Polū/'ōmaʻomaʻo LED epitaxy

ʻO ka wehewehe pōkole:

Hāʻawi kā mākou hui i nā lawelawe kaʻina hana SiC coating ma ke ʻano CVD ma ka ʻili o ka graphite, ceramics a me nā mea ʻē aʻe, i hiki ai i nā kinoea kūikawā i loaʻa i ke kalapona a me ke silika ke hana i ke kiʻekiʻe kiʻekiʻe e loaʻa ai nā molekala SiC maʻemaʻe kiʻekiʻe, nā molekole i waiho ʻia ma ka ʻili o nā mea i uhi ʻia, e hana ana i ka papa pale SIC.


Huahana Huahana

Huahana Huahana

Nā hiʻohiʻona nui:

1. Kiʻekiʻe wela oxidation kū'ē:

ʻoi aku ka maikaʻi o ka pale ʻana i ka oxidation ke kiʻekiʻe ka mahana e like me 1600 C.

2. Maʻemaʻe kiʻekiʻe: hana ʻia e ka hoʻoheheʻe ʻana i ka mahu ma lalo o ke kūlana chlorination kiʻekiʻe.

3. Erosion kū'ē: kiʻekiʻe paakiki, paʻaʻiliʻili, maikaʻi particles.

4. Ke kū'ē i ka corrosion: acid, alkali, paʻakai a me nā mea hoʻoulu.

 Nā kikoʻī nui oKa uhi ʻana o CVD-SIC

Nā Waiwai SiC-CVD

Hoʻomoe Crystal Māhele FCC β
ʻO ka mānoanoa g/cm ³ 3.21
ʻoʻoleʻa ʻO ka paʻakikī Vickers 2500
Ka nui o ka palaoa μm 2~10
Maemae Kemika % 99.99995
Kaha Wela J·kg-1 ·K-1 640
Mahana Sublimation 2700
Ikaika Felexural MPa (RT 4-point) 415
ʻO Young's Modulus Gpa (4pt piko, 1300 ℃) 430
Hoʻonui wela (CTE) 10-6K-1 4.5
ʻO ke kau wela wela (W/mK) 300

 

 
Epitaxy LED
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