Ke ʻimi nei i nā waiwai o ka porous silicon carbide ceramics

ʻO nā mea kūikawā o ka porous silika carbide seramikaʻO ka mea nui ma muli o kāna ʻano porous kūikawā, aia ka porosity, ka nui o ka pore a me ka hāʻawi ʻana, a me ke ʻano o nā lua. No laila, pono e hoʻoponopono i kona porosity, ka nui o ka pore a me ka hāʻawi ʻana, a me ke ʻano pore ma o ke ʻano hoʻomākaukau no ka loaʻa ʻana o ka hale porous i makemake ʻia. No laila, ʻo kāna ʻano hoʻomākaukau ke kumu o ka noiʻi.

Nā waiwai o nā seramika SiC porous

1.waiwai pore

①Porosity

ʻO ka porosity ka pākēneka o ka leo i noho ʻia e nā pores i loko o kahi mea porous i ka nui o ka nui o nā mea porous (me nā pores hāmama, pores hapalua a me nā pores pani o 3 ʻano). Hōʻike ka noiʻi e pili ana ka hana o nā mea porous i ka porosity.

② Pore morphology

ʻO ka pore morphology e pili ana i ka morphology o nā pores i loko o nā ceramics porous. Ke hoʻohālikelike ʻia nā pores, isotropic ka hana holoʻokoʻa o ka mea; akā, i ka wā e ʻoniʻoni a palahalaha paha nā pores, e like me ka carbonization o ka lāʻau i hoʻomākaukau ʻia e ka hopena silika e sintering porous SiC ceramics, ʻo ke ʻano o ka pore kahi kuhikuhi.

③Pore ​​anawaena a me ka mahele

ʻO ke anawaena pore ma lalo o 2nm no nā mea microporous, ka nui o ka pore ma waena o 2 ~ 50nm no nā mea mesoporous, ka nui ma mua o 20nm no nā mea macroporous. Ma ka nui o ka pore a me ka hoʻolaha ʻana i ka hopena nui o ka hana, me ka permeability, permeability rate a me ka hana kānana.

2.Nā waiwai mīkini

Porous SiC keramikapalupalu nā mea a ʻike pinepine ʻia ko lākou mau ʻano mechanical e ka piko a i ʻole ka ikaika hoʻoemi. He hopena nui ka porosity a me ke ʻano o ka hoʻomākaukau ʻana i nā waiwai mechanical o ka porous SiC ceramics.

3.ʻO ka hoʻoili wela

He hopena nui ka porosity a me ka pore morphology i ka conductivity thermal o nā ceramics porous. No nā seramika porous me ka puʻunaue like ʻole o ka pore, e emi mālie ka conductivity thermal i ka piʻi ʻana o ka pore rate. Eia nō naʻe, ma muli o ka pore morphology o nā mea seramika porous i hoʻomākaukau ʻia e nā kaʻina hana like ʻole, aia nā ʻokoʻa nui, no laila ke ʻano like ʻole a paʻakikī ke kaʻina hoʻoili wela.

ʻO nā seramika SiC porousLoaʻa iā ia nā waiwai kino maikaʻi loa o SiC ponoʻī, e like me ke kiʻekiʻe o ka nui, ka ʻāpana kikoʻī kikoʻī kiʻekiʻe, ka paʻakikī kiʻekiʻe, ka pale ʻana i ka corrosion, ke kūpaʻa wela kiʻekiʻe, ka conductivity thermal kiʻekiʻe, ka haʻahaʻa haʻahaʻa o ka hoʻonui ʻana i ka wela, a me ke kūʻē i ka haʻalulu wela, ma luna o ka ʻoluʻolu o ke ʻano porous o nā seramika.