Akụkụ seramiiki Alumina dị ọcha nke ukwuu maka Semiconductor na ngwa ụlọ ọrụ mmepụta ihe
St.Cera na-emepụta akụkụ seramiiki alumina (Al₂O₃) nke e ji ígwè rụọ dịka nkọwa ndị ahịa si dị. Site na iji alumina dị ọcha nke 99.8%, ihe ndị a na-enye ike flexural dị mma (361 MPa), ike siri ike dị elu (16 GPa), na ike dielectric pụrụ iche (15 × 10⁶ V/m). Emebere ya maka ngwa semiconductor, mgbakọ ndị na-eguzogide iyi, ihe mkpuchi eletriki, na ihe ndozi okpomọkụ dị elu, ihe a na-enye mmiri fọrọ nke nta ka ọ bụrụ efu (0%) na oke mgbasawanye okpomọkụ nke 7.2 × 10⁻⁶/℃, na-eme ka akụkụ kwụsie ike n'okpuru ọnọdụ dị oke njọ.
Nkọwapụta(dabere na 99.8% Al₂O₃):
Akụ na ụba | Uru |
| ihe | 99.8% Alumina (Ivory) |
| Njupụta | 3.93 g/cm³ |
| Ike nke Flexural | 361 MPa |
| Ike Mgbaji | 3–4 MPa·m¹/² |
| Ike Vickers | 16 GPA |
| Modulu nke Young | 380 GPA |
| Ọgbakọ okpomọkụ | 32 W/m·k |
| Mgbasawanye Okpomọkụ (25–1000°C) | 7.2 × 10⁻⁶/℃ |
| Dielectric Constant | 9.6 |
| Nkuku Mfu Dielectric | 0.0001 |
| Ike Dielectric | 15 × 10⁶ V/m |
| Nguzogide Pụrụ Iche | >10¹⁴ Ω·cm |
| Oke Okpomọkụ Ọrụ Kachasị | 1600°C |
Ngwa:
- · Ihe mkpuchi ụlọ ọrụ semiconductor, ọdụ ụgbọ mmiri, na efere nkesa gas
- · Mkpọchi ndị na-adịghị eyi, mgbaaka mkpuchi, na bọọlụ ndị na-ebu ibu
- · Ihe mkpuchi eletriki dị elu na ihe mkpuchi ọkụ eletrik
- · Ihe ndị e ji etinye ọkụ n'ọkụ, ihe nkwado okpomọkụ, na ọkpọkọ nchebe thermocouple
Usoro Mmepụta:
Isostatic pressure → green machining → sintering na 1600°C → CNC comprehensive grinding/lapping → ultrasonic Cleaning → 100% CMM dimensions. A na-enweta geometrị dị mgbagwoju anya, mgbidi dị gịrịgịrị (≥0.5 mm), na nguzogide siri ike (ruo ±0.01 mm).
Njikwa Ogo:
Asambodo ISO 9001: 2015. A na-anwale ogbe ọ bụla maka ike flexural (ngbagọ isi atọ), ike siri ike (Vickers), ike dielectric (ASTM D149), na iguzogide ujo okpomọkụ (usoro 10, 25°C ↔ 1000°C). A naghị ahụ mgbawa ma ọ bụ ibe n'okpuru igwe nyocha 20×.
Uru karịa Akụkụ Metal ma ọ bụ Polymer:
- · 3–5× siri ike karịa ígwè anaghị agba nchara (16 GPa vs. ~2 GPa)
- · Na-anaghị arụ ọrụ nke ọma — na-eguzogide asịd, alkalis, na halogens (ma e wezụga HF)
- · Ihe mkpuchi eletriki >10¹⁴ Ω·cm, nke na-eme ka ojiji dịrị na gburugburu voltaji dị elu
- · Ọrụ na-aga n'ihu ruo 1600°C, gafere oke nke ọla ma ọ bụ plastik
Nhazi:
Anyị na-anabata eserese ndị ahịa (usoro STEP/IGS) ma na-enye nhazi ngwa ngwa (izu 2-3). Enwere ike inye akụkụ ndị ahụ dị ka ihe e ji sintetik mee, gwerie ya, gwerie ya, ma ọ bụ kpụchaa ya (Ra ≤0.05 μm). Enwere ike ịchọta okirikiri n'akụkụ, ihe mgbochi, oghere eriri, na oghere vacuum.
Rịba ama: Maka ngwa ndị chọrọ ike mgbawa dị elu, tụlee akụkụ zirconia (ZrO₂). Maka ike okpomọkụ kachasị elu, lee ngwaahịa BeO ma ọ bụ Si₃N₄ anyị. Data niile dị n'elu na-agbaso kpọmkwem tebụl ihe onwunwe Al₂O₃ enyere (ọkwa 99.8%).
