Kuleyliyaha graphite ee Silicon Carbide

Kuleyliyaha Silicon-Carbide ee Dahaarka leh Sawirka

Sharaxaad Gaaban:

Semicera waa alaab-qeybiye hormuud ah oo ku takhasusay wafer-ka iyo isticmaalka semiconductor sare. Waxaan u heellannahay inaan bixinno alaab tayo sare leh, la isku halayn karo, iyo halabuur leh wax-soo-saarka semiconductor, warshadaha sawir-qaadista iyo qaybaha kale ee la xiriira.

Khadkayaga alaabada waxaa ka mid ah alaabada graphite ee dahaarka leh ee SiC/TaC iyo alaabada dhoobada ah, oo ka kooban agabyo kala duwan sida silikoon carbide, silicon nitride, iyo aluminium oxide iyo iwm.

Bixiye la aamini karo, waxaan fahamsanahay muhiimada ay alaabooyinka u leeyihiin habka wax soo saarka, waxaana naga go'an inaan gaarsiinno alaabada buuxisa heerarka tayada ugu sarreeya si loo fuliyo baahiyaha macaamiisheena.

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Tilmaamaha ugu muhiimsan ee kuleyliyaha garaafka:

1. isku mid ahaanshaha qaab dhismeedka kuleylka.

2. koronto wanaagsan iyo culeys koronto oo sarreeya.

3. iska caabin daxalka.

4. oksidizability.

5. nadiifinta kiimikada sare.

6. xoogga farsamada sare.

Faa'iidada waa tamar hufan, qiimo sare iyo dayactir hooseeya. Waxaan soo saari karnaa ka-hortagga oksaydhka iyo cimriga dheer ee garaafiga crucible, caaryada garaafka iyo dhammaan qaybaha kuleyliyaha garaafka.

Qiyaasaha ugu muhiimsan ee kuleyliyaha garaafka

Tilmaamaha Farsamada	VET-M3
Cufnaanta Weyn (g/cm3)	≥1.85
Waxyaabaha Ash (PPM)	≤500
Xeebta Adag	≥45
Iska caabin gaar ah (μ.Ω.m)	≤12
Xoog Jilicsan (Mpa)	≥40
Xoog isku dhejisan (Mpa)	≥70
Max. Cabbirka hadhuudhka (μm)	≤43
Isku-dhafka Balaadhinta kulaylka Mm/°C	≤4.4*10-6