Ma ke kahua o ka palekana o kēia au, me ka hoʻomaikaʻi mau ʻana o ka mana o nā mea kaua, ke lilo nei nā koi no nā mea pale pōkā i mea koʻikoʻi.Karbida silika, he mea maʻamau akā ikaika loa, ke puka mālie nei ma ke ʻano he punahele hou i ka ʻoihana pale pōkā. I kēia lā, e wehe mākou i ka pale pohihihi o ka pale pōkā silicon carbide.
1. Ke wehe nei i ke kumumanaʻo pale pōkā
ʻO ke kumu o ka pale kaua e pili ana i ka hoʻopau ʻana i ka ikehu o nā projectiles, e hoʻolohi ana iā lākou a hiki i ka nalowale ʻana o ko lākou pōʻino. Hilinaʻi nā mea metala kuʻuna i ka deformation plastic e omo i ka ikehu, ʻoiai nā mea keramika e hoʻokō i kēia pahuhopu ma o kahi kaʻina hana micro crushing kū hoʻokahi. Ke lawe nei i nā keramika pale bulletproof silicon carbide ma ke ʻano he laʻana, i ka wā e pā ai kahi projectile, lilo mua ka projectile i blunt koke ma luna o ka ʻili hopena, a ua kuʻi ʻia ka ʻili keramika e hana i kahi ʻāpana paʻakikī. Ua like kēia kaʻina hana me ka hāʻawi ʻana i ka projectile i kahi "hama" a i ka wā mua e omo ana i ka ikehu; A laila, hoʻomau ka projectile blunt i ka neʻe ʻana i mua, e hōʻino ana i ka ʻāpana ʻāpana a hana i kahi papa hoʻomau o nā ʻāpana keramika; ʻO ka hope, haki nā keramika ma lalo o ke kaumaha tensile, a hoʻomaka ka backplate e deform. Hoʻopili piha ʻia ka ikehu i koe e ka deformation o ka mea backplate.
2, No ke aha e hiki ai i ka silicon carbide ke pale i nā pōkā?
ʻO ka Silicon carbide kahi hui i haku nui ʻia me nā pilina covalent, a hiki i kāna mau pilina Si-C ke mālama i ka ikaika kiʻekiʻe i nā mahana kiʻekiʻe. Hāʻawi kēia ʻano kūikawā i nā keramika silicon carbide me nā waiwai maikaʻi loa. He paʻakikī kiʻekiʻe loa kona, ʻo ka lua wale nō i ka daimana, cubic boron nitride, a me ka boron carbide i waena o nā mea maʻamau. Ua like ia me ke koa e ʻaʻahu ana i kahi pale kaua paʻa, hiki ke pale ikaika i ka hopena projectile; I ka manawa like, he haʻahaʻa kona density a ʻoi aku ka māmā o ke kaumaha ke hana ʻia i nā lako pale pōkā. Inā no ke kaua pākahi a i ʻole i hoʻolako ʻia ma nā kaʻa a me nā mokulele, ʻaʻole ia e lilo i mea kaumaha hou, akā hiki ke hoʻomaikaʻi i ka neʻe ʻana o nā ʻāpana kaua. Eia kekahi, loaʻa i ka silicon carbide ka paʻa wela maikaʻi a me ke kūpaʻa i ka corrosion kemika, a hiki ke pāʻani paʻa i kahi hana pale pōkā i nā ʻano ʻano paʻakikī like ʻole.
3, Nā pono kūikawā o ka hopena sintered silicon carbide i nā ʻāpana i hoʻopilikino ʻia
I ke kaʻina hana hoʻomākaukau o nā keramika silicon carbide, kū i waho ka reaction sintered silicon carbide (RBSiC), kūpono loa no ka hana ʻāpana i hana ʻia me nā ʻāpana i hoʻopilikino ʻia, no nā kumu aʻe:
1. Ke kiʻekiʻe o ka nui a me ka ikaika kiʻekiʻe: Ma lalo o nā kūlana wela kiʻekiʻe, hana ka kalapona manuahi me ka silicon wai e hana i nā kristal silicon carbide hou. I ka manawa like, komo ka silicon manuahi a hoʻopiha i nā pores, e hoʻonui nui ana i ka nui o ka mea, kokoke i ka nui theoretical. ʻAʻole wale kēia e hāʻawi i ka mea me ka ikaika compressive a me ke kūlou maikaʻi loa, akā hāʻawi pū iā ia i ke kūpaʻa maikaʻi o ka ʻaʻahu, hiki ke kū i ke kaomi kiʻekiʻe a me nā kūlana hopena kiʻekiʻe, e hoʻokō ana i nā koi koʻikoʻi o nā ʻāpana i hana ʻia no ka ikaika a me ke kūpaʻa.
2. ʻAno microstructure hiki ke hoʻokele ʻia: Hiki i ke kaʻina hana sintering hopena ke hoʻomalu pololei i ka ulu ʻana o nā hua, e hana ana i nā ʻano microstructures liʻiliʻi a like. Hoʻonui hou kēia ʻano microstructure maikaʻi i nā waiwai mechanical o ka mea, e hiki ai iā ia ke noho paʻa a emi iki ka maʻalahi o ka haki a i ʻole ka hōʻino ʻana i ka wā e kū nei i nā pilikia paʻakikī like ʻole, e hāʻawi ana i kahi hōʻoia paʻa no ka hilinaʻi o nā ʻāpana i hana ʻia.
3. Pololei kiʻekiʻe o ke ana: I ka wā o ke kaʻina hana densification, he liʻiliʻi nā loli o ke ana o ka hopena sintered silicon carbide, he mea nui ia no nā ʻāpana i hana ʻia. Inā he plug pale pōkā koa hoʻokahi me nā ʻano paʻakikī a i ʻole kahi ʻāpana pale kaʻa kūikawā me nā koi nui koʻikoʻi, hiki ke hana pololei ʻia e hōʻoia i ka kūpono kūpono me nā lako.
4. Paʻa kemika maikaʻi: ʻAneʻane ʻaʻohe pores hāmama o ka silicon carbide sintered reaction, e paʻakikī ai i ka oxygen a me nā mea ʻino ke komo i loko o ka mea, no laila he ikaika loa ka pale ʻana i ka oxidation a me ka corrosion. ʻO ke ʻano kēia, hiki i nā huahana pale bulletproof silicon carbide i hana ʻia ke mālama i ka hana paʻa, hoʻolōʻihi i ke ola lawelawe, a hoʻemi i nā kumukūʻai mālama i nā wahi kūlohelohe a kemika paha no ka manawa lōʻihi.
4, kahua noi pale pōkā Silicon carbide
Me kāna hana maikaʻi loa, ua hoʻohana nui ʻia nā mea pale pale silicon carbide ma nā ʻano he nui:
1. ʻO nā lako ponoʻī: ka uhi ʻana o ka ʻaʻahu pale pōkā silicon carbide, ka mahiole pale pōkā, a me nā mea ʻē aʻe, e hāʻawi i nā koa me ka palekana māmā a kiʻekiʻe, e ʻae ana iā lākou e hakakā maʻalahi ma ke kahua kaua me ka palekana palekana hilinaʻi.
2. ʻO nā kaʻa kūikawā: e like me nā kaʻa kaua, nā kaʻa lawe kālā, nā kaʻa anti-terrorism a me nā kaʻa kaohi haunaele, a me nā mea ʻē aʻe, ua lako me nā pale kaua seramika silicon carbide ma nā ʻāpana koʻikoʻi, hiki ke pale pono i nā hoʻouka kaua like ʻole a pale i ka palekana o nā limahana a me nā mea koʻikoʻi i loko o ke kaʻa.
3. Aerospace: Hoʻohana ʻia nā mea pale pōkā Silicon carbide ma nā helikopter kaua a me nā mokulele ʻē aʻe e hōʻemi i ko lākou kaumaha ponoʻī, hoʻomaikaʻi i ka hana lele, a hoʻoikaika i ko lākou hiki ke pale aku i ke ahi ʻenemi, e hōʻoiaʻiʻo ana i ka palekana lele.
Me ka holomua mau o ka ʻenehana, e hoʻomau ka hoʻomohala a me ka hana hou ʻana o nā mea pale ʻino silicon carbide, e kūkulu ana i kahi laina pale ikaika no ka palekana. Inā makemake ʻoe i nā ʻāpana i hana ʻia o nā keramika silicon carbide sintered reaction, e ʻoluʻolu e hoʻokaʻaʻike mai iā mākou.
Ka manawa hoʻouna: Iune-06-2025