Izingxenye ze-Ceramic ze-Alumina ezihlanzekile kakhulu zezicelo ze-Semiconductor nezezimboni
I-St.Cera ikhiqiza izingxenye ze-ceramic ze-alumina ezisebenza ngokunemba (Al₂O₃) ngokwezidingo zamakhasimende. Isebenzisa i-alumina engu-99.8% ehlanzekile kakhulu, lezi zingxenye zinikeza amandla amahle kakhulu okugoba (361 MPa), ubulukhuni obuphezulu (16 GPa), kanye namandla aphezulu e-dielectric (15×10⁶ V/m). Yakhelwe imishini ye-semiconductor, izinhlangano ezingagugi, ama-insulator kagesi, kanye nezinto zokushisa okuphezulu, le nto inikeza ukumuncwa kwamanzi okucishe kube yi-zero (0%) kanye ne-coefficient yokukhulisa ukushisa engu-7.2×10⁻⁶/℃, okuqinisekisa ukuzinza kobukhulu ngaphansi kwezimo ezimbi kakhulu.
Imininingwane(kusekelwe ku-99.8% Al₂O₃):
Impahla | Inani |
| Izinto | I-Alumina engu-99.8% (Ivory) |
| Ubuningi | 3.93 g/cm³ |
| Amandla Okugobeka | 361 MPa |
| Ukuqina Kokuphuka | 3–4 MPa·m¹/² |
| Ukuqina kukaVickers | 16 GPa |
| I-Modulus kaYoung | 380 GPa |
| Ukuqhuba Okushisayo | 32 W/m·k |
| Ukwanda Kokushisa (25–1000°C) | 7.2×10⁻⁶/℃ |
| I-Dielectric Constant | 9.6 |
| I-Angle Yokulahlekelwa Kwe-Dielectric | 0.0001 |
| Amandla e-Dielectric | 15×10⁶ V/m |
| Ukumelana Okuqondile | >10¹⁴ Ω·cm |
| Izinga Lokushisa Eliphezulu Lokusebenza | 1600°C |
Izicelo:
- · Ama-liners egumbi lenqubo ye-semiconductor, izindawo zokubukela, kanye namapuleti okusabalalisa igesi
- · Ama-bushings angagugi, izindandatho zokuvala, namabhola okuthwala
- · Izivikeli zikagesi ezinamandla aphezulu kanye nezivikeli ze-spark plug
- · Izinto zomlilo, izisekelo ze-heater, kanye namashubhu okuvikela i-thermocouple
Inqubo Yokukhiqiza:
Ukucindezela kwe-isostatic → i-machining eluhlaza → i-sintering ku-1600°C → Ukugaya / ukugoqa ngokunemba kwe-CNC → ukuhlanza nge-ultrasonic → ukuhlolwa kobukhulu be-100% CMM. Ama-geometri ayinkimbinkimbi, izindonga ezincane (≥0.5 mm), kanye nokubekezelelana okuqinile (kuze kufike ku-±0.01 mm) kufezwa njalo.
Ikhwalithi yokulawula:
Isitifiketi se-ISO 9001:2015. Iqoqo ngalinye lihlolwa amandla okugoba (ukugoba kwamaphuzu ama-3), ubulukhuni (ama-Vickers), amandla e-dielectric (ASTM D149), kanye nokumelana nokushaqeka kokushisa (imijikelezo eyi-10, 25°C ↔ 1000°C). Akukho mifantu noma ama-chips abonakalayo ngaphansi kwe-microscopy engu-20×.
Izinzuzo ngaphezu kwezingxenye zensimbi noma ze-polymer:
- · 3–5× iqine kunensimbi engagqwali (16 GPa vs. ~2 GPa)
- · Ayisebenzi ngamakhemikhali — imelana nama-acid, ama-alkali, nama-halogen (ngaphandle kwe-HF)
- · Isivikelo sikagesi >10¹⁴ Ω·cm, esivumela ukusetshenziswa ezindaweni ezine-voltage ephezulu
- · Isevisi eqhubekayo kuze kufike ku-1600°C, edlula kakhulu imikhawulo yezinsimbi noma ipulasitiki
Ukwenza ngokwezifiso:
Samukela imidwebo yamakhasimende (ifomethi ye-STEP/IGS) futhi sinikeza i-prototyping esheshayo (amasonto ama-2-3). Izingxenye zinganikezwa njengezisikiwe, ezigayiwe, ezigoqiwe, noma ezipholishiwe (Ra ≤0.05 μm). Ukuzungeza unqenqema, ama-counterbores, izimbobo ezinezintambo, kanye nemisele ye-vacuum kuyatholakala.
Qaphela: Ngezinhlelo zokusebenza ezidinga ukuqina okuphezulu kokuqhekeka, cabanga ngezingxenye ze-zirconia (ZrO₂). Ukuze uthole ukuhanjiswa okuphezulu kokushisa, bheka imikhiqizo yethu ye-BeO noma ye-Si₃N₄. Yonke idatha engenhla ilandela ngokuqinile ithebula lempahla ye-Al₂O₃ elinikeziwe (ibanga elingu-99.8%).
