He aha nā ʻano a me nā mea hana o nā kānana ceramic foam?

ʻO nā mea kumu o ka kānana ceramic foamkalapona kalapona, zirconium oxide a me ka alumina
Loaʻa i ka kānana ceramic kānana ka hopena kānana maikaʻi ma ke keleawe a i ʻole ka wai hao, e hoʻohana ana i ka hoʻolālā ʻekolu-dimensional, e hoʻoneʻe maikaʻi i nā huila oxidized a me nā hui non-metallic ʻē aʻe, ke kāohi ʻana i ka hopu a me ka adsorption. Inā he hao hina, hao ductile a kumu paha, cylinder a i ʻole ʻāpana nui paʻakikī, kānana ʻia nā ʻāpana hoʻoheheʻe pololei, ʻoi aku ka maikaʻi o ka huahana.
ʻO nā kānana ʻōhua seramikakūpono no ke keleawe, keleawe, keleawe a me nā mea keleawe ʻē aʻe, e hōʻemi ana i ka turbulence wai keleawe a hoʻoponopono a hoʻomaʻemaʻe i ke kila hoʻoheheʻe. ʻOi aku ka waiwai o ka hoʻonui nui ʻana o ke ola lawelawe o nā hoʻoheheʻe keleawe ma nā wahi koi nui a paʻakikī paha e like me nā turbines moku moana, nā ʻāpana kemika, a me nā mea ʻē aʻe. He kuleana koʻikoʻi nō hoʻi nā kānana seramika foam i ka hana keleawe kuʻuna, ka hana keleawe uila a me ka hoʻolei ʻana a me nā kaʻina hana. Ma muli o ka hapa nui o ke keleawe a me nā alloys, me ka zinc alloys, e hoʻoulu ai i ka haʻalulu wela i ka wā o ka hoʻolei ʻana, ʻo ka hoʻohana ʻana i nā kānana seramika silicon carbide foam amalgamated ceramic maʻamau i nā kānāwai koʻikoʻi i ka nui.
Mea waiwai
ʻO ka mea kumu no nā kānana seramika i hoʻomaʻemaʻe ʻia Zr02.nā kānana zirconialoaʻa i kahi mahana wela ʻoi aku ma mua o 1760 ° C, ikaika kiʻekiʻe a me ka hopena wela kiʻekiʻe.
Hoʻohana nui ʻia nā ʻāpana kila kila kahi e koi ʻia ai ka ikaika kiʻekiʻe a me ka elongation. No laila, paʻakikī loa nā ʻāpana kila i ka haumia-i hoʻokomo ʻia i ka pōkole pōkole, a ʻo nā hiʻohiʻona maikaʻi loa o nā kānana ceramic foam hiki ke hoʻopau pono i nā haumia e alakaʻi i ka maikaʻi o ka huahana pōkole-circuiting. Hoʻokumu ʻia nā mea haumia i nā ʻāpana non-metallic, slag a me nā ʻōpala refractory, e hoʻomaikaʻi ai i ka maikaʻi o ka ʻili a me nā waiwai mechanical o ka hoʻolei ʻana a hoʻemi i ka helu ʻōpala.
Hiki i ke kānana ʻōhua seramika ke hoʻopiha i ke kila wai i ka lua, a ʻoi aku ka kiʻekiʻe o ka metala i hoʻoheheʻe ʻia i ka turbulence i ke kaʻina ninini. ʻO ka hoʻolālā pore ʻekolu-dimensional o kakānana ʻōhua seramikaUa hoʻololi ʻia ke kahe ʻino i loko o ke kahe laminar paʻa loa. ʻOi aku ka maikaʻi o ka hoʻopiha ʻana o ka laminar i ka lua, no laila e hōʻemi i ka hopena o ka hopena o ka hopena metala ma ka lua hoʻolei a hoʻemi nui i ka nui o ka ʻōpala.