Mphete ya Graphite Yokutidwa ndi PG

Ngati mudagwiritsapo ntchito ng'anjo yokulirapo ya SiC crystal, mukudziwa kuti zigawo zazing'ono zingapangitse kusiyana kwakukulu. Mzere wa graphite wokhala ndi PG ndi umodzi mwa zigawozo - womwe umabisika m'dera lotentha la makina a PVT, umathandiza kuti mawonekedwe a kutentha akhale olimba, umathandizira kuti kuthamanga kukhale kolimba, komanso umachepetsa kuipitsidwa kwa mpweya panthawi yayitali komanso yokwera mtengo yokulirapo.

Timayamba ndi graphite yoyera kwambiri ndikuipatsa utoto wokhuthala wa pyrolytic graphite (PG). Poyerekeza ndi graphite wamba, mtundu wophimbidwawo umatulutsa kutentha bwino, umalimbana ndi kuukira kwa mankhwala, ndipo umataya tinthu tating'onoting'ono kwambiri. Ndipo pamene opanga mawaya a SiC akukankhira makristalo akuluakulu ndi kutulutsa kwamphamvu, mphete izi zakhala zogwiritsidwa ntchito kwambiri - osati pongogwira ntchito, komanso posunga uvuni wambiri ukugwira ntchito ndi zotsatira zobwerezabwereza.

Nchiyani chikuyimira?

Chophimba cha PG choyera kwambiri - Chophimbacho chili ndi kapangidwe kabwino ka kaboni komwe kamakhala koyera komanso kokhazikika ngakhale zinthu zitatentha kwambiri. Sichimawonongeka mosavuta kapena kutulutsa zinyalala m'malo okulira.

Yopangidwira SiC PVT - Mphamvu ya kutentha ya mpheteyi imagwirizana ndi zosowa zenizeni za kukula kwa kristalo ya silicon carbide. Kugawa kutentha kofanana ndikofunikira pano, ndipo gawo ili lapangidwa kuti lithandize kukwaniritsa zimenezo.

Amatha kusinthasintha kutentha mobwerezabwereza - Tikulankhula za >2200°C, kuzungulira kuzungulira. Mpheteyo imakhala ndi mawonekedwe ake ndi miyeso yake, kotero simuyenera kusintha nthawi zonse magawo anu a ntchito.

Kupanga tinthu tating'onoting'ono kochepa - Chifukwa chakuti pamwamba pa PG ndi pokhuthala kwambiri, fumbi la graphite ndi ma flakes otayirira amachepa kwambiri. Izi zikutanthauza kuti chipinda choyera komanso zolakwika zochepa mu boule yomaliza.

Zosinthika - Mukufuna makulidwe osiyana a khoma, kuya kwake kokhala ndi chophimba, kapena kukula kwa mkati komwe sikuli koyenera? Titha kugwira ntchito kuchokera ku zojambula zanu, mawonekedwe a uvuni wanu, kapena ngakhale chitsanzo chomwe chilipo kale.

Kugwirizana kwa gulu lililonse - Kaya mukuyitanitsa zidutswa zingapo za kafukufuku ndi chitukuko kapena kutumiza nthawi zonse kuti zipangidwe, timasunga zofunikira kuti musafunikire kubwerezanso mtundu uliwonse watsopano.

Kodi mphete zimenezi zimagwiritsidwa ntchito kuti kwenikweni?

● Zitofu zokuliramo makristalo a SiC - makamaka mtundu wa PVT

● Misonkhano ya semiconductor yotentha

● Zigawo za ng'anjo ya graphite yotentha kwambiri

● Mizere yopangira maboule a SiC

● Zipangizo zopangira semiconductor zogwiritsa ntchito bandgap yayikulu

● Machitidwe a R&D a kuyesa kukula kwa makristalo

Bwanji kusankha PG-coated kuposa graphite wamba?

Nayi mwachangu mbali ndi mbali:

Kapangidwe ka graphite kokonzedwa bwino mu utoto wa PG sikuti kamangowonjezera kutentha kokha - kumathandizanso kukhazikika kwa kutentha, komwe kumakhala kofunikira kwambiri mukakulitsa makhiristo akuluakulu.

Kupanga ndi kuwongolera khalidwe - kodi timachita chiyani kwenikweni?

Timayika graphite substrate molondola, kenako timayendetsa njira yowongolera bwino ya CVD kuti tigwiritse ntchito PG layer. Pambuyo pake, gulu lililonse limadutsa:

● Kuyang'ana kukula kwa miyeso

● Kuyeza makulidwe a chophimba

● Kuyang'anira khalidwe la pamwamba (pogwiritsa ntchito zithunzi komanso zida)

● Kutsimikizira kuyera

● Mayeso ogwirizana a batch-to-batch

Ngati mukugwiritsa ntchito ma uvuni angapo, mukudziwa kale momwe zimavutira ngati zida zosinthira sizikugwirizana. Ichi ndichifukwa chake timasamala kwambiri kuti gulu lililonse likhale pafupi momwe tingathere - zimakupulumutsirani nthawi yokonzanso zinthu ndipo zimathandiza kuti kukula kukhale kokhazikika kuchokera ku uvuni kupita ku uvuni.

Kodi Semixlab imapereka chiyani mu graphite yokutidwa?

Timagwira ntchito kwambiri ndi graphite yokhala ndi coated high performance ya ma semiconductors, kukula kwa makristalo a SiC, komanso kukonza kutentha kwapamwamba. Zogulitsa zathu zikuphatikizapo:

● Mphete za graphite zophimbidwa ndi PG

● Mipira yophimbidwa ndi PG

● Malangizo ndi ma liners okhala ndi PG

● Zigawo za gawo la kutentha zomwe zili ndi PG

● Zigawo za graphite zophimbidwa ndi SiC

● Misonkhano ya graphite yopangidwa mwamakonda

Tagwira ntchito ndi opanga mawaya ambiri a SiC komanso ogulitsa zida kwa zaka zambiri, kotero tikumvetsa zofunikira zenizeni za malo otentha kwambiri komanso oyera kwambiri.

Mafotokozedwe aukadaulo wamba (maumboni ofotokozera)

Izi zitha kusinthidwa kuti zigwirizane ndi zomwe mukufuna.

Mafunso ena omwe timamva nthawi zambiri

1. Kodi kusiyana kwenikweni pakati pa PG covering ndi PyC covering ndi kotani?

Mwachidule, PG (pyrolytic graphite) ili ndi kapangidwe ka kristalo kokonzedwa bwino, komwe kamapereka mphamvu yabwino yoyendetsera kutentha komanso kuyang'anira kutentha. PyC (pyrolytic carbon) imaperekanso chitetezo chabwino pamwamba, koma mphamvu yake yotenthetsera nthawi zambiri imakhala yotsika. Ngati kufanana kwa mphamvu yanu yotenthetsera ndikofunikira, PG nthawi zambiri imakhala yoyenera bwino.

2. Kodi mungapange mphete izi molingana ndi kapangidwe kanga?

Inde. M'mimba mwake wakunja, m'mimba mwake wamkati, kutalika, makulidwe a chophimba, ngakhale malo ophimba pang'ono - tikhoza kutsatira zojambula zanu kapena kubwereza chitsanzo chomwe chilipo kale.

3. Ndi mafakitale ati omwe amawagwiritsa ntchito kwambiri?

Makamaka kukula kwa makristalo a SiC, kupanga ng'anjo ya semiconductor, ndi kukonza zinthu zilizonse zotentha kwambiri komwe kuyera ndi kukhazikika kwa kutentha ndikofunikira.