ʻO ka alumini oxide ke kumu kemika no ka alumina, kahi mea i hana ʻia me ka alumini a me ka oxygen. Ua kuhikuhi pololei ʻia ʻo ia he alumini oxide a ʻo ia ka mea i hana pinepine ʻia i kekahi mau alumini oxides. Ma waho aʻe o ka ʻike ʻia ʻana he alumina, hiki ke hele ma nā inoa aloxide, aloxite, a i ʻole alundum, ma muli o kona ʻano a me ka hoʻohana ʻana. Ke nānā nei kēia ʻatikala i ka hoʻohana ʻana o ka alumina ma ke kahua seramika.
ʻO ke kapa kila
Hoʻohana kekahi mau mea pale kino i nā pāpaʻi alumina, i hui pū ʻia me ke kākoʻo aramid a i ʻole UHMWPE, i mea e loaʻa ai ka pono e kūʻē i ka hapa nui o nā mea hoʻoweliweli. Eia naʻe, ʻaʻole i manaʻo ʻia he ʻano koa. Hoʻohui ʻia, lawelawe ia e hoʻoikaika i ke aniani alumina e kū'ē i ka hopena o nā pōkā .50 BMG.
Nā noi lāʻau lapaʻau
Hoʻohana nui ka ʻāpana biomedical i nā seramika alumina ma muli o ko lākou biocompatibility kiʻekiʻe a me ka lōʻihi e kūʻē i ka lole a me ka corrosion. Hoʻohana ʻia ka alumina ceramic ma ke ʻano he mea no ka hoʻokomo ʻana i nā niho, nā pani pani, a me nā mea lapaʻau ʻē aʻe.
Abrasive
Hoʻohana pinepine ka nui o nā mea abrasive ʻoihana i ka alumina ma muli o kona ikaika a me ka paʻakikī. Ma ka pālākiō Mohs o ka paʻakikī mineral, kona ʻano kūlohelohe, corundum, helu ʻia he 9-ma lalo iho o ke daimana. E like me nā daimana, hiki i kekahi ke ʻaʻahu i ka alumina e pale i ka abrasion. Hoʻohana ka poʻe hana uaki a me nā mea kiaʻi i ka Diamantine, ma kona ʻano pauda (keʻokeʻo) maʻemaʻe, ma ke ʻano he abrasive polū maikaʻi loa.
Ka hoʻopololei
ʻO ka alumina kahi insulator maikaʻi loa, kūpono ia no ka hoʻohana ʻana i nā noi kiʻekiʻe-mehana a kiʻekiʻe. Hoʻohana ʻia ia ma ke ʻano he substrate (silicon on sapphire) a me kahi pale tunnel i nā kaʻa i hoʻohui ʻia e hana i nā mea hana superconducting e like me ka transistors electron hoʻokahi, superconducting quantum interference device (SQUIDs), a me nā qubits superconducting.
wili
Hoʻohana pū ka ʻāpana seramika i ka alumina ma ke ʻano he mea wili. ʻO ka alumina ka mea kūpono e hoʻohana ai i nā noi wili ma muli o kona paʻakikī a me ke kūpaʻa ʻana. ʻO nā wili kinipōpō, nā wili vibratory, a me nā mīkini wili ʻē aʻe e hoʻohana i ka alumina ma ke ʻano he mea wili.
Ka hopena
ʻOiai ua ʻike nui ʻia ka alumina no kona hoʻohana ʻana i ka hana alumini, he mea koʻikoʻi nō hoʻi ia i nā māla seramika. He mea kūpono ia no kēia mau noi ma muli o kona wahi hoʻoheheʻe kiʻekiʻe, nā waiwai wela a me nā mechanical, insulating properties, wear resistance, a me ka biocompatibility.
