Qaybaha Dhoobada Alumina ee Nadiifka Sare leh ee loogu talagalay Codsiyada Semiconductor & Warshadaha
St.Cera waxay soo saartaa qaybo dhoobo ah oo alumina (Al₂O₃) ah oo lagu farsameeyay makiinada saxda ah iyadoo loo eegayo tilmaamaha macaamiisha. Iyada oo la adeegsanayo 99.8% alumina saafi ah oo sare, qaybahani waxay bixiyaan xoog dabacsan oo heer sare ah (361 MPa), adkeysi sare (16 GPa), iyo xoog dielectric oo heer sare ah (15 × 10⁶ V/m). Waxaa loogu talagalay qalabka semiconductor-ka, isku-dhafka u adkaysta xirashada, dahaarka korontada, iyo qalabka heerkulka sare, agabku wuxuu bixiyaa nuugista biyaha ku dhow eber (0%) iyo isku-darka ballaarinta kulaylka oo ah 7.2 × 10⁻⁶/℃, taasoo hubinaysa xasilloonida cabbirka xaaladaha daran.
Tilmaamaha(oo ku salaysan 99.8% Al₂O₃):
Hantida | Qiimaha |
| Alaab | 99.8% Alumina (Ceyri) |
| Cufnaanta | 3.93 g/cm³ |
| Xoogga Dabacsanaan | 361 MPa |
| Adkaanta Jabka | 3–4 MPa·m¹/² |
| Adkaanshaha Vickers | 16 GPA |
| Modulus-ka Young | 380 GPA |
| Qaboojinta Kulaylka | 32 W/m·k |
| Ballaarinta Kulaylka (25–1000°C) | 7.2 × 10⁻⁶/℃ |
| Joogtada Dielectric | 9.6 |
| Xagasha Khasaaraha Dielectric | 0.0001 |
| Xoogga Dielectric | 15 × 10⁶ V/m |
| Iska caabin Gaar ah | >10¹⁴ Ω·cm |
| Heerkulka Hawlgalka ugu Badan | 1600°C |
Codsiyada:
- · Dahaarka qolka habka semiconductor-ka, goobaha daawashada, iyo taarikada qaybinta gaaska
- · Buushyo u adkaysta xirashada, faraantiyada shaabadda, iyo kubbadaha sita
- · Dareeraha korontada ee danab sare leh iyo dareeraha korontada ee danab sare leh
- · Qalabka foornada, taageerada kuleyliyaha, iyo tuubooyinka ilaalinta kulaylka
Habka Wax Soo Saarka:
Riixitaan Isostatic ah → mashiinka cagaaran → sintering heerkul ah 1600°C → CNC sax ah oo shiidi/dhajinta → nadiifinta ultrasonic → 100% CMM kormeer cabbir ah. Joomatari isku dhafan, derbiyo khafiif ah (≥0.5 mm), iyo dulqaad adag (ilaa ±0.01 mm) ayaa si joogto ah loo gaaraa.
Xakamaynta Tayada:
ISO 9001:2015 waa la xaqiijiyay. Dufcad kasta waxaa lagu tijaabiyaa xoogga dabacsanaanta (3 dhibcood oo qalooc ah), adkaanta (Vickers), xoogga dielectric (ASTM D149), iyo iska caabbinta shoogga kulaylka (10 wareeg, 25°C ↔ 1000°C). Ma jiraan dildilaacyo ama jajabyo lagu arki karo mikroskoob 20× ah.
Faa'iidooyinka ka badan Qaybaha Birta ama Polymer-ka:
- · 3–5× ka adag birta aan miridhku lahayn (16 GPa iyo ~2 GPa)
- · Kiimiko ahaan aan firfircoonayn — u adkaysta asiidhyada, alkalisyada, iyo halogens-ka (marka laga reebo HF)
- · Dahaarka korontada >10¹⁴ Ω·cm, taasoo suurtogalinaysa isticmaalka jawiyada danab-sare leh
- · Adeeg joogto ah ilaa 1600°C, oo aad uga sarreeya xadka biraha ama balaastikada
Habayn:
Waxaan aqbalnaa sawirrada macaamiisha (qaabka STEP/IGS) waxaanan bixinnaa qaab-dhismeed degdeg ah (2-3 toddobaad). Qaybaha waxaa lagu bixin karaa qaab sifaysan, la shiiday, la shiiday, ama la safeeyey (Ra ≤0.05 μm). Wareegga geeska, mindiyada, godadka dunta leh, iyo godadka faakiyuumka ayaa diyaar ah.
Fiiro gaar ah: Codsiyada u baahan adkaanta jabka oo sareysa, tixgeli qaybaha zirconia (ZrO₂). Si aad u hesho gudbinta kulaylka ugu sareysa, tixraac alaabadayada BeO ama Si₃N₄. Dhammaan xogta kor ku xusan waxay si adag u raacaan jadwalka hantida Al₂O₃ ee la bixiyay (heerka 99.8%).
