Ke ʻimi nei i ka waiwai o nā mea hao metala

ʻO ka pahu metala kahi ʻano mea metala porous e hoʻokumu i nā ʻano he nui ʻekolu-dimensional spatial mesh i loko o ka matrix metala, ʻike ʻia hoʻi ʻo ka porous metal foam, i loaʻa ka manaʻo nui ma ka home a ma waho ma muli o kona hui pū ʻana o nā waiwai metala a me kekahi kino kūikawā. nā waiwai o nā metala ʻole. I nā makahiki he 50 i hala iho nei, ua nui ka holomua i ka hoʻomohala ʻana i ka pahu metala, ka hoʻomohala ʻana i ka noi a me ke aʻo ʻana o nā ʻano hana.
ʻO ka hui pū ʻana o "foam" a me "metal" ʻelua mau manaʻo, ʻaʻole hiki iā mākou ke kōkua akā noʻonoʻo i kahuʻa metalaHoʻohui ka mea i nā pono o kēia mau mea ʻelua: ka mālama ʻana i ka ductility maikaʻi o ka metala, weldability a me ka conductivity uila i ka manawa like, me ka absorption ikehu a me ka haʻalulu absorption, ka hoʻohaʻahaʻa leo leo, ka hanu a me ka wai permeable, a me nā pono kūikawā ʻē aʻe.
Mea hao haoAia i loko o nā pores iwi metala, ʻaʻole kūlike ka hui, i ka wā e hoʻokau ʻia ai ke kaomi o waho, aia ʻekolu mau pae deformation, ʻo ia hoʻi, ka pae elastic deformation, brittle breaking stage a me ka compact stage, no laila ke kau ʻia ka mea metala i ka hopena, ka ʻO ke koʻikoʻi ua ʻike ʻia ka lohi ʻana ma hope o ke koʻikoʻi, i loko o ke koʻikoʻi-strain curve he manawa lōʻihi o ka ʻāina pāpū. ʻAʻole hiki iā ia ke komo i ka ikehu hou aʻe, akā hiki iā ia ke pale aku i ke koʻikoʻi luku kiʻekiʻe, he mea me ka hopena maikaʻi loa. Ua hōʻike ʻia e hiki ke hoʻopaʻa i ka ikehu o 0.05 ~ 0.15 o ka pahu alumini i ka ikehu o 20 ~ 180 MJ / m2. ʻO ka hoʻohana ʻana i kāna hopena hopena maikaʻi loa, i hiki ai i kapahu aluminiHiki ke hoʻohana ʻia ma ke ʻano he kaʻa kaʻa, ka pae pae ʻana o ka moku ākea, nā cushions palekana conveyor elevator, nā pahu pahu like ʻole, a me nā rockets a me nā mīkini jet, nā mea pale. Aia ka pahu metala ma ka waena o ka sanwiti o nā papa ʻelua no ka hoʻoulu ʻana a me nā kumu nani.
E pili ana i nā ʻano mea porous ʻē aʻe, ʻoi aku ka maikaʻi o ka hoʻoheheʻe ʻana o ka metala, me kahi hiki ke kākoʻo ponoʻī iā ia iho a me nā mea maikaʻi o kahi ākea ākea e hāʻawi i kahi ākea ākea hoʻoili hoʻoili kemika, hiki i ka porous foam electrode structure ke hoʻomaikaʻi nui i ka porosity o ka electrode, hiki ke hoʻopiha ʻia me nā mea ʻoi aku ka ikaika, e hoʻonui i ka hiki o ka pākaukau i mea e hoʻemi nui ʻia ka electrode o ka density maoli o kēia manawa no ke aʻo ʻana i ka ikehu kikoʻī kiʻekiʻe, ke ola lōʻihi, nā mea uila uila māmā. hāʻawi i kahi hiki. No laila, lilo ka ʻūhā metala i mea electrode maikaʻi loa, kūpono ia no nā ʻano ʻokoʻa like ʻole o ka mālama ʻana i nā ʻeke, nā wahie wahie, nā ea a me nā pūnaewele lā.
Spongehuʻa metalaLoaʻa i nā mea waiwai kēia mau waiwai ʻekolu i ka manawa like: ke kūpaʻa kiʻekiʻe o ka wela, ʻoiai inā ʻaʻole heheʻe ka wela i ka helu heheʻe o ka mea hao kumu; i ka manawa like, loaʻa iā ia ka ʻili iwi maʻemaʻe a me nā mea homogeneous, a me nā mea metala ʻole porous me nā mea like me ka wela a me nā waiwai anti-oxidation; he permeability ka hale hamama-pore. Hiki ke hoʻohana ʻia kēia ʻano o ka titanium foam material, ka mea e hui pū ai i ka wela wela wela, ka pale ʻana o ka oxidation a me ka permeability, no ka holoi ʻana i ka lepo ma lalo o nā kūlana wela. He ʻano like ke ʻano, he haiki ka nui o ka pore, a he kiʻekiʻe ka hoʻokaʻawale ʻana.