Mai ke kenekulia 21, ua ulu wikiwiki nā seramika pale pōkā me nā ʻano ʻē aʻe, e like me Alumina, Silicon Carbide, Boron carbide, Silicon Nitride, Titanium Boride, etc. (B4C) ka mea i hoʻohana nui ʻia.
Loaʻa i nā seramika alumina ka mānoanoa kiʻekiʻe loa, akā haʻahaʻa haʻahaʻa, ka paepae hana haʻahaʻa, a me ke kumu kūʻai haʻahaʻa.
He haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa a me ka paʻakikī ʻo Silicon carbide ceramics a he kumu kūʻai nā seramics structural, no laila ʻo ia ka mea i hoʻohana nui ʻia i nā ceramics bulletproof ma Kina.
ʻO Boron carbide ceramics i kēia mau ʻano seramika i ka haʻahaʻa haʻahaʻa, ʻo ka paʻakikī kiʻekiʻe loa, akā i ka manawa like he kiʻekiʻe loa kona koi ʻana, pono ke kiʻekiʻe kiʻekiʻe a me ka sintering kiʻekiʻe, a no laila ʻo ke kumukūʻai ke kiʻekiʻe loa ma waena o kēia mau ʻekolu. seramika.
I ka hoʻohālikelike ʻana i kēia mau mea ʻekolu mea maʻamau ballistic ceramic, ʻo ke kumu kūʻai ʻo Alumina ballistic ceramic ka haʻahaʻa akā ʻoi aku ka haʻahaʻa o ka hana ballistic i ka silicon carbide a me ka boron carbide, no laila ʻo ka hāʻawi ʻana o ka ballistic ceramic i kēia manawa ʻo ia ka nui o ka silicon carbide a me ka boron carbide bulletproof.
He ikaika loa ka hoʻopaʻa ʻana o ka silicone carbide covalent a loaʻa nō ka ikaika kiʻekiʻe o ka hoʻopaʻa ʻana i nā wela kiʻekiʻe. Hāʻawi kēia hiʻohiʻona i ka silicon carbide ceramics i ka ikaika maikaʻi, ka paʻakikī kiʻekiʻe, ke kūpaʻa aahu, ka pale ʻana i ka corrosion, kiʻekiʻe thermal conductivity, maikaʻi thermal shock resistance a me nā waiwai ʻē aʻe; i ka manawa like, ʻoi aku ke kumu kūʻai ʻana o nā seramika silicon carbide a ʻoi aku ka maikaʻi, a ʻo ia kekahi o nā mea pale pale pale hana kiʻekiʻe. Loaʻa ka nui o ka hoʻomohala ʻana o ka SiC ceramics i ke ʻano o ka pale pale kaua, a ʻo nā noi ke ʻano like ʻole i nā wahi e like me nā mea lawe kanaka a me nā kaʻa kūikawā. Ma ke ʻano he mea pale pale, e noʻonoʻo ana i nā kumu e like me ke kumukūʻai a me nā noi kūikawā, ua hoʻopaʻa pinepine ʻia nā lālani liʻiliʻi o nā panela seramika me ke kākoʻo composite e hana i nā papa i hoʻopaʻa ʻia i ka ceramics e lanakila ai i ka hemahema o nā seramika ma muli o ke koʻikoʻi tensile a e hōʻoia i hoʻokahi ʻāpana. ua ʻoki ʻia me ka ʻole o ka hōʻino ʻana i ka pale kaua holoʻokoʻa i ka wā e komo ai ka projectile.
ʻIke ʻia ʻo Boron carbide ʻo ke kolu o ka mea paʻakikī ma hope o ke daimana a me ka cubic boron nitride, me ka paʻakikī a hiki i 3000 kg/mm2; haʻahaʻa haʻahaʻa, wale 2.52 g/cm3,; modulus kiʻekiʻe o ka elasticity, 450 GPa; He haʻahaʻa kona coefficient o ka hoʻonui wela, a he kiʻekiʻe ka conductivity thermal. Eia kekahi, loaʻa i ka boron carbide ke kūpaʻa kemika maikaʻi, ka ʻakika a me ka pale ʻana i ka corrosion alkali; a me ka hapa nui o ka metala i hooheheeia aole pulu a pili ole. Loaʻa i ka Boron carbide kahi mana neutron absorption maikaʻi loa, ʻaʻole i loaʻa i nā mea seramika ʻē aʻe. ʻO ka mānoanoa o B4C ka haʻahaʻa loa o nā seramika mea kaua i hoʻohana mau ʻia, a ʻo kona modulus kiʻekiʻe o ka elasticity i koho maikaʻi ʻia no nā mea kaua a me nā lako kahua ākea. ʻO nā pilikia nui me ka B4C ʻo kona kumukūʻai kiʻekiʻe a me ka brittleness, e kaupalena ana i kāna noi ākea e like me ka pale pale.
