Khoom Description
Silicon carbideyog ib tug semiconductor uas tshwm sim nyob rau hauv cov xwm nyob rau hauv daim ntawv ntawm tsis tshua muaj mineral moissanite. Txij li thaum xyoo 1893 nws tau raug tsim los ua hmoov thiab siv lead ua, siv los ua abrasives, thiab lwm yam. Ntawm cov uas tsis yog-oxide high-tech refractory raw cov ntaub ntawv xws li C, N, thiab B, silicon carbide yog cov khoom siv dav tshaj plaws thiab kev lag luam, uas tuaj yeem hu ua kub steel xuab zeb lossis refractory xuab zeb. Tuam Tshoj cov khoom lag luam tsim silicon carbide tau muab faib ua ob hom: dub silicon carbide thiab ntsuab silicon carbide, ob qho tib si yog hexagonal crystals.
Khoom Parameters
| Qib | Cov ntsiab lus% | ||||
| SiC | Dawb Carbon | Fe2O 3 | |||
| 98.5 | 9 8,5m | 0.2 max | 0.6 max | ||
| 97 | 97 nqi | 0.3 max | 1.2 max | ||
| 95 | 95 nqi | 0.6 max | 1.2 max | ||
| 90 | 90 min | 1 0max | 1.2 max | ||
| 88 | 88 nqi | 4 0max | 1.5 max | ||
Cov Khoom Duab
1.Silicon carbideCov ntaub ntawv crystalline tau tsim rau ntau tshaj 100 xyoo. Xyoo 1892, Acheson tau tsim ib txoj hauv kev los tsim SiC hmoov los ntawm silicon dioxide thiab carbon, thiab nyob rau hauv txoj kev no, ib tug by-product tau pom, uas yog flake SiC cov ntaub ntawv, tab sis cov flake SiC cov ntaub ntawv tsis yog siab purity thiab me me, thiab tsis tuaj yeem siv los ua cov khoom siv semiconductor. Nws tsis yog txog xyoo 1955 uas Lel tau ua tiav hauv kev loj hlob ntawm SiC crystals los ntawm sublimation thev naus laus zis, tseem hu ua Lely txoj kev.
2.Txawm li cas los xij, vim qhov me me thiab kev ua haujlwm loj sib txawv ntawmsilicon carbidedaim ntawv cov ntaub ntawv npaj los ntawm Lely txoj kev, nws tsis tuaj yeem siv los ua kev lag luam thev naus laus zis rau kev loj hlob SiC ib leeg muaju. Thaum lub sij hawm 1978-1981, Tarov thiab Tsvetkov tau txhim kho ntawm Lely txoj kev los ntawm kev qhia cov noob siv lead ua rau hauv sublimation rauv thiab tsim kom muaj qhov kub thiab txias gradient los tswj kev thauj ntawm SiC qhov chaw mus rau cov noob siv lead ua raws li qhov ntsuas kub thiab kev xav, Txoj kev loj hlob hu ua txoj kev hloov kho Lely, tseem hu ua cov noob siv lead ua sublimation txoj kev, los yog lub cev vapor theem thauj (PVT) txoj kev.
3.Ua li no,silicon carbideCrystals nrog cov kab uas loj dua thiab qis dua qhov tsis xws luag tuaj yeem tau txais. Nrog rau kev txhim kho txuas ntxiv ntawm cov txheej txheem kev loj hlob, cov tuam txhab uas tau ua tiav kev lag luam siv txoj kev no suav nrog Cree thiab Dowcorning hauv Tebchaws Meskas, SiCrystal hauv Tebchaws Yelemees, Nippon Steel hauv Nyiv, Shandong Tianyue thiab Tianke Heda hauv Suav teb.
Yog tias koj xav tau cov khoom siv silicon hlau ntsig txog, thov sau rau peb cov khoom koj xav tau, thiab peb yuav xa peb cov lus hais tam sim no rau koj siv.
Cim npe nrov: Tuam Tshoj inorganic silicon carbide manufacturers, lwm tus neeg, Hoobkas