Paʻi-free sintering o silicon carbide: he au hou o ke kiʻekiʻe wela mea hoʻomākaukau

ʻO nā waiwai waiwai ma lalo o ka friction, ʻaʻahu a me nā wahi wela kiʻekiʻe ke koi nui nei, a ʻo ka puka ʻana mai o nā lako silicon carbide paʻi paʻi ʻole e hāʻawi iā mākou i kahi hopena hou. ʻO ka carbide silicon pressureless he mea seramika i hana ʻia e ka sintering silicon carbide pauka ma lalo o ka haʻahaʻa haʻahaʻa a i ʻole nā ​​kūlana kaomi.

Pono nā ʻano kuʻuna sintering maʻamau i ke kaomi kiʻekiʻe, kahi e hoʻonui ai i ka paʻakikī a me ke kumukūʻai o ke kaʻina hana hoʻomākaukau. ʻO ka puka ʻana mai o ke ʻano carbide silicon carbide non-pressure ua hoʻololi i kēia kūlana. Ma lalo o ke ʻano o ke kaomi ʻole, hoʻohui ʻia ka pauka silicon carbide i ka wela kiʻekiʻe ma o ka diffusion thermal a me ka hopena o ka ʻili e hana i kahi mea seramika paʻa.

Sintered silicon carbide me ke kaomi ʻole he nui nā pono. ʻO ka mea mua, ʻo ka mea i hoʻomākaukau ʻia e kēia ʻano he kiʻekiʻe kiʻekiʻe a me ka microstructure like ʻole, e hoʻomaikaʻi ai i nā waiwai mechanical a me ke kūpaʻa ʻana o ka mea. ʻO ka lua, ʻaʻole koi ʻia nā mea hana ʻē aʻe i ke kaʻina sintering pressless, e hoʻomaʻamaʻa i ke kaʻina hana hoʻomākaukau a hoʻemi i ke kumukūʻai. Eia kekahi, hiki ke hoʻomaopopo i ke ʻano o ka sintering non-pressure i ka hoʻomākaukau ʻana i ka nui nui a me ke ʻano paʻakikī o nā huahana silicon carbide, a hoʻonui i ke kahua noi.

ʻO nā mea carbide silicon sintered me ka ʻole o ke kaomi ʻana i kahi ākea ākea i nā noi wela kiʻekiʻe. Hiki iā lākou ke hoʻohana i nā kapuahi wela kiʻekiʻe, nā ʻike wela kiʻekiʻe, nā lako mana a me ka aerospace. Ma muli o kona kūpaʻa kiʻekiʻe kiʻekiʻe o ka wela, ke kūpaʻa a me ka conductivity thermal, hiki i nā mea hana silicon carbide paʻi ʻole ke paʻi i nā mahana wela a me nā kūlana hana paʻakikī.

Eia nō naʻe, aia nō kekahi mau pilikia i ka hoʻomākaukau ʻana o ka carbide silicon sintering non-pressure, e like me ka hoʻomalu ʻana i ka mahana a me ka manawa, ka hoʻopuehu ʻana o ka pauka a pēlā aku. Me ka hoʻomaikaʻi hou ʻana o ka ʻenehana a me ka noiʻi hohonu, hiki iā mākou ke manaʻo i ka hoʻohana ākea a me ka hoʻomaikaʻi hou ʻana i ka hana o ke kaʻina hana silicon carbide non-pressure sintering ma ke kahua o nā mea wela kiʻekiʻe.

I ka hōʻuluʻuluʻana, weheʻia ka carbide silicon non-pressure i kahi manawa hou no ka hoʻomākaukauʻana i nā mea wela kiʻekiʻe ma o ka hoʻomaʻamaʻaʻana i ke kaʻina hana hoʻomākaukau, hoʻomaikaʻi i nā waiwai waiwai a hoʻonui i ka laulā noi. Me ka hoʻomohala ʻana i ka ʻenehana, e hōʻike ana nā mea hana silicon carbide non-pressure i ka mana nui i nā noi wela kiʻekiʻe a lawe mai i nā noi hou i nā ʻoihana like ʻole.