Dab tsi yog qhov sib txawv ntawm silicon hlau thiab kev lag luam silicon?

Muaj silicon (tseem hu ua "metallurgical silicon" hauv qee thaj chaw) yog hais txog cov khoom siv hluavtaws silica (sitio₂) thiab carbon hauv lub tshuab hluav taws xob hauv hluav taws xob. Nws yog lub sijhawm dav dav npog txhua cov khoom silicon siv hauv kev siv cov ntawv thov (tsis suav nrog {- qib silicon). Nws qhov tseem ceeb tseem ceeb yog cov ntsiab lus silicon li ntawm 98.0% rau 99.5%, nrog cov qib tsis zoo xws li hlau (al), thiab cov calcium (ca) uas txiav txim siab nws qib.

Muaj silicon ua haujlwm ua cov khoom siv raw rau ferroalloys, tshuaj lom neeg, thiab qis}}}}}} beed cov khoom. Nws feem ntau tau cais los ntawm nws cov ntsiab lus impurity (piv txwv li} ca {}, muaj sib npaug lossis ntau dua li ib tug siab ruaj khov- purity pib.

Silicon HlauYog lub siab - purity subs subs subs subs subs subs, industrial industrial industrial sil sil sil sil sil sil sil sil sil sil def def def def by lossis siab dua 99.9%) thiab cov kab mob tsis huv. Lub impurities tseem ceeb (FE, AL, CA) yog qhov tsawg dua li ntawm peb lossis sib npaug los yog sib npaug lossis ntau dua lossis sib npaug 0.05%).

Lub "hlau" nyob rau hauv nws lub npe hais txog nws cov peev xwm siab thiab nws yog xim hlau luster (piv rau qis {{purity muaj silicon, uas muaj duller tsos). Nws yog ua kom haum rau cov ntawv thov uas xav tau cov tshuaj zoo dua thiab cov khoom siv lub cev, xws li high- cov ceramics zoo thiab kev tshaj lij.

Qhov muaj teeb meem tshaj plaws ntawm silicon hlau thiab kev lag luam silicon lus dag hauv lawv daim ntawv thov scenarios {} purity ncaj qha sau cov kev lag luam uas lawv ua haujlwm. Hauv qab no yog lawv qhov kev siv thawj zaug:

Cov Kev Siv Silicon (98.0% -99.5% Purity)

Kev lag luam Silicon tus nqi - ua tau zoo thiab muaj kev ua kom zoo rau cov khoom lag luam}

Ferrinoalloy ntau lawm:

Qhov loj tshaj plaws thov -} siv los tsim khoomFerro Silicon (Fesi), tus deoxidization tseem ceeb hauv statmaking statmaking. Muaj Silicon reacts nrog hlau los ua fesi, uas tshem tawm cov pa los ntawm cov hlau molten thiab txhim kho nws cov tawv.

Txhuas alloying:

Ntxiv rau txhuas los tsim cov siab - Lub zog aluminium alsoys rau cov khoom siv tsheb (piv txwv li cov khoom siv cav), thiab ntim cov ntawv ci. Nws ua kom tau zoo li qub txhuas cov coj tsis kam thiab tshav kub.

Tshuaj Nruab Nrab Nruab Nrab:

Siv los tsim cov lus silicon sib txuas zoo li silicon tetrachloride (sicl₄) thiab sodium silicate (dej iav) rau tshuaj ntxuav dej, cov tshuaj nplaum, thiab tshuaj ntxuav dej.

Tsawg - Khib kab ceramics:

Cov khoom siv hluav taws xob refractory, cov vuas luaj ceramic, thiab cov nyom (xws li cov carlicon

Silicon cov ntawv thov (ntau dua lossis sib npaug rau 99.5% purity)

Silicon lub siab purity ua rau nws haum rau high {}}} {1} {1} ncaj qha cuam tshuam ncaj qha cuam tshuam cov khoom lag luam uas cuam tshuam:

High - Zoo alloys:

Kev tsim cov tshwj xeeb txhuas alloys rau aerospace (piv txwv li, cov dav hlau fuselages), marine (mab, nkoj cov ntawv thov tub rog. Tsawg Fe / al / CA cov ntsiab lus tiv thaiv Brittle Phases hauv cov alloy.

Kev Lag Luam Organosilic ...

Cov khoom siv tseem ceeb rau kev tsim cov silicones (polysiloxanes), uas yog siv hauv cov seev cev, cov roj nplua nyeem, tshuaj pleev ib ce (piv txwv li cov khoom siv cua txias), thiab khoom siv kho mob. Siab purity ntseeg kom silicone lub tshuaj ruaj khov thiab biocompatibility.

Advanced Ceramics:

Siv thiab ua covSilicon Nitride (Si₃n₄)thiabSilicon Carbide (Sic)Ceramics rau high - cov khoom kub (piv txwv li, roj av, thiab semiconductor wafers. Purity txwv tsis pub muaj kev tsim cov qauv sib xyaw.

Hnub ci PV Kev Lag Luam:

Tsawg -} qib tsheb silicon hlau (99.5% -99.7%) yog ua ntej rau hnub ci- qibpolysilicon, siv nyob rau hauv vaj huam sib luag hnub ci. Kabmob tswj xyuas kom muaj kev zoo photoelectric hloov zuj zus efficiency.

- Q: Yog semiconductor - qib silicon tib yam li silicon hlau?
A: Tsis yog. semiconductor - qib sillicon muaj kev coj dawb huv tshaj lossis muaj ntau dua li silicon hlau tus 99.5% -99.9%. Nws yuav tsum tau ntxiv cov kauj ruam ntxiv (piv txwv li, thaj tsam melting) thiab yog ib pawg cais.
- Q:Muaj peev xwm muaj Silicon puas tau hloov kho rau cov hlau silicon?
A: Yog, tab sis nws raug nqi -} txwv tsis pub. Txhim kho cov silicon yuav tsum tau rov- smelting thiab intensive purelting thiab kev ua kom zoo dua li ua cov khoom sizlicon ncaj qha los ntawm high- purity raw khoom.
- Q:Vim li cas thiaj li silicon hlau ntau dua li kev lag luam silicon?
A: Siab {{{-, 99% SKICA SANDS (Acid Leaching, Lub Tshuab Nqus Tsev Zoo) Ntxiv 20% -30% Rau Cov Nqi Ntau Lawm.