Kev siv cov carbon-carbon fiber ntau sib xyaw hauv semiconductor thiab photovoltaic industries

Nyob rau hauv cov nqe lus ntawm hom carbon-graphite cov ntaub ntawv siv nyob rau hauv daim ntawv thov ntawm graphite cov khoom nyob rau hauv lub semiconductor thiab photovoltaic industries, muaj feem xyuam rau kev lag luam kws txawj ntseeg hais tias cov hom ntawm graphite khoom siv yuav muab faib ua peb pawg, los yog peb theem ntawm kev loj hlob. Thawj hom yog cov khoom graphite ntawm molding (los yog extrusion, los yog vibration) molding txheej txheem. Xws li graphite cov khoom tam sim no nyob hauv ib feem me me ntawm cov khoom siv carbon-graphite cov khoom siv hauv kev lag luam semiconductor thiab photovoltaic. Hom thib ob yog isotropic high-purity graphite khoom los ntawm isostatic nias. Nws yog feem ntau siv nyob rau hauv tam sim no semiconductor thiab photovoltaic industries. Nws suav rau ntau dua 80 feem pua ​​​​ntawm cov khoom siv graphite siv nyob rau hauv lub ntiaj teb tag nrho cov semiconductor thiab photovoltaic industries. Qhov thib peb yog carbon-carbon fiber ntau composites. Qhov no yog ib yam tshiab ntawm cov ntaub ntawv thiab cov khoom uas muaj peev xwm hloov graphite cov ntaub ntawv nyob rau hauv semiconductor thiab photovoltaic kev lag luam daim ntawv thov.

Kev siv cov khoom siv carbon-carbon fiber ntau tuaj yeem suav tias yog theem thib peb ntawm daim ntawv thov ua cov cua sov thiab cov ntaub ntawv thermal rwb thaiv tsev nyob rau hauv semiconductor thiab photovoltaic industries, thiab nws kuj yog ib theem siab ntawm kev txhim kho thev naus laus zis. Txawm li cas los xij, nws tsis tau txhais hais tias cov isotropic high-purity graphite cov khoom siv tam sim no yuav raug tshem tawm yav tom ntej thiab txhua yam hloov los ntawm carbon-carbon fiber ntau cov ntaub ntawv. Cov kws tshaj lij kev lag luam ntsig txog ntseeg tias tsis muaj leej twg tuaj yeem hloov ob hom khoom siv thiab cov khoom siv hauv kev lag luam semiconductor thiab photovoltaic yav tom ntej. Nws yog kwv yees hais tias nyob rau hauv ib mus rau nees nkaum xyoo, nws yuav loj hlob mus rau hauv lub lag luam qauv ntawm "sib npaug nyob rau hauv ib nrab ntawm lub teb chaws".

Carbon-carbon composites yog carbon fiber reinforced carbon matrix composites. Nws muaj cov yam ntxwv zoo xws li lub teeb yuag, zoo ablation tsis kam, zoo thermal shock tsis kam, siab ua siab ntev, kub siab zog, thiab muaj zog tsim. Yog li ntawd, nws muaj ntau yam kev siv hauv aerospace, aviation, atomic zog thiab ntau lwm yam. daim ntawv thov. Ntxiv mus, cov ntaub ntawv sib xyaw tuaj yeem npaj tau nrog cov khoom thiab cov duab uas ua tau raws li cov kev xav tau ntawm kev siv tshwj xeeb los ntawm kev xaiv hom, qauv, tus naj npawb ntawm fibers, matrix precursors, thiab cov txheej txheem txheej txheem. Lub zog ntawm carbon-carbon composite cov ntaub ntawv yog ntau dua li ntawm graphite, thiab nws qhov seem stability, cuam tshuam tsis kam thiab thermal shock kuj yog qhov zoo, thiab nws cov khoom siv txhua yam zoo dua graphite. Cov khoom siv tuaj yeem ua kom huv si kom cov hlau impurity cov ntsiab lus tuaj yeem tswj tau qis dua 5ppm.

Siv raws li carbon-carbon composite thermal teb khoom rau semiconductor thiab photovoltaic industries, piv nrog cov tsoos graphite khoom, nws muaj cov nram qab no zoo:

(1) Nws tuaj yeem txuas ntxiv lub neej kev pabcuam ntawm cov khoom thiab txo cov naj npawb ntawm cov khoom hloov pauv, yog li txhim kho tus nqi siv ntawm cov khoom siv thiab txo tus nqi tu;

(2) Muab piv nrog cov khoom siv graphite, nws tuaj yeem ua kom nyias nyias, kom cov khoom siv uas twb muaj lawm tuaj yeem siv los tsim cov khoom uas muaj qhov ntev thiab qhov loj dua, uas tuaj yeem txuag tau ntau ntawm kev nqis peev hauv cov cuab yeej tshiab thiab ua rau nws qhov kub thiab txias dua;

(3) Vim nws qhov zoo thermal poob siab tsis kam, cov kab nrib pleb tsis yooj yim tsim nyob rau hauv qhov kub thiab txias thermal poob siab, yog li zam kev hloov pauv hauv qhov kub thiab txias;

(4) Thaum kos cov khoom lag luam loj, cov khoom siv graphite thermal teb yog qhov nyuaj rau kev tsim, thiab vim tias qhov kev ua tau zoo ntawm cov khoom siv carbon-carbon sib xyaw, carbon-carbon feem ntau siv thaum kos cov khoom loj loj txawv teb chaws. Composite thermal teb khoom;

(5) Cov khoom siv carbon-carbon composite yog siv los ua thermal rwb thaiv tsev (cov ntaub thaiv npog cua sov) hauv Czochralski ib leeg siv lead ua rauv. Vim nws cov thermal rwb thaiv tsev zoo, nws tuaj yeem txuag tau qee qhov kev siv hluav taws xob piv nrog kev siv cov khoom siv graphite. Qee qhov kev tshawb fawb pom tau tias nws tuaj yeem txuag tau 20 feem pua ​​​​ntawm hluav taws xob.