ʻAʻole wale nā kīnika Sic i nā waiwai mechanical maikaʻi loa i ka mahana o ka lumi, e like me ka ikaika kūlou kiʻekiʻe, ke kūpaʻa oxidation maikaʻi loa, ke kūpaʻa corrosion maikaʻi, ke kūpaʻa ʻaʻahu kiʻekiʻe a me ka coefficient friction haʻahaʻa, akā loaʻa iā ia nā waiwai mechanical maikaʻi loa i ka mahana kiʻekiʻe (ikaika, kū'ē kolo, a pēlā aku) i waena o nā mea keramika i ʻike ʻia. ʻO ka sintering kaomi wela, ka sintering non-pressing, nā mea sintering kaomi isostatic wela, ʻo ke ʻano nui o ka silicon carbide ka ikaika wela kiʻekiʻe, e hoʻemi nui ʻia ka ikaika o ka mea keramika maʻamau ma 1200 ~ 1400 degere Celsius, a mālama ʻia ka ikaika kūlou silicon carbide ma 1400 degere Celsius ma kahi kiʻekiʻe o 500 ~ 600MPa, no laila hiki i ka mahana hana ke hiki i 1600 degere Celsius; He paʻakikī a palupalu ke ʻano o ka papa silikona carbide, he liʻiliʻi ka coefficient hoʻonui, ke kūpaʻa anu a wela, ʻaʻole maʻalahi ke deform. ʻO Silicon carbide ka liʻiliʻi loa o ka mānoanoa, no laila ʻo nā ʻāpana keramika i hana ʻia me ka silicon carbide ka māmā loa.
ʻO ka alumina ceramic kahi ʻano alumina (Al2O3) ma ke ʻano he kino nui o ka mea keramika, i hoʻohana ʻia i nā kaapuni hoʻohui ʻia o ka ʻili mānoanoa. Loaʻa i nā keramika alumina ka conductivity maikaʻi, ka ikaika mechanical a me ke kūpaʻa wela kiʻekiʻe. Pono e hoʻomaopopo ʻia he pono ka holoi ultrasonic. ʻO kona kūpaʻa ʻana i ke kapa he 266 mau manawa o ke kila manganese a me 171.5 mau manawa o ka hao hao chromium kiʻekiʻe. ʻO ka alumina ceramic kahi ʻano mea insulating kiʻekiʻe, kahi i hoʻohana pinepine ʻia e hana i ka pepa insulating ceramic, ke apo insulating a me nā ʻāpana ʻē aʻe. Hiki i nā keramika alumina ke kū i ka mahana kiʻekiʻe a hiki i ka 1750 ℃ (ʻoi aku ka nui o ka alumina ma mua o 99%).
Ka manawa hoʻouna: Pepeluali-14-2023