Nā ʻōwili keramika Alumina: Nā noi like ʻole e hoʻoikaika ana i ka maikaʻi o ka ʻoihana mahana kiʻekiʻe

I ka hana ʻana i ke ana wela kiʻekiʻe, mau nō ke koi no nā ʻāpana paʻa a hilinaʻi hoʻi.Nā wili keramika aluminakū i waho, e hoʻohana ana i nā waiwai kūikawā e hoʻonui i ka pono ma nā ʻoihana like ʻole—mai ka hoʻomaʻamaʻa ʻana i ke aniani a i ka hana semiconductor. Hoʻololi hou kēia mau ʻāpana ikaika i ka hana ma nā wahi koʻikoʻi. E ʻimi kākou i kā lākou mau noi koʻikoʻi e hoʻolilo iā lākou i mea nui no ka hana ʻana o kēia au.
1. Hoʻohana Koʻikoʻi: Nā Uila Hana Keramika a me ke Aniani

ʻO nā ʻoihana keramika a me ke aniani nā mea hoʻohana mua, kahi e hana ai kēia mau wili i ke kua o nā ʻōnaehana umu wili. I loko o nā tile keramika, nā mea hoʻomaʻemaʻe, a me ka hana porcelain, lawe lākou i nā huahana ma o ke ahi wela kiʻekiʻe (a hiki i 1400°C+). ʻO ko lākou ikaika wela kiʻekiʻe a me ka hoʻonui wela haʻahaʻa e pale aku i ka deformation a me ka warping huahana, e hōʻoiaʻiʻo ana i ka maikaʻi mau.

No ka hana ʻana i ke aniani (tempering, annealing, melting), ʻoi aku ka maikaʻi o nā wili keramika alumina i nā wahi umu. ʻAʻole e like me nā mea ʻē aʻe o ka metala, kūʻē lākou i ka pala o ke aniani heheʻe a mālama i ke kūpaʻa o ka dimensional, e hiki ai ke lawe maʻalahi i ka pepa aniani me ka ʻole o ka haumia—koʻikoʻi no ka hana ʻana i ke aniani hoʻolālā a me ka optical, e hoʻonui ana i nā hua a me ka hōʻemi ʻana i ka downtime.

2. Ka Lapaʻau Wela Kiʻekiʻe a me ka Metallurgy

Pono ka mālama wela (annealing, quenching, sintering) i nā ʻāpana e kū i nā loli o ka mahana a me ka wela nui. Hoʻohana nui ʻia nā wili keramika alumina i loko o nā umu mālama wela non-ferrous (zinc, alumini, keleawe) a me nā mea hao. ʻO ko lākou kūpaʻa haʻalulu wela maikaʻi loa (500°C nā loli koke) a me ke kūpaʻa oxidation e kūpono iā lākou no ka lawe ʻana i nā ʻāpana hana ma o kēia mau kaʻina hana.

I ka metallurgy (hoʻoheheʻe ʻole-ferrous, hana mineral), hana lākou ma ke ʻano he mau conveyor pale ʻaʻahu. Me ka paʻakikī Mohs o 9 (ʻelua wale nō i ka daimana), kūʻē lākou i ka abrasion, e hoʻolōʻihi ana i ke ola o nā lako ma mua o nā wili hao kuʻuna.

3. Hana Hana Semiconductor a me nā Mea Uila

Hoʻohana ʻia nā wili seramika alumina, me ka insulation uila kūikawā (resistivity volume a hiki i ka 10¹⁴Ω・cm) a me nā haumia haʻahaʻa, i ka lawelawe ʻana i nā wafer. Hiki iā lākou ke hoʻokō i ka pololei o ke kau ʻana o ±1μm, e hōʻemi ana i ka haumia a hoʻomaikaʻi i nā hua chip.

Kūpono ko lākou inertness kemika i nā umu sintering ʻāpana uila, e lawe ana i nā ʻāpana koʻikoʻi (capacitors, resistors) me ka ʻole o nā hopena, e lilo ana lākou i mea nui o ka ʻoihana.

4. Ka Hana ʻana i ka Ikehu Hou a me ka Pākahiko

I ka ulu ʻana o ka ʻoihana ikehu hou, he mea koʻikoʻi kēia mau wili i ka hana ʻana o ka pila—mai ka sintering cathode/anode a i ka mālama ʻana i ka wela o ke kelepona. Kū lākou i 1600°C a kūʻē i ka pala electrolyte, ʻoiai ʻo ka conductivity thermal haʻahaʻa e hōʻoiaʻiʻo ana i ka mahana like o ka umu, e hōʻoiaʻiʻo ana i ka hana a me ka palekana o ka pila.

Hoʻohana ʻia nō hoʻi lākou i ka hana ʻana i nā cell wahie hydrogen, e kūʻē ana i ka hydrogen embrittlement a mālama i ke kūpaʻa o ka mahana kiʻekiʻe, e kākoʻo ana i ka ulu ʻana o ka ikehu maʻemaʻe.

5. Nā Mea Hana Aerospace a me ka Precision

Manaʻo ka ʻoihana mokulele i ko lākou māmā (3.5g/cm³, hapalua kila) a me ka ikaika kiʻekiʻe, e hoʻohana ana iā lākou i ka mālama ʻana i ka wela o ka ʻenekini a me nā ʻano ukali e hōʻemi i ke kaumaha me ka mālama ʻana i ka pono, e hoʻonui ana i ka pono o ka wahie a me ka hiki ke ukana.

I nā mea hana pololei (optical, nā mea lapaʻau), ʻo kā lākou pololei micron-level (≤2μm ka lōʻihi hewa no nā wili 200mm) e hōʻoiaʻiʻo i ka hana maʻalahi. Kūpono pū ka biocompatibility i nā hoʻohana lapaʻau e like me nā implants niho.