PYC Rufaffen Zanen Zane

A cikin yanayin da ake buƙata na silicon carbide (SiC) murhun haɓakar kristal guda ɗaya, PYC (Pyrolytic Carbon) zoben graphite mai rufi sune abubuwan da ba dole ba ne. Waɗannan zobba na ci-gaba an ƙera su don samar da kariya ta filin zafi mai mahimmanci da tallafi na tsari a cikin matakan zafi mai zafi. Babban darajar su ta ta'allaka ne a cikin keɓaɓɓen juriya mai zafi, rashin aiki da sinadarai, da daidaituwa mara kyau na rufin PYC tare da hanyoyin haɓaka SiC.

Ⅰ. Takamaiman ayyuka

Semixlab PYC rufaffiyar zoben graphite suna taka muhimmiyar rawa wajen tabbatar da ingantacciyar haɓaka da haɓaka mara ƙazanta na SiC guda lu'ulu'u:

1. Babban Kariya Filin Zafi

Juriya na Musamman na Oxidation: Graphite yana da sauƙi ga oxidation a yanayin zafi sama da 500°C. Rufin PYC mai yawa yana aiki azaman shamaki mara kyau, yadda ya kamata ya ware graphite substrate daga oxygen. Wannan mahimmanci yana ƙara tsawon rayuwar zoben graphite, yana rage buƙatar sauyawa akai-akai.

Rage ƙazanta mai ƙazanta: A matsanancin yanayin zafi sama da 2000°C da ake buƙata don haɓakar SiC, graphite da ba a kula da shi ba zai iya sakin ƙazanta maras tabbas, kamar ions na ƙarfe, wanda zai iya cutar da siC guda kristal. Layer na PYC yana hana wannan, yana tabbatar da tsabtar lu'ulu'u masu girma.

2. Ingantacciyar Kwanciyar Hankali

Juriya ga Si/C Vapor Corrosion: A yayin ci gaban SiC, kayan suna raguwa zuwa tururin Si/C. Rufin PYC yana ba da kariya mai ƙarfi, yana rage lalata da kuma yashwar zoben graphite ta waɗannan nau'ikan masu amsawa sosai.

Hana Shigar Carbon: Yawan carbon da ba a so ba zai iya shiga cikin narkewar SiC ba, yana haifar da mummunan tasiri ga tsabtar kristal. Rufin mu na PYC yadda ya kamata yana danne kutsewar carbon, yana kiyaye mutunci da ingancin lu'ulu'un ku na SiC.

3. Taimakon Injini Mai ƙarfi

Haɓaka juriya na sawa: Babban taurin murfin PYC yana haɓaka juriyar lalacewa na zoben graphite. Wannan yana rage lalacewa a ƙarƙashin girgizar zafi ko damuwa na inji, yana ba da gudummawa ga cikakkiyar kwanciyar hankali na tsarin haɓaka ku.

Ⅱ. Maɓallin Aikace-aikace a cikin SiC Single Crystal Growth Furnaces

Ana amfani da zoben graphite mai rufaffiyar PYC bisa dabara a wurare daban-daban masu mahimmanci a cikin tanderun girma na SiC:

● Rings Support Zobba: Matsayin da ke kusa da tushen tushen SiC (yawanci madaidaicin graphite), waɗannan zoben suna da mahimmanci ga:

-Kiyaye Uniformity Field Thermal: Suna taimakawa wajen rage yawan zafin jiki, don haka rage lahani na crystal da haɓaka ingancin girma.

-Hana gurɓatawa: Suna keɓance graphite crucible daga sauran abubuwan wutan lantarki, suna guje wa hulɗa kai tsaye da yuwuwar gurɓatawa.

● Abubuwan dumama: Lokacin da aka yi amfani da shi azaman rufin rufi don shigarwa ko juriya masu dumama, murfin PYC yana inganta aikin dumama kuma yana rage asarar makamashi, yana haifar da ƙarin ayyuka masu tsada.

● Zoben Garkuwan Ƙaura: A cikin tanderun girma na PVT (Jikin Vapor Transport), zoben graphite masu rufaffiyar PYC suna da alaƙa don nuna zafi da haɓaka rarraba zazzabi, wanda ke da mahimmanci don daidaitaccen sarrafa ci gaban crystal.

Ⅲ. Ingantaccen Tsari Daidaitawa

An ƙera zoben graphite ɗin mu na PYC don haɗawa mara kyau da ingantaccen aiki a cikin tsarin haɓakar ku na SiC:

● Madaidaicin Kauri: Yawancin lokaci muna amfani da kauri na PYC na 10-100 μm. Wannan kewayon ana sarrafa shi sosai, saboda rufin da ke da kauri zai iya haifar da tsagewa, yayin da wanda ya yi yawa yana ba da isasshen kariya.

● Tsari na Ci gaba: An kafa Layer PYC mai yawa akan saman graphite ta hanyar tsari mai sarrafa sinadari mai tururi (CVD). Wannan ya haɗa da daidaitaccen tsari na zafin jiki (yawanci 800-1200 ° C) da ƙimar iskar gas (misali, CH₄/H₂ cakuda) don tabbatar da ingancin shafi mafi kyau.

● Daidaituwar da ba ta dace ba: Zoben graphite mai rufin PYC ɗin mu yana nuna daidaito maras dacewa tare da manyan hanyoyin haɓaka SiC, gami da PVT (Tsarin Jirgin Jiki) da hanyoyin haɓaka zafin jiki mai zafi, ba tare da yin tasiri mara kyau na haɓakar haɓakar kristal ba.