Nā ʻĀpana Seramika Alumina Maʻemaʻe Kiʻekiʻe no nā Noi Semiconductor a me nā ʻOihana
Hana ʻo St.Cera i nā ʻāpana keramika alumina (Al₂O₃) i hana ʻia me ka mīkini kikoʻī e like me nā kikoʻī o ka mea kūʻai aku. Me ka hoʻohana ʻana i ka 99.8% alumina maʻemaʻe kiʻekiʻe, hāʻawi kēia mau ʻāpana i ka ikaika flexural maikaʻi loa (361 MPa), ka paʻakikī kiʻekiʻe (16 GPa), a me ka ikaika dielectric koʻikoʻi (15 × 10⁶ V/m). Hoʻolālā ʻia no nā lako semiconductor, nā ʻākoakoa pale ʻaʻahu, nā insulators uila, a me nā mea paʻa wela kiʻekiʻe, hāʻawi ka mea i ka omo wai kokoke i ka zero (0%) a me kahi coefficient hoʻonui wela o 7.2 × 10⁻⁶/℃, e hōʻoiaʻiʻo ana i ke kūpaʻa dimensional ma lalo o nā kūlana koʻikoʻi.
Nā kikoʻī(ma muli o 99.8% Al₂O₃):
Waiwai | Waiwai |
| Mea Hana | 99.8% Alumina (ʻAiwi ʻelepani) |
| Ka nui o ka paʻa | 3.93 g/cm³ |
| Ikaika Flexural | 361 MPa |
| Paʻakikī o ka haki | 3–4 MPa·m¹/² |
| Paʻakikī Vickers | 16 GPa |
| Modulus o Young | 380 GPa |
| Ka Hoʻokele Wela | 32 W/m·k |
| Hoʻonui Wela (25–1000°C) | 7.2×10⁻⁶/℃ |
| Paʻa Dielectric | 9.6 |
| ʻO ke kihi pohō Dielectric | 0.0001 |
| Ikaika Dielectric | 15×10⁶ V/m |
| Ke kū'ē kiko'ī | >10¹⁴ Ω·cm |
| Mahana Hana Loa | 1600°C |
Nā noi:
- · Nā liners keʻena hana semiconductor, nā viewports, a me nā papa hoʻolaha kinoea
- · Nā ʻūpā pale ʻaʻahu, nā apo sila, a me nā pōpō hali
- · Nā mea hoʻokaʻawale uila kiʻekiʻe a me nā mea hoʻokaʻawale plug huna ahi
- · Nā mea hana umu ahi, nā kākoʻo hoʻomehana, a me nā paipu pale thermocouple
Kaʻina Hana Hana:
Kaomi ʻana o Isostatic → mīkini ʻōmaʻomaʻo → sintering ma 1600°C → wili pololei CNC / lapping → hoʻomaʻemaʻe ultrasonic → nānā ʻana o ka dimensional CMM 100%. Hoʻokō mau ʻia nā geometries paʻakikī, nā paia lahilahi (≥0.5 mm), a me nā hoʻomanawanui paʻa (a hiki i ±0.01 mm).
Mana Hoʻomalu Kūlana:
Ua hōʻoia ʻia ʻo ISO 9001:2015. Hoʻāʻo ʻia kēlā me kēia pūʻulu no ka ikaika flexural (3 point bend), paʻakikī (Vickers), ikaika dielectric (ASTM D149), a me ke kūpaʻa haʻalulu wela (10 mau pōʻaiapuni, 25°C ↔ 1000°C). ʻAʻohe māwae a ʻāpana paha i ʻike ʻia ma lalo o ka microscopy 20×.
Nā Pōmaikaʻi ma luna o nā ʻĀpana Metala a Polymer paha:
- · 3–5× ʻoi aku ka paʻakikī ma mua o ke kila kila (16 GPa vs. ~2 GPa)
- · ʻAʻohe hana kemika - kū i nā waikawa, alkalis, a me nā halogens (koe naʻe ʻo HF)
- · Mea hoʻokaʻawale uila >10¹⁴ Ω·cm, e hiki ai ke hoʻohana ʻia i nā wahi uila kiʻekiʻe
- · Ka lawelawe mau a hiki i ka 1600°C, ʻoi aku ka nui ma mua o nā palena o nā metala a i ʻole nā plastics
Hoʻopilikino ʻana:
ʻAe mākou i nā kiʻi a nā mea kūʻai aku (ʻano STEP/IGS) a hāʻawi i ka prototyping wikiwiki (2-3 pule). Hiki ke hoʻolako ʻia nā ʻāpana ma ke ʻano he sintered, wili ʻia, lapped, a poli ʻia paha (Ra ≤0.05 μm). Loaʻa nā ʻāpana edge rounding, counterbores, threaded holes, a me nā vacuum grooves.
Nānā: No nā noi e koi ana i ka paʻakikī haki kiʻekiʻe, e noʻonoʻo i nā ʻāpana zirconia (ZrO₂). No ka conductivity thermal kiʻekiʻe loa, e nānā i kā mākou huahana BeO a i ʻole Si₃N₄. ʻO nā ʻikepili a pau ma luna nei e hahai pono ana i ka papa waiwai Al₂O₃ i hāʻawi ʻia (99.8% grade).
