Nā Pōpō Wili Keramika Alumina Kiʻekiʻe: Media Wili Hana Kiʻekiʻe

Alumina kiʻekiʻenā pōpō wili keramika aluminahe mau mea keramika ʻenekinia holomua i haku ʻia me ka alumini oxide (Al₂O₃), maʻamau me ka ʻike ma mua o 90%. Hōʻike lākou i ka paʻakikī kiʻekiʻe, ke kūpaʻa ʻana i ka ʻaʻahu kiʻekiʻe, ke kūpaʻa kemika maikaʻi loa, a me ka haumia haʻahaʻa, e hoʻohana nui ʻia ai i nā kaʻina wili pulu a maloʻo paha no nā ʻoihana e like me nā keramika, nā pena, nā kemika, ka mining, a me nā mea uila. Me ka nui ma luna o 3.6 g/cm³ a ​​me ka paʻakikī Vickers a hiki i ka HV1500 a ʻoi aku paha, hoʻonui nui lākou i ka pono o ka wili ʻana me ka hoʻemi ʻana i ka hoʻohana ʻana i ka media.

ʻO ko lākou mau pono nui e pili ana i ka hoʻomaikaʻi nui ʻana i ka pono o ka wili ʻana a me ka hana waiwai. ʻO ka paʻakikī kiʻekiʻe (Mohs hardness grade 9) e hōʻoia i ka wikiwiki o ka pulverization o nā mea paʻakikī; hāʻawi kahi microstructure like i nā helu ʻaʻahu kūlike a hoʻolōʻihi i ke ola lawelawe. ʻO ka inertness kemika maikaʻi loa e ʻae i ke kūʻē ʻana i nā waikawa ikaika a me nā alkalis, e pale ana i ka haumia o nā mea lepo. ʻO ke koena hao haʻahaʻa loa (ma lalo o 0.01%) e hana iā lākou i kūpono loa no nā noi maʻemaʻe, e like me nā mea pākahi lithium, nā glazes kiʻekiʻe, a me nā keramika uila.

ʻO ke kaʻina hana hana e pili ana i ka hoʻomākaukau ʻana i ka pauka i kāohi pono ʻia, ke kaomi isostatic, a me ka sintering wela kiʻekiʻe e hoʻokō ai i ka densification kiʻekiʻe, e hōʻoia ana i ka porosity haʻahaʻa a me ka paʻakikī haki kiʻekiʻe. Uhi ka nānā ʻana i ka maikaʻi i ka pololei o ka dimensional, sphericity, paʻakikī, a me ke kū'ē ʻana i ka hopena e hoʻokō ai i nā koi o nā lako wili like ʻole a me nā kūlana hana. ʻO ke koho kūpono o nā kikoʻī (e laʻa, nā diameters mai 1mm a 50mm) a me nā lakio hoʻopiha hiki ke hoʻomaikaʻi hou i ka fineness wili a me ka pono o ka hoʻohana ʻana i ka ikehu.

Me ka hoʻonui ʻia ʻana o nā koi no ka nui o nā ʻāpana maikaʻi a me ka maʻemaʻe kiʻekiʻe i ka hoʻonui ʻana i ka ʻoihana, ua lilo nā pōpō wili keramika alumina kiʻekiʻe i mea wili pono ʻole i nā ʻāpana kemika hou a me nā mea hou. Ma ka hoʻomaikaʻi ʻana i ka maikaʻi o ka huahana a me ka hoʻemi ʻana i nā kumukūʻai holoʻokoʻa, hāʻawi lākou i kahi hopena loea hilinaʻi no nā ʻoihana hana kikoʻī. I ka wā e hiki mai ana, ʻo ka hoʻonui ʻana i nā ʻano mea a me nā holomua i ka ʻenehana hoʻololi ʻili e hoʻonui hou aku i kā lākou noi.