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Porous graphite
| Nzvimbo Yokutanga: | China | |
| Brand Name: | Semixlab | |
| Model Number: | PG-001 | |
| advertising: | ISO9001 | |
| Minimum Order Yakawanda: | Zvichienderana nehukuru hwemunhu (rutsigiro rwekutsvaga uye kusimudzira kwediki batch test mirairo) | |
| Price: | Quote zvinoenderana neyakajairwa kudiwa (hombe huwandu kuderedzwa) | |
| Packaging Details: | Air-proof anti-oxidation packaging, bhokisi remapuranga rinovhundutsa (rinoenderana nemaitiro ekufambisa enyika) | |
| Nguva Yokutora: | 20-45 mazuva (zvichienderana nekugadzirisa kuoma) | |
| Mitemo Yekubhadhara: | T / T (50% pamberi, 50% yakabhadharwa isati yasvika) | |
| Kupa Mikana: | Mwedzi wega wega wekugadzira huwandu hwe3000 zvidimbu, tsigira nekukurumidza kurongeka kugadzirwa | |
tsananguro
Porous graphite inonyanya kushandiswa muPVT (physical vapor transfer) silicon carbide (SiC) single crystal growth process, ndiyo yakakosha zvinhu zvekupisa tembiricha yemunda system. Chigadzirwa chacho chakagadzirwa ne-ultra-high kuchena isostatically yakadzvanywa graphite, iyo inoumba yunifomu uye inodzoreka porous chimiro kuburikidza nechaiyo CNC machining uye pore control tekinoroji, kuve nechokwadi chekuita kwakanakisa pasi peyakanyanya maitiro mamiriro (2200 ℃). Dhizaini yayo yakasarudzika inonatsiridza kupisa kwemunda kufanana uye inogonesa gasi chikamu chekufambisa zvakanaka, inova vimbiso yakakosha yemhando yepamusoro yeSiC crystal kukura.
Core maficha uye mabhenefiti ekugadzirisa:
Kunyanya kuchena uye yakaderera kuremara mwero
Iyo vacuum yakakwirira-tembiricha yekuchenesa maitiro (3000 ℃ kurapwa) inoshandiswa kuwedzera kudzikisa zviri mukati meisina-simbi tsvina senge okisijeni nenitrogen. Bvisa kusachena kunokonzerwa nekristaro defects (senge microtubules, dislocations) kuve nechokwadi chekushanda kwemagetsi kuenderana kweSiC single crystals.
Ultra yakakwirira tembiricha kugadzikana uye thermal field control
Munzvimbo yeargon/vacuum, inogona kumira 2200 ℃ kuenderera mberi kwekushanda kweanopfuura maawa 1000, yakaderera coefficient yekuwedzera kwekupisa, uye kudzivirira kuputika kwezvinhu kunokonzerwa nekupisa kwekushushikana.
Iyo porosity inotsigira gradient kugovera dhizaini, yakasanganiswa neCFD simulation kukwidziridza saizi yepore (10-200μm), kunyatso gadzirisa kugoverwa kwemunda wekupisa, kuderedza tembiricha gradient fluctuation (mukati me ± 3 ℃), uye kugadzirisa kristaro kukura kufanana.
Yakagadziriswa mhinduro
Geometric adaptation: Tsigiro yakaoma chimiro kugadzirisa (senge annular crucible, yakawanda-layer nhovo), inofananidzira mutengi choto chimiro.
Kurapa kwepamusoro: Ipa ultra-precision polishing kana coating services kuti uwedzere kusaita ngura uye hupenyu hwesevhisi.
Kuongororwa kwekuita kwechishandiso
MuPVT SiC crystallization process, sechinhu chinorovera uye chinopisa chemunda chikamu:
Wedzera kukura kwekristaro ne15% -20% (ichienzaniswa neyakajairwa graphite);
Wafer goho rakawedzera kusvika kupfuura 90% (4 inch SiC single crystal);
Nguva yekuchengetedza yemidziyo inowedzerwa kusvika kumwedzi mitanhatu (yakajairika mwedzi mitatu).
Tsva Yekukurumidza:
1. Mamwe mazita: PVT graphite crucible, silicon carbide kukura ine porous graphite.
2. Kushandisa: PVT nzira (physical gas transport method) SiC single crystal growth core thermal field component.
3. Core parameters: kuchena ≥99.9995%, porosity 15-30%, kupisa kwekushisa 2200 ℃ (inert gas environment), thermal conductivity 100-150 W / m·K.
Magadzirirwo
| Mamiriro chaiwo emuviri weporous graphite | |
| ltem | Parameter |
| Hukuru density | 0.89 g / cm2 |
| Simba rinodzvinyirira | 8.27 MPa |
| Kukotama simba | 8.27 MPa |
| Simba simba | 1.72 MPa |
| Kuramba chaiko | 130Ω -inx10-5 |
| Rupo | 50% |
| Avhareji pore size | 70um |
| Kuchengetedza Kwemhepo | 12W/M*K |
Applications
PVT kukura kwechoto musangano: Sechikamu cheSiC zvinhu sublimation uye kukura kwekristaro, inopa yakagadzikana yekupisa munda kugovera.
Thermal field shielding component: porous structure inobudirira inoderedza kupisa kunetseka uye inowedzera hupenyu hwebasa remidziyo.
Mbeu yekristaro bracket: yakakwira mechani simba kutsigira mhodzi kristaro, kuve nechokwadi chekukura kwekristaro.
Gasi diffusion layer: kukwidziridza gasi chikamu chekufambisa zvakanaka, kunatsiridza imwechete yekristaro mhando uye kukura kwekukura.
Kukwikwidza Kunobatsira
Ultra-yakakwirira tembiricha kuita: hapana kupfava deformation pa2200 ℃, inotsigira anopfuura 1000 maawa ekuenderera mberi kwakagadzikana kushanda.
Tsika yekudziya munda dhizaini: Yakasanganiswa neCFD simulation kukwirisa pore gradient, kunatsiridza kufanana kwekristaro uye goho.
Kurumidza iteration sevhisi: ipa maitiro parameter yekufananidza bvunzo uye unza prototype mhinduro mukati memaawa makumi manomwe nemaviri.
