ʻO ka hoʻomākaukau ʻana a me nā waiwai o ka silicon carbide ceramics ma o ka sintering reaction

ʻO Silicon carbide (SiC) kahi hui covalent i hoʻokumu ʻia me ke kalapona a me ke silika a ua ʻike ʻia no kāna mau waiwai maikaʻi loa, me ka pale ʻana i ka lole kiʻekiʻe, ke kūpaʻa haʻalulu wela, ke kūpaʻa corrosion ikaika a me ka conductivity thermal kiʻekiʻe. Hoʻolilo kēia mau waiwai i ka silicon carbide i mea kūpono no nā ʻano noi i nā ʻoihana he nui, e like me ka aerospace, ka hana mīkini, nā petrochemical, ka hoʻoheheʻe metala a me nā mea uila. He kūpono kūpono no ka hana ʻana i nā ʻāpana ʻaʻahu a me nā ʻāpana kūkulu wela kiʻekiʻe. ʻO ka hoʻomohala ʻana o ka reaction-sintered silicon carbide ceramics i hana nui i ka holomua ʻana i nā noi ʻoihana o kēia mea versatile.

ʻO ke ʻano hana kuʻunanā seramika carbide silika i hoʻopaʻa ʻiaʻo ka hoʻohana ʻana i ka pauka kalapona silika i hui pū ʻia me ka pauka kalapona liʻiliʻi. Loaʻa ka hui ʻana i kahi hopena siliconization kiʻekiʻe e hana i kahi mea seramika paʻa. Eia naʻe, ʻaʻole loaʻa nā hemahema o kēia hana kuʻuna. Hōʻike ʻia ke kaʻina hana sintering e ka lōʻihi o ka lōʻihi, ka wela kiʻekiʻe a me ka hoʻohana ʻana i ka ikehu kiʻekiʻe, e hopena i nā kumukūʻai kiʻekiʻe. I ka lilo ʻana o nā koi o ka ʻoihana no nā ʻano a me nā ʻano ʻano silicon carbide ceramic e paʻakikī, ʻike ʻia nā palena o nā ʻano kuʻuna.

I kēia mau makahiki i hala iho nei, ua lilo ka hoʻokomo ʻana i nā nanopowders silicon carbide i mea hoʻohiki e hoʻomaikaʻi ai i nā waiwai mechanical o ka silicon carbide ceramics. Hiki i ka hoʻohana ʻana i nā nanopowders ke hana i nā seramika me nā density sintered kiʻekiʻe a me nā ikaika flexural kiʻekiʻe. Eia nō naʻe, ʻoi aku ka kiʻekiʻe o ke kumu kūʻai o ka silicon carbide nanopowder, ʻoi aku ma mua o 10,000 yuan no ke tona, kahi mea e pale nui ai i ka hoʻohana nui ʻana a me ka hana nui. Pono kēia paʻakikī hoʻokele waiwai i ka ʻimi ʻana i nā mea maka a me nā ʻano hana e hana ai i nā ceramics silicon carbide i ʻoi aku ka maʻalahi a me ke kumu kūʻai.

Hoʻohui ʻia, hiki i ka hiki ke hana i nā ʻano paʻakikī a me nā ʻāpana nui e wehe i nā ala hou no nā noi silicon carbide ceramic. Hiki i nā ʻoihana e koi ana i nā hoʻolālā paʻakikī a me nā mea hana kiʻekiʻe ke pōmaikaʻi mai kēia ʻano hana hoʻomākaukau hou. Hiki i ka hoʻolālā hoʻolālā a me ka hana nui o nā seramika silicon carbide kiʻekiʻe ke alakaʻi i nā holomua nui i nā wahi e like me ka aerospace a me ka uila kahi mea koʻikoʻi ka hana.