ʻO ka porous ceramic kahi kino non-metallic pauka i hoʻopaʻa ʻia i loko o ka nui o nā lua..ʻO ka ʻokoʻa koʻikoʻi mai nā mea hao ʻole (dense ceramics) ʻo ia ka loaʻa ʻana o nā lua (pores) a me ka pākēneka o nā puka (pores) i loko.E like me ke ʻano hana pore-forming a me nā voids, hiki ke hoʻokaʻawale ʻia nā ceramics porous i: foamed ceramics, honeycomb ceramics, a me granular ceramics.
Ma muli o ka noho ʻana o kekahi mau pores, ua hoʻololi nui ʻia ke ʻano, nā waiwai a me nā hana o nā seramika porous.Ke hoʻohālikelike ʻia me nā seramika paʻa, ʻelima mau hiʻohiʻona ka porous ceramics:
1. Liʻiliʻi puʻupuʻu puʻupuʻu a me ka māmā kaumaha.
2. Nui ili kiko'ī a me ka hana kānana maikaʻi.
3. Haʻahaʻa thermal conductivity, maikaʻi wela a me ke kani insulation waiwai.
4. Kemika maikaʻi a me ka paʻa kino, hiki ke hoʻololi i nā ʻano ʻino like ʻole, loaʻa ka ikaika mechanical a me ka ʻoʻoleʻa, a me ke kūpaʻa wela maikaʻi.
5. He maʻalahi ka hana a he haʻahaʻa ke kumukūʻai.
1. Hoʻohana ʻia i nā mea kānana a me ka hoʻokaʻawale ʻana
ʻO ka mea kānana i haku ʻia me nā huahana pāpaʻa a i ʻole nā huahana tubular o nā seramika porous he mau hiʻohiʻona o ka wahi kānana nui a me ka pono kānana kiʻekiʻe.Hoʻohana nui ʻia ia i ka hoʻomaʻemaʻe ʻana i ka wai, ka hoʻokaʻawale ʻana a me ka kānana ʻana o ka aila, a me ka hoʻokaʻawale ʻana i nā mea hoʻonā organik, nā hopena acid-base, nā wai viscous ʻē aʻe a me ka ea paʻa, coke umu kinoea, mahu, methane, acetylene a me nā kinoea ʻē aʻe.No ka mea, ʻo ka porous ceramics ka maikaʻi o ke kūpaʻa wela kiʻekiʻe, ke kūpaʻa ʻana, ke kūpaʻa kino kino, a me ka ikaika mechanical kiʻekiʻe, ke hōʻike nui nei lākou i ko lākou pono kūʻokoʻa i nā kahua noi o nā wai corrosive, nā wai wela kiʻekiʻe, a me nā metala hoʻoheheʻe.
2. Hoʻohana ʻia i ke kani hoʻoheheʻe ʻana a me ka mea hoʻohaʻahaʻa leo
Ma ke ʻano he mea hoʻoheheʻe leo, hoʻohana nui ka porous ceramics i kāna hana diffusion, ʻo ia hoʻi, e hoʻopuehu i ke kaomi ea i hoʻokumu ʻia e nā hawewe kani ma o ke ʻano porous e hoʻokō ai i ke kumu o ke kani kani.Pono nā seramika porous e like me nā mea hoʻoheheʻe leo i ka nui pore liʻiliʻi (20-150 μm), porosity kiʻekiʻe (ma luna o 60%) a me ka ikaika mechanical kiʻekiʻe.Ua hoʻohana ʻia nā seramika porous i nā hale kiʻekiʻe, nā tunnels, nā subways a me nā wahi ʻē aʻe me nā pono pale ahi kiʻekiʻe loa, a me nā wahi me nā koi hoʻokaʻawale leo kiʻekiʻe e like me nā kikowaena TV a me nā hale kiʻiʻoniʻoni.
3. Hoʻohana ʻia i ka mea lawe catalyst ʻoihana
No ka loaʻa ʻana o ka mana adsorption maikaʻi a me ka hana o ka porous ceramics, ma hope o ka uhi ʻia ʻana me ka catalyst, e hoʻomaikaʻi maikaʻi ʻia ka maikaʻi o ka hoʻololi ʻana a me ka wikiwiki o ka hopena ma hope o ka hele ʻana o ka wai pane i nā pores o nā seramika porous.I kēia manawa, ʻo ka manaʻo noiʻi o ka porous ceramics e like me ke kākoʻo catalyst ʻo ia ka inorganic separation catalytic membrane, ka mea e hui pū ai i ka hoʻokaʻawale a me nā waiwai catalytic o nā mea porous ceramic, a no laila he ākea ākea o ka noi.
4. Hoʻopili ʻia i nā ʻāpana uila koʻikoʻi
ʻO ke kumu hana o ka sensor humidity a me ke kinoea sensor element o ka ceramic sensor ʻo ia ke waiho ʻia ka microporous ceramic i loko o kahi kinoea a i ʻole ka wai wai, hoʻopili ʻia kekahi mau mea i loko o ke kikowaena e ke kino porous, a me ka hiki a i ʻole kēia manawa. aia ka microporous ceramic i kēia manawa.hoʻololi e ʻike i ke ʻano o ke kinoea a i ʻole ka wai.Loaʻa i nā mea ʻike ceramic nā hiʻohiʻona o ke kūpaʻa wela kiʻekiʻe, ka pale ʻana i ka corrosion, ke kaʻina hana maʻalahi, ka hoʻāʻo koʻikoʻi a me ka pololei, etc., a hiki ke kūpono i nā manawa kūikawā he nui.
Ka manawa hoʻouna: ʻAukake-11-2022