Rauemi Papatipu CVD SiC Parakore Teitei

Name: Rauemi Papatipu CVD SiC Parakore Teitei
Brand: Semixlab
Price: 60.0 USD
Availability: InStock
Rating: 4.6 (18 reviews)

Kei a Semixlab ngā rauemi papatipu CVD SiC parakore-teitei i hangaia mō te tipu tioata kotahi PVT SiC, e whakarato ana i tētahi puna pono mō ngā rauemi mata. Ka hangaia ā mātou rauemi papatipu SiC mā te whakamahi i te hangarau matū matatau mō te whakatakoto kohu (CVD), e whakaatu ana i te ihirangi poke tino iti, te matotoru teitei, me te pumau wera pai rawa atu, e whakarite ana i te whanonga whakangawari pumau i roto i ngā tukanga kawe kohu tinana (PVT). Mā te whakahaere kounga pakari me te mahi puranga-ki-puranga rite tonu, ka āwhina a Semixlab i ngā kiritaki ki te whakatutuki i ngā tukanga tipu tioata SiC pono me te tauine. Kei te tumanako mātou ki tāu patai.

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Whakaahuatanga

Ko te Rauemi Puranga CVD Totoka SiC Tino Parakore he rauemi silicon carbide polycrystalline tino parakore, tino matotoru, i hangaia mā te tukanga Chemical Vapor Deposition (CVD). He mea hanga motuhake mō te tipu o ngā tioata takitahi silicon carbide mā te whakamahi i te tikanga Physical Vapor Transport (PVT) ā, he rauemi pūtake o te whakatupuranga e whai ake nei hei whakakapi i te paura SiC tuku iho.

Ka hangaia tēnei hua mā te hangarua me te whakamahi anō i ngā wāhanga haurua-haurua CVD-SiC tino parakore kua whakakorea. Mā roto i ngā tukanga pēnei i te kuru, te whakarōpū, me te purenga, ka hurihia hei rauemi mata āhua poraka me ngā rahinga whakahaere. He painga matua kei roto ko te tino parakore, te korenga o te paru puehu waro, me te tere o te tipu.

He aha i whiriwhiri ai i te rauemi papatipu CVD-SiC hei rauemi pūtake PVT?

1. Te Aranga Hangarau

Kua whakaatuhia e ngā rangahau hou ko te whakamahi i te rauemi papatipu CVD-SiC kuru hei rauemi pūtake PVT ka taea te tipu tere o ngā tioata takitahi SiC i raro i ngā pikinga pāmahana poutū teitei (~3.8 °C/mm), ka eke ki te tere tipu o te 1.46 mm/h me te pupuri tonu i te kounga tioata pai rawa atu— —me te whānui katoa i te haurua mōrahi (FWHM) o te tihi (0004) i roto i te tauira diffraction hihi-X o te 18.9 arcsec anake.

2. Te Whakatika i ngā Take Tūturu me ngā Pūtake Paura Tuku Iho

He nui ngā matūriki angiangi o te paura SiC tuku iho e whakangawari ana i ngā pāmahana teitei, e tuku ana i ngā poke, e whakaputa ana i te "puehu-C" (ngā matūriki waro totoka). I ngā tere tipu teitei, ka taea e ēnei matūriki te kawe e te rere hau ki te mata tioata, ka puta he hapa whakaurunga. Kāore he matūriki angiangi o te Rauemi Puranga CVD-SiC, ā, koia te whakatau i tēnei raruraru.

3. Te Hangarua Rauemi

Ko te rauemi papatipu CVD-SiC i ahu mai i ngā wāhanga CVD-SiC tino parakore (pērā i ngā poti karāpiti me ngā whakamahana) e whakamahia ana i roto i ngā tukanga haurua-ira. I muri i te kohikohinga me te kuru, ka whakamahia anōtia ēnei rauemi, kia tino parakore ai, kia taea ai hoki te whakamahi tonu i ngā rauemi.

Ratonga Whakaritenga

Ka taea e mātou te whakarato i ngā ratonga e whai ake nei i runga i ngā hiahia motuhake o ngā tukanga tipu PVT a ō mātou kiritaki:

Kōwhiringa Whakaritenga	Awhe Whakatakotoranga
Rahi Poraka	5 mm – 50 mm (ka taea te whakanekeneke i runga i te tono)
Koeke Purity	7N (99.99999%)
Momo Doping	Te ātete teitei / Te ātete iti (te tāpiritanga momo-N)
Packaging	Tākai rūma ma, kōwhiringa Akomanga 100/1000

Whakatakotoranga

Tawhā Hangarau

tawhā	Te Uara Tino
kiato	3.21 g/cm³ (Kōmato Ariā)
viivii	≥ 99.99999% (7N) mā te GDMS
Kaha Whakapiko (Pamahana Rūma)	372–539 MPa
Kaha Whakapiko (1300°C)	558 MPa
Te Whakaoho Tema	220–280 W/(m`K)
Tuhinga o te Whakawhānui Ngawha	4.5 × 10⁻⁶ /K (RT–1000°C)
Tuhinga	0.1 – 1.0 Ω`cm (Ka taea te whakarite)
Maamaa (Vickers)	2800 HV
Rahi Poraka Toharite	5–50 mm (Ka taea te whakarite)

Te Ihirangi Parakore Noa (Tātari GDMS)

huānga	Ihirangi (ppb)
Na	<2
Fe	<35
Cr	<26
Co	<1.3
Cu	<50
Zn	<9

tono

Scenario Tono

Te Whakamahinga Matua: Rauemi pūtake mō ngā tioata takitahi SiC i whakatipuria ki te PVT

Kua hangaia tēnei hua mō te tikanga kawe kohu ā-tinana (PVT) o te whakatipu i ngā papa tioata kotahi 4H-SiC me te 6H-SiC, hei rauemi whakakapi mō ngā pūtake silicon me te waro parakore-teitei.

Te Mātāpono Tukanga:

1. I te pāmahana teitei (2100–2500°C) me te pēhanga iti (~4 kPa), ka whakapūmau te rauemi papatipu CVD-SiC hei whakaputa i ngā momo hau pērā i te Si, SiC₂, me te Si₂C.

2. Nā te pikinga o te pāmahana, ka haria ēnei momo hau ki te mata tioata purapura.

3. Mā te whakakōhatu anō i runga i te tioata purapura ka hangaia he tioata takitahi SiC kounga teitei.

Tuemi Whakataurite	Paura SiC Tuku Iho	Rauemi Papatipu CVD-SiC
Rahi matahi	5-50 mm	nuinga
Take Puehu Waro	He ngāwari ki te whakaputa puehu C, ka arahi ki ngā whakaurunga	Kāore he matūriki angiangi, kāore he puehu C
Tohatohatanga o te poke	Te kukū teitei o te poke i roto i ngā matūriki iti	He ōrite, he tino iti ngā taumata poke
Taumare Tatauranga	0.3–0.8 mm/h	Tae atu ki te 1.46 mm/h
Rōnaki Pāmahana	Iti Iti	He nui ake, he tere ake te tipu

Painga whakataetae

āhuatanga	Whakaahuatanga
Te Parakore Tino-tiketike	Te parakore tae atu ki te 99.99999% (7N), he tino iti te ihirangi paru whakarewa (taumata ppb)
Kore Parahanga Puehu Waro	Kāore he matūriki angiangi o te āhua papatipu, ā, ka karohia ngā hapa tioata i puta mai i te "puehu C" i hangaia i ngā pāmahana teitei i roto i ngā pūtake paura tuku iho.
Te Tere Tipu Teitei	Mā te whakamahi i ngā pūtake papatipu CVD-SiC, ka taea te whakatutuki i te tere tipu tioata kotahi SiC tae atu ki te 1.46 mm/h, he nui ake i te 0.3–0.8 mm/h o ngā pūtake paura tuku iho.
Kounga Kiriata Pai	Ahakoa te tere tipu, ka mau tonu te iti o te kiato o ngā ngongo moroiti me te iti o te kiato o te nekenekehanga (~3000 cm⁻²), he rite tonu te kounga o te tioata ki ngā angaanga arumoni.
Te Āheitanga ki te Whakarerekētanga o te Rōnaki Pāmahana Nui	Ka nui ake te pikinga o te pāmahana i roto i te papa wera i te āhua papatipu, he mea pai mō te whakawhiti papatipu tere me te tipu pumau.
Te Whakataetae Utu	Mā te hangarua i ngā wāhanga CVD-SiC parakore-teitei kua panga atu i roto i ngā tukanga haurua-ā-ira ka taea te whakamahi anō i ngā rauemi, ā, ka hua ake he painga utu nui.