Nadiifinta sare ee garaafka jilicsan ayaa dareemay

Semixlab waa soo saaraha hormuudka ah ee garaafyada jilicsan ee jilicsan ee jilicsan ee laga dareemay Shiinaha, diiradda saaraya bixinta xalalka kuleylka kuleylka ee waxqabadka sare ee warshadaha semiconductor, photovoltaic iyo heerkulka sare ee warshadaha. Alaabtaani waxay qabataa alaabta ceyriinka ah ee nadiifka sare ah ee dibadda laga keeno (content ≤0.1%), oo ka samaysan qaab dhismeedka shabakadda fiber-ka iyada oo loo marayo hab gaar ah, waxayna leedahay astaamo udub dhexaad ah sida kulaylka aadka u hooseeya (≤ 0.25W / m · K at 1000 ℃), iska caabin heerkul aad u sarreeya (heerkulka isticmaalka joogtada ah ee 3000 ℃) waa walxaha kiimikada nidaamka goobta kulaylka saxda ah.

Nadiifinta sare ee garaafka jilicsan ee jilicsan ayaa ah sheyga udub dhexaadka u ah nidaamka kuleylka kuleylka ee semiconductor iyo qalabka sawir-qaadista. Iyada oo loo marayo tolida saxda ah iyo isugaynta fiilooyinka garaafka saafiga ah ee sarreeya, qaabdhismeed dalool ah oo leh kororka kulaylka hooseeya ayaa la sameeyay. Deegaannada heerkulku sarreeyo (tusaale, ka sarreeya 800 ℃), waxay si weyn u yaraynaysaa luminta kulaylka iyadoo ka tarjumaysa kulaylka dhalaalaysa waxayna yaraynaysaa dariiqa wareejinta kulaylka wejiga adag.

Marka loo eego farqiga alaabta ceeriin, alaabtu waxay u qaybsan tahay saddex qaybood:

PAN-ku salaysan graphite jilicsan ayaa dareemay: sifooyin farsamo oo aad u fiican, habka wax soo saarka fudud, oo si ballaaran loo isticmaalo qalabka taageerada qaabdhismeedka.

Garaafyada Viscose-ku-salaysan ee jilicsan ayaa dareemay: iska caabin xoog leh, dhibaato farsamo oo sarreeya, oo ku habboon goobta kuleylka kuleylka sare.

Garaafyada ku salaysan Pitch ayaa dareemay jilicsan: qani ku ah alaabta ceeriin, dhalidda karbonjaynta sare, laakiin codsiga suuqa waa cidhiidhi.

1. Qalabka wax soo saarka Semiconductor

Habka kobaca silikoon crystal-ka ah:

Habka CZ ee foornada crystal-ka ah, kuleyliyaha graphite iyo quartz crucible ayaa lagu duuduubay si loo gaaro xakameyn sax ah ee heerkulka dhalaalka (farqiga heerkulka axial ≤2 ℃ / cm) iyo in la hubiyo xasilloonida heerka kobaca crystal hal.

Foornada koritaanka silikon carbide:

Marka habka PVT la isticmaalo, dareenka jilicsan sida lakabka dahaarka xudunta u ah waxay kordhin kartaa isku midka ah ee goobta kulaylka axial ee foornada 40%, waxayna hoos u dhigtaa heerka cilladda crystal ilaa <0.5/cm².

2. Qalabka warshadaha sawir-qaadista

Foornada foornada ee polycrystalline:

Naqshadaynta isku dhafka ah waxay hagaajinaysaa waxtarka kulaylka foornada ilaa 85%, taas oo ah 30% badbaadinta tamarta marka la barbar dhigo kaarboonka adag ee dhaqameed.

3. Qalabka warshadaha heerkulka sare

Heerka qaboojinta ee dahaarka dahaarka kulaylka ee qolka kulaylka ee faakuumka cadaadiska sare ee foornada deminta gaaska ayaa kordhay 20%.

Habka xirida firfircoon ee aagga sintering ee foornada vacuum sintering foornada waxay yaraynaysaa isticmaalka gaaska argon 15%.

Nadiifinta aadka u sareysa: dambas ≤500ppm, 200ppm, 20ppm, waa la habeyn karaa.

Iska caabin heerkul sare ah oo aad u sarreeya: heerkulka ugu sarreeya ee shaqeynaya 3000 ℃.

Acid iyo alkali caabbinta daxalka: (PH 2-12), falcelinta eber. 

Habaynta xalka farsamada: jilitaanka goobta kulaylka + xulashada walxaha naqshadeynta wadajirka ah.

Faa'iidooyinka kala soocida: 200% iska caabin heerkul ka sarreeya marka loo eego kaarboon dhaqameedka, 50% kulaylka ka hooseeya marka loo eego garaafyada tartanka la dareemay, taageer is dhexgalka nidaamka xidhidhiyaha firfircoon.