ʻAʻole wale ʻo Sic ceramics i loaʻa i nā waiwai mechanical maikaʻi loa i ka lumi wela, e like me ke kiʻekiʻe kulou ikaika, maikaʻi oxidation kūpaʻa, maikaʻi corrosion kū'ē, kiʻekiʻe lole pale a me ka haʻahaʻa friction coefficient, akā, i ka maikaʻi loa mechanical waiwai ma kiʻekiʻe wela (ikaika, creep resistance, etc.) ma waena o nā mea seramika i ʻike ʻia. ʻO ka sintering kaomi wela, ka sintering non-pressing, hot isostatic pressing sintering material, ʻo ka ʻano nui loa o ka silicon carbide ka ikaika wela kiʻekiʻe, nā mea seramika maʻamau ma 1200 ~ 1400 degere Celsius e hoʻemi nui ʻia, a me ka silicon carbide ma 1400 degere Celsius ka ikaika kulou. mālama mau ʻia ma kahi kiʻekiʻe o 500 ~ 600MPa, no laila hiki i ka mahana hana ke hiki i 1600 degere Celsius; ʻO ke ʻano pāpaʻi Silicon carbide paʻakikī a palupalu, liʻiliʻi ke koena hoʻonui, ke anuanu a wela, ʻaʻole maʻalahi i ka deformation. ʻO ka carbide silikoni ka mea liʻiliʻi loa, no laila ʻoi aku ka māmā o nā ʻāpana seramika i hana ʻia me ka silicon carbide.
ʻO ka alumina ceramic kahi ʻano alumina (Al2O3) ma ke ʻano he kino nui o ka mea seramika, i hoʻohana ʻia i nā kiʻiʻoniʻoni hoʻohui ʻia. Loaʻa i nā seramika alumina ka conductivity maikaʻi, ka ikaika mechanical a me ke kūpaʻa wela kiʻekiʻe. Pono e hoʻomaopopo ʻia e koi ʻia ka holoi ultrasonic. He 266 ka nui o kona pale ʻana i ke kila manganese a he 171.5 ka nui o ka hao hao chromium kiʻekiʻe. ʻO ka alumina ceramic kahi ʻano o nā mea insulating kiʻekiʻe, i hoʻohana pinepine ʻia e hana i ka ceramic insulating sheet, insulating apo a me nā ʻāpana ʻē aʻe. Hiki i nā seramika alumina ke kū i ka wela kiʻekiʻe a hiki i 1750 ℃ (ʻoi aku ka nui o ka alumina ma mua o 99%).
Ka manawa hoʻouna: Feb-14-2023