Yuav ua li cas yog silanes tsim?

2023-07-12 IB

1. Yuav ua li cas yog silane?

(1) Magnesium silicide txoj kev: hnov mob cov hmoov sib xyaw ntawm silicon thiab magnesium hauv hydrogen ntawm li 500 ° C, thiab hnov mob cov tshuaj magnesium silicide nrog ammonium chloride nyob rau hauv qis-kub kua ammonia kom tau silane. Purification ntawm nws nyob rau hauv ib tug distillation apparatus txias nrog kua nitrogen yields ntshiab silane.
(2) Heterogeneous tshuaj tiv thaiv txoj kev: react silicon hmoov, silicon tetrachloride thiab hydrogen nyob rau hauv ib tug fluidized txaj rauv kub siab tshaj 500 ° C kom tau txais trichlorosilane. Trichlorosilane yog cais los ntawm distillation. Dichlorosilane yog tau los ntawm heterogeneous cov tshuaj tiv thaiv nyob rau hauv lub xub ntiag ntawm ib tug catalyst. Cov dichlorosilane tau txais yog sib xyaw nrog silicon tetrachloride thiab trichlorosilane, yog li cov ntshiab dichlorosilane tuaj yeem tau txais tom qab distillation. Trichlorosilane thiab monosilane tau los ntawm dichlorosilane siv cov tshuaj tiv thaiv heterogeneous catalyst. Cov tau txais monosilane yog purified los ntawm ib tug tsawg-kub high-pressure distillation ntaus ntawv.
(3) Kho cov silicon-magnesium alloy nrog hydrochloric acid.
Mg2Si+4HCl—→2MgCl2+SiH4
(4) Silicon-magnesium alloy reacts nrog ammonium bromide hauv kua ammonia.
(5) Siv lithium aluminium hydride, lithium borohydride, thiab lwm yam raws li kev txo cov neeg ua haujlwm, txo cov tetrachlorosilane lossis trichlorosilane hauv ether.

2. Dab tsi yog cov khoom pib rau silane?

Cov khoom siv raw rau kev npaj ntawmsilane uaFeem ntau yog silicon hmoov thiab hydrogen. Cov kev cai purity ntawm silicon hmoov yog qhov siab, feem ntau ncav cuag ntau tshaj 99.999%. Hydrogen kuj tseem ua kom zoo dua los xyuas kom meej lub siab purity ntawm cov silane npaj.

3. Lub luag haujlwm ntawm silane yog dab tsi?

Raws li cov khoom siv roj av uas muab cov khoom siv silicon, silane tuaj yeem siv los tsim cov khoom siv high-purity polycrystalline silicon, ib leeg siv lead ua silicon, microcrystalline silicon, amorphous silicon, silicon nitride, silicon oxide, heterogeneous silicon, thiab ntau yam hlau silicides. Vim nws siab purity thiab zoo tswj, nws tau dhau los ua ib qho tseem ceeb roj tshwj xeeb uas tsis tuaj yeem hloov tau los ntawm ntau lwm qhov chaw silicon. Silane yog dav siv nyob rau hauv microelectronics thiab optoelectronics industries, thiab yog siv nyob rau hauv kev tsim cov hnub ci hlwb, tiaj vaj huam sib luag qhia, iav thiab steel txheej, thiab yog tib yam khoom nruab nrab nyob rau hauv lub ntiaj teb no rau loj-scale zus tau tej cov granular high-purity silicon. Kev siv thev naus laus zis ntawm silane tseem tab tom tshwm sim, suav nrog kev siv hauv kev tsim cov ceramics siab heev, cov ntaub ntawv sib xyaw, cov khoom siv, biomaterials, cov khoom siv hluav taws xob, thiab lwm yam, thiab ua lub hauv paus ntawm ntau cov thev naus laus zis tshiab, cov ntaub ntawv tshiab, thiab lwm yam. cov khoom siv tshiab.

4. Puas yog silanes ib puag ncig tus phooj ywg?

Yog lawm, tus neeg saib xyuas kev kho mob silane tsis muaj cov hlau hnyav hnyav thiab lwm yam kuab paug, thiab nws ua raws li ROHS thiab SGS cov qauv kev tiv thaiv ib puag ncig.

5. Kev siv silane

Skeleton qauv ntawm chlorosilanes thiab alkyl chlorosilanes, epitaxial kev loj hlob ntawm silicon, raw cov ntaub ntawv ntawm polysilicon, silicon oxide, silicon nitride, thiab lwm yam., solar cells, optical fibers, xim iav manufacturing, tshuaj vapor deposition.

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