ʻAʻole wale ʻo Sic ceramics i nā waiwai mechanical maikaʻi loa ma ka lumi wela, e like me ke kiʻekiʻe kulou ikaika, maikaʻi oxidation kū'ē, maikaʻi corrosion kū'ē, kiʻekiʻe lole pale a me haʻahaʻa friction coefficient, akā, i ka maikaʻi loa mechanical waiwai ma kiʻekiʻe wela (ikaika, creep kū'ē, etc.) ma waena o ike ceramic mea. ʻO ka sintering kaomi wela, ka sintering non-pressing, nā mea hoʻoheheʻe isostatic wela, ʻo ke ʻano nui o ka silicon carbide ka ikaika wela kiʻekiʻe, ʻo nā mea seramika maʻamau ma 1200 ~ 1400 degere Celsius e hoʻemi nui ʻia, a ʻo ka silicon carbide ma 1400 degere Celsius ke kulou ikaika e mālama mau ʻia ma kahi kiʻekiʻe o 50000000, no laila hiki ke kiʻekiʻe 100 MPa000. 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 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