaiv chamber. Lub polysiloxane vapor yog tom qab ntawd ua kom hnov mob ntawm qhov kub ntawm li 2900℃F rau ib lub sij hawm txaus los hloov cov polysiloxane vapor rau hauv silicon carbide hmoov, uas yog tom qab ntawd sau. Silicon carbide hmoov ua cov hmoov sib tsoo rau kev sib tsoo zoo lossis ntxhib polishing semiconductors, ceramics, thiab ferrous cov ntaub ntawv. Nws kuj tseem siv tau rau shaping, honing, thiab polishing lwm yam ntaub ntawv.

Silicon Carbide Sharpening Pob zeb
Ib daim ntawv thov ntawm silicon carbide sharpening pob zeb yog rau cov sharpening riam ua los ntawm ib tug nyuaj stainless hlau. Silicon carbide sharpening pob zeb txiav aggressively. Feem ntau, silicon carbide pob zeb tuaj nyob rau hauv coarser grit thiab yog haum rau thawj coarse sharpening. Silicon carbide pob zeb tau pom tias muaj Mohs Hardness ntawm 9-10. Silicon carbide sharpening pob zeb tuaj yeem siv nrog dej lossis roj. Cov pob zeb roj, piv txwv li, tuaj yeem tsim los ntawm ntau hom ntaub ntawv, uas yog novaculite, aluminium oxide, thiab silicon carbide, tab sis qhov ceev tshaj plaws txiav roj pob zeb yog silicon carbide pob zeb. Thaum siv dej nrog cov pob zeb, nws yuav pab kom muaj ib co tshuaj ntxuav tais diav nrog nws, yog li nws tsis yog tsau rau hauv lub qhov hws tam sim ntawd.

Silicon Carbide Grit
Silicon Carbide Grit yog qhov nyuaj tshaj plaws blasting media muaj. Cov khoom zoo no - cov khoom zoo yog tsim los ua ib qho nyuaj, blocky, angular grain zoo. Cov xov xwm no yuav tawg tsis tu ncua uas ua rau ntse, txiav ntug. Lub hardness ntawm Silicon Carbide Grit tso cai rau luv luv lub sij hawm moj tej tawg txheeb ze rau softer medias. Silicon Carbide Grit tuaj yeem siv ntau zaus hauv cov ntawv thov siv tumblers (xws li pob zeb tumbling). Raws li cov xov xwm maj mam tawg, ntxiv 'tshiab' xov xwm yuav tsim ib qho kev sib xyaw ntawm qhov ntau thiab tsawg rau kev tu thiab polishing zoo heev.

Dab tsi yog Kev Siv Silicon Carbide?

Silicon Carbide siv nyob rau hauv tub rog Bulletproof Armor
Silicon carbide yog siv los tsim cov khoom siv phom sij. Cov cuab yeej ntawm no compound uas ua rau nws yuav siv tau rau xws li ib lub hom phiaj yog nws hardness. Cov mos txwv thiab lwm yam khoom tsim kev puas tsuaj yuav tsum tau sib cav nrog cov tawv ceramic blocks uas silicon carbide cov ntaub ntawv. Cov mos txwv tsis tuaj yeem nkag mus rau cov blocks ceramic.

Silicon Carbide siv nyob rau hauv semiconductors
Silicon carbide ua ib qho semiconductor thaum dopants ntxiv rau nws. Dopants zoo li boron thiab txhuas ntxiv rau silicon carbide ua rau nws ua ap-hom semiconductor. Ntawm qhov tod tes, dopants xws li nitrogen thiab phosphorus ntxiv rau silicon carbide ua rau nws dhau los ua n-hom semiconductor. Koj tuaj yeem nyeem cov ntawv no kom paub ntau ntxiv txog qhov sib txawv ntawm p-hom semiconductors & n-hom semiconductors.

Silicon Carbide siv hauv Abrasives
Silicon carbide feem ntau yog siv los ua abrasive vim tias nws nyuaj npaum li cas. Nws yog siv rau hauv kev tsim cov khoom sib tsoo, cov cuab yeej txiav, thiab cov ntawv xuab zeb. Silicon carbide abrasives feem ntau pheej yig dua li lwm cov abrasives zoo sib xws. Cov abrasives yog siv los zom cov khoom xws li steel, aluminium, cam khwb cia hlau, thiab roj hmab.

Silicon Carbide siv nyob rau hauv hluav taws xob tsheb
Silicon carbide yog qhov kev xaiv zoo dua ntawm silicon rau lub zog hluav taws xob tsheb. Cov tsheb fais fab uas siv los ntawm silicon carbide yog qhov ua tau zoo thiab raug nqi - zoo. Tam sim no, ntau lub tuam txhab paub zoo tau siv silicon carbide los txhim kho kev ua haujlwm thiab ntau yam thaum tsim hluav taws xob tsheb, xws li Tesla.

Silicon Carbide siv hauv cov hniav nyiaj hniav kub
Cov qauv zoo ib yam li pob zeb diamond, tseem ntau dua ci ntsa iab, pheej yig dua, ruaj dua, thiab sib zog dua pob zeb diamond, silicon carbide yog qhov zoo- tsim nyog lwm txoj rau pob zeb diamond hauv kev lag luam hniav nyiaj hniav kub.

Silicon Carbide siv hauv roj
Ntxiv nrog rau lwm yam kev siv, silicon carbide yog siv los ua roj. Nws yog siv los ua roj hauv kev tsim steel thiab tsim cov hlau ntshiab dua li lwm cov roj. Nws tseem yog ib qho pheej yig dua thiab ntau dua ib puag ncig- roj tus phooj ywg.

Silicon Carbide siv nyob rau hauv LEDs
Thawj txheej ntawm lub teeb -emitting diodes (LEDs) yuav raug tsim los ntawm silicon carbide technology. Nws tau siv los tsim cov xiav, liab, thiab daj LEDs. LEDs yog siv nyob rau hauv TV, zaub boards, thiab computers.

Dab tsi yog Cov Khoom Siv Tshuaj Ntawm Silicon Carbide?

Silicon carbide (SiC) yog cov tshuaj sib xyaw ua ke ntawm carbon thiab silicon. Nws yog lub npe hu rau nws cov khoom zoo heev abrasive thiab tau siv los tsim kev sib tsoo log thiab lwm yam khoom siv abrasive rau ntau tshaj ib puas xyoo. Txawm li cas los xij, nws kuj tau raug tsim los rau hauv qib siab - zoo tshaj plaws qib ceramic nrog ntau yam kev siv.

Ib qho ntawm cov khoom tseem ceeb ntawm silicon carbide yog nws cov tshuaj tiv thaiv rau cov kua qaub thiab cov hauv paus. Nws tsis yaj hauv cov kua qaub lossis cov hauv paus tab sis tuaj yeem tawm tsam los ntawm alkaline melts thiab qee cov hlau thiab hlau oxide melts. Nws tuaj yeem tiv taus qhov kub txog li 1,500℃hauv ib qho roj inert lossis txo qhov cua.

In terms of physical properties, silicon carbide has a low density, high strength, and low thermal expansion. Nws kuj muaj thermal conductivity, siab hardness, thiab siab elastic modulus. Cov khoom no ua rau nws haum rau ntau yam kev siv, xws li abrasives, refractories, ceramics, thiab siab -cov khoom ua tau zoo.

Silicon carbide yog inert heev thiab tsis tawm tsam los ntawm acids, alkalis, los yog molten ntsev mus txog 800 degree. Nyob rau hauv cov huab cua, nws tsim ib tug tiv thaiv silicon oxide txheej ntawm 1200 degree, tso cai rau nws siv nyob rau hauv kub txog li 1600 degree. Nws cov thermal conductivity thiab tsis tshua muaj thermal expansion, ua ke nrog nws lub zog siab, muab nws tshwj xeeb thermal shock kuj.

Cov khoom siv kuj yog cov khoom siv hluav taws xob thiab pom cov ntawv thov hauv cov cua sov, cov nplaim hluav taws, thiab cov khoom siv hluav taws xob. Nws cov tshuaj purity thiab tsis kam rau tshuaj tua kab mob ntawm qhov kub thiab txias ua rau nws nrov rau siv nyob rau hauv semiconductor furnaces li wafer tais txhawb thiab paddles. Tsis tas li ntawd, nws yog siv nyob rau hauv cov cua kub tsis kam rau hluav taws xob furnaces thiab ua ib feem tseem ceeb ntawm cov thermistor thiab varistors.

Nyob rau hauv cov nqe lus ntawm thermal zog, silicon carbide muaj ib tug kuj siab thermal conductivity thiab ib tug tsawg coefficient ntawm thermal expansion piv rau lwm yam ceramics. Qhov no ua rau muaj txiaj ntsig zoo thermal poob siab, ua rau nws tsim nyog rau cov ntawv thov qhov kub hloov pauv sai.

Physical thiab Mechanical Properties

Qhov ntom
Qhov ntom ntom ntawm ntau yam silicon carbide crystalline cov ntaub ntawv yog ze heev, feem ntau suav tias yog 3.20 g / m³, thiab qhov ntom ntom ntawm nws cov silicon carbide abrasives yog nyob nruab nrab ntawm 1.2 - 1.6 g / m³, qhov siab ntawm uas nyob ntawm seb qhov loj me me, qhov loj me me thiab cov duab particle.

Hardness
Mohs hardness ntawm silicon carbide yog 9.2, Weiss microdensity hardness yog 3000-3300 kg / m³, lub Nuptial hardness yog 2670-2815 kg / mm, uas yog siab tshaj corundum thiab thib ob tsuas yog pob zeb diamond, cubic boron nitride thiab kaum abrasive tsis kam ntawm cov hlau, thiab tsuas yog ob npaug rau pob zeb diamond. hnav-resistant cam khwb cia hlau.

Thermal conductivity
Lub thermal conductivity ntawm silicon carbide cov khoom yog siab heev, lub thermal conductivity ntawm ntau tshaj 12, lub coefficient ntawm thermal expansion yog me me, siab thermal shock kuj, yog ib tug siab - cov ntaub ntawv zoo refractory.

Silicon Carbide Cia ceev faj

Orderly cia, tib batch tooj kom deb li deb tau nyob rau hauv kab, kom tsis txhob ua yuam kev nyob rau hauv tus txheej txheem ntawm noj cov khoom.
Silicon carbide micro hmoov muaj lub zog nqus dej noo, sim kom tsis txhob tshem cov ya raws - pov thawj zaj duab xis cia; Qhov no tuaj yeem zam kev ya raws agglomeration, shorten lub sij hawm ziab.
Raws li qhov ua tau kom siv lub hauv paus ntsiab lus ntawm thawj- ua ntej- tawm cov khoom, kom tsis txhob clumping ntawm raw khoom vim lub sij hawm cia ntau dhau.
Yog tias ultra- zoo silicon carbide hmoov nyob rau hauv kev thauj mus los ntim ntim, sim khaws cia nyias kom tsis txhob muaj plua plav paug.
Nws raug pom zoo tias lub tsev khaws khoom kom deb li deb tau kaw, khaws cia cais, thiab xyuam xim rau cov dej noo, cua thiab nag.

Silicon Vs. Silicon Carbide

Silicon thiab Silicon Carbide yog dab tsi?

Thaum sib xyaw ua ke hauv nws daim ntawv purest, silicon tsim cov qauv crystalline uas ib leeg silicon atom tsim ib daim ntawv cog lus nrog plaub lwm cov atoms uas nyob ib sab silicon. Qhov no silicon hauv paus substrate tuaj yeem raug doped nrog ntau lwm cov ntsiab lus los tsim cov semiconductor junctions ntawm lub wafer ntawm silicon substrate.

Silicon carbide, ntawm qhov tod tes, yog kev sib xyaw ntawm silicon thiab carbon atoms uas tsim ntau yam qauv crystalline. Cov qauv siv dav dav tshaj plaws rau kev siv semiconductor yog 3C, 4C, thiab 6H silicon carbide, txhua tus muaj cov khoom hluav taws xob sib txawv thiab qhov zoo thaum doped nrog ntau yam. Silicon wafers loj hlob mus txog 8-12 ntiv tes thiab tsim los ntawm ib theem molten ntawm ntshiab silicon. Silicon carbide, txawm li cas los xij, feem ntau synthesizes los ntawm vapor theem thiab tuaj yeem loj hlob mus txog rau ntiv tes.

Silicon & Silicon Carbide Properties: Lub zog thiab ceev
Muab nws lub peev xwm los tiv thaiv hluav taws xob ntau dua, cov khoom siv silicon carbide substrate tuaj yeem tiv taus qhov hluav taws xob ntau dua ua ntej tawg. Silicon muaj qhov tawg ntawm ib ncig ntawm 600V, thaum silicon carbide tuaj yeem tiv taus qhov hluav taws xob 5-10 npaug siab dua. Qhov no txhais tau li cas hauv kev xyaum yog tias cov ntawv thov hluav taws xob siab yuav tuaj yeem siv cov tshuab hluav taws xob semiconductor, lossis cov cuab yeej ntawm qhov sib txawv ntawm qhov sib txawv tuaj yeem tau ze li kaum zaus me dua. Silicon carbide tuaj yeem hloov ntawm ze li kaum npaug ntawm tus nqi ntawm silicon, uas ua rau muaj kev tswj xyuas me me.

Silicon & Silicon Carbide Daim Ntawv Thov hauv Ntiaj Teb tiag
Ib qho piv txwv kev lag luam zoo ntawm kev siv silicon carbide tshaj silicon yog nyob rau hauv kev lag luam tsheb hluav taws xob. Thaum tsav tsheb EV, cov khoom siv hluav taws xob tau tsim los txhawb nqa tag nrho lub zog ntawm lub tsheb lub peev xwm, uas tuaj yeem ua tiav hauv silicon thiab silicon carbide-raws li kev tsim. Silicon IGBTs feem ntau yog siv nyob rau hauv EV inverters, uas lawv tsav roj teeb -powered motors. Txawm li cas los xij, muab lub tsheb ib txwm tsav lub voj voog ntawm lub tsheb (piv txwv li, tsis siv tag nrho cov load), silicon lub siab tiv thaiv ua rau nws tsis muaj txiaj ntsig. Txij li thaum silicon carbide tuaj yeem ua tau raws li cov qauv tsim qauv ntawm qhov me me, silicon carbide ua haujlwm tau zoo dua thiab tuaj yeem ua rau tag nrho cov inverter qhov ua tau zoo ntawm ze li 80%.

Cov ntawv pov thawj

Peb lub Hoobkas

Hauv qab no yog peb lub Hoobkas:

Qhov kawg Guide

Q: Dab tsi yog qhov tseem ceeb ntawm silicon carbide?

A: Silicon carbide yog abrasive nrov heev nyob rau hauv niaj hnub lapidary vim nws cov kav ntev thiab tus nqi qis ntawm cov khoom. Nws yog, yog li ntawd, tseem ceeb heev rau kev lag luam kos duab. Hauv kev tsim khoom lag luam, qhov sib xyaw no yog siv rau nws qhov nyuaj hauv ntau cov txheej txheem abrasive xws li honing, sib tsoo, dej - dav hlau txiav, thiab sandblasting.

Q: Dab tsi yog cov yam ntxwv ntawm silicon carbide?

A: Tsawg ceev.
Siab zog.
Zoo siab kub lub zog (reaction bonded)
Oxidation tsis kam (kev sib koom ua ke)
Zoo heev thermal shock kuj.
High hardness thiab hnav tsis kam.
Cov tshuaj tiv thaiv zoo heev.
Tsawg thermal expansion thiab siab thermal conductivity.

Q: Puas yog silicon carbide soluble hauv dej?

A: Silicon carbide yog insoluble hauv dej. Txawm li cas los xij, nws yog soluble hauv molten alkalis (xws li NaOH thiab KOH) thiab kuj molten hlau. Silicon carbide tuaj yeem suav hais tias yog ib qho organosilicon compound.

Q: Dab tsi yog daim ntawv thov ntawm SiC hauv cov khoom siv hluav taws xob?

A: Silicon carbide yog ib qho khoom siv hluav taws xob zoo kawg nkaus rau kev siv hluav taws xob, ua tsaug rau tag nrho nws lub peev xwm los tiv thaiv cov hluav taws xob siab, txog li kaum zaus siab dua li cov siv tau nrog silicon. Semiconductors raws li silicon carbide muab cov thermal conductivity ntau dua, muaj hluav taws xob ntau dua, thiab qis zog poob. SiC diodes thiab transistors tuaj yeem ua haujlwm ntawm ntau zaus thiab qhov kub thiab txias yam tsis muaj kev cuam tshuam kev ntseeg tau.

Q: Puas yog silicon carbide tsis zoo rau ib puag ncig?

A: Txawm li cas los xij, nws tsim nyog sau cia tias SiC cov cuab yeej tsim khoom muaj kev cuam tshuam ntau dua ib puag ncig piv rau cov sib npaug silicon. Kev tsim tawm ntawm SiC wafers tawm ntau dua peb zaug CO2 ntau npaum li silicon wafers.

Q: Vim li cas SiC thiaj li muaj qhov hluav taws xob siab?

A: Ua tsaug rau qhov kev siv hluav taws xob tawg ntawm qhov hluav taws xob txog kaum npaug siab dua li ntawm silicon, SiC tuaj yeem ncav cuag qhov hluav taws xob tawg siab heev, los ntawm 600V mus rau ob peb txhiab volts. SiC tuaj yeem siv ntau dua doping ntau dua silicon, thiab cov khaubncaws sab nraud povtseg tuaj yeem ua kom nyias nyias. Lub thinner txheej drift, qhov qis nws kuj. Hauv kev tshawb xav, muab qhov hluav taws xob siab, qhov kev tiv thaiv ntawm cov txheej drift ib cheeb tsam tuaj yeem txo mus rau 1/300 ntawm silicon.

Q: Dab tsi impurities yog siv los dope silicon carbide khoom?

A: Hauv nws daim ntawv ntshiab, silicon carbide coj zoo li cov hluav taws xob insulator. Nrog rau kev tswj hwm qhov sib ntxiv ntawm impurities lossis dopants, SiC tuaj yeem coj tus cwj pwm zoo li lub semiconductor. AP- hom semiconductor tuaj yeem tau txais los ntawm doping nrog txhuas, boron, lossis gallium, thaum impurities ntawm nitrogen thiab phosphorus ua rau muaj N- hom semiconductor. Silicon carbide muaj peev xwm ua tau hluav taws xob nyob rau hauv qee qhov xwm txheej tab sis tsis nyob hauv lwm tus, raws li cov yam ntxwv xws li qhov hluav taws xob lossis kev siv hluav taws xob infrared, pom lub teeb pom kev zoo, thiab ultraviolet rays. Tsis zoo li lwm cov ntaub ntawv, silicon carbide muaj peev xwm tswj tau P-hom thiab N- hom cheeb tsam xav tau rau kev tsim khoom siv ntau yam. Rau cov laj thawj no, SiC yog cov khoom tsim nyog rau cov khoom siv hluav taws xob thiab muaj peev xwm kov yeej cov kev txwv uas muaj los ntawm silicon.

Q: Dab tsi xim yog silicon carbide?

A: Ntshiab SiC tsis muaj xim. Cov xim xim av mus rau xim dub ntawm cov khoom lag luam tshwm sim los ntawm cov hlau impurities. Zaj sawv-zoo li lub suab ntawm cov muaju yog vim qhov nyias nyias - zaj duab xis cuam tshuam ntawm txheej txheej ntawm silicon dioxide uas ua rau saum npoo.

Q: Dab tsi yog qhov txawv ntawm ntsuab thiab dub silicon carbide?

A: Silicon carbide (SiC) hu ua carborundum. Nws muaj nyob rau hauv cov xim ntsuab thiab xim dub. Cov xim sib txawv yog vim lub purity ntawm silicon carbide, ntsuab SiC ua purity siab dua. Green SiC feem ntau yog siv rau hauv daim ntawv thov kev sib cuag zaub mov.

Q: Yuav ua li cas SiC semiconductors ua tau zoo dua thermal tswj dua silicon?

A: Yog hais tias ib tug semiconductor tsis muaj peev xwm dissipate tshav kub zoo, ib qho kev txwv yog qhia nyob rau hauv lub siab tshaj plaws kev khiav hauj lwm voltage thiab kub uas lub cuab yeej tuaj yeem tiv taus. Qhov no yog lwm qhov chaw uas silicon carbide outperforms silicon: lub thermal conductivity ntawm silicon carbide yog 1490 W / m-K, piv rau 150 W / m-K muab los ntawm silicon.

Q: Puas yog silicon carbide ruaj khov?

A: Silicon carbide (SiC) yog qhov thib peb cov khoom siv nyuaj tshaj plaws tom qab pob zeb diamond thiab boron nitride, uas muab SiC nws cov khoom zoo xws li siab - kub stability, imperviousness rau tshuaj tua kab mob, thiab lom neeg compatibility.

Q: Dab tsi yog qhov nyuaj ntawm silicon carbide ntau lawm?

A: Qhov kev sib tw tseem ceeb rau kev tsim SiC suav nrog cov yam ntxwv ntawm cov khoom siv. Vim nws hardness (yuav luag pob zeb diamond-zoo li), SiC yuav tsum tau kub dua, muaj zog dua, thiab ntau lub sij hawm rau siv lead ua loj hlob thiab ua.

Q: Dab tsi yog qhov phom sij ntawm silicon carbide?

A: Silicon Carbide tuaj yeem ua rau khaus qhov muag thiab qhov ntswg ntawm kev sib cuag. Kev rov raug siab dua ntawm Silicon Carbide tuaj yeem ua rau Pneumoconiosis (mob ntsws ntawm lub ntsws) nrog lub hauv siab x-ray hloov, thiab txo qis hauv lub ntsws ua haujlwm nrog ua pa luv, hawb pob thiab hnoos.

Q: Puas yog silicon carbide tawg tau?

A: Txawm hais tias nkig hauv qhov xwm txheej, silicon carbide ceramics yog cov khoom siv rau kev sib hloov thiab cov khoom zoo li qub hauv ntau daim ntawv thov. Lawv yog cov yam ntxwv los ntawm cov pob txha tsis tshua muaj zog thiab tsis tshua muaj zog- mus rau - tsis ua hauj lwm piv rau cov hlau.

Q: Dab tsi yog dub silicon carbide?

A: Dub silicon carbide (SiC) yog ib qho semi-friable abrasive feem ntau siv rau kev siv abrasive dav dav hauv cov cuab yeej sib txuas, lapping, polishing, tock tumbling, iav etching thiab frosting.

Q: Dab tsi ua rau silicon carbide cov khoom muaj zog heev?

A: Hauv ib lub SiC siv lead ua Si thiab C atoms tsim muaj zog heev tetrahedral covalent bonds (kev cog lus zog=4.6 eV) los ntawm kev sib koom ntawm electron khub hauv sp3 hybrid orbitals. Cov txiaj ntsig tshwm sim ntawm SiC ua rau muaj ntau yam thiab ntau yam kev siv tau, tshwj xeeb tshaj yog siv rau hauv cov xwm txheej nyuaj.

Q: Dab tsi yog qhov tsis muaj zog ntawm silicon carbide?

A: Cov khoom siv silicone carbide yog cov khoom tawg yooj yim thiab tsis haum rau qee qhov chaw nrog cov khoom loj thiab hnav yooj yim. Kev ua haujlwm tsis zoo: Lub machinability ntawm silicon carbide cov khoom tsis zoo, thiab kev ua haujlwm nyuaj, yog li nws nyuaj rau kev tsim cov khoom siv silicon carbide nrog cov duab nyuaj.

Q: Vim li cas silicon carbide thiaj li kim?

A: Tus nqi ntawm ib qho silicon carbide (SiC) nti tuaj yeem sib txawv nyob ntawm ntau yam, suav nrog cov ntawv thov tshwj xeeb, qhov loj me, qhov nyuaj, thiab cov txheej txheem tsim khoom. Feem ntau, SiC chips zoo li yuav kim dua li cov khoom siv silicon ib txwm muaj vim cov khoom siv siab heev thiab cov txheej txheem tsim khoom koom nrog.

Raws li ib qho ntawm cov ua silicon carbide manufacturers thiab lwm tus neeg nyob hauv Suav teb, peb sov siab txais tos koj mus yuav los yog lag luam wholesale bulk silicon carbide ua nyob rau hauv Suav teb nov los ntawm peb lub hoobkas. Tag nrho cov khoom customized yog nrog cov khoom zoo thiab cov nqi sib tw. Tiv tauj peb kom paub meej ntxiv.