Ma nā ʻano he nui e like me ka hana ʻoihana a me ka hoʻomohala ʻana i ka ikehu, ʻo nā wahi wela kiʻekiʻe ka hoʻāʻo hope loa o ka hana o nā mea. Ma waena o nā mea he nui e kū ana i ka wela kiʻekiʻe,kalaka siliconua lilo i "alakaʻi" i ka hoʻoponopono ʻana i nā pilikia wela kiʻekiʻe loa ma muli o kāna hana kūpaʻa wela maikaʻi loa, a ua hoʻohana nui ʻia i nā ʻoihana koʻikoʻi e like me ka aerospace, ka ikehu hou, ka metallurgy, a pēlā aku.
He aha ke ʻano o ka silicon carbide? ʻO ke kumu, he hui ia i haku ʻia me nā mea kalapona a me silicon, aia ma ke ʻano o kahi mineral kakaikahi i kapa ʻia ʻo "moissanite" ma ke ʻano a loaʻa pinepine ʻia ma o ka synthesis artificial i ka ʻoihana. ʻO ka pōmaikaʻi koʻikoʻi o kēia mea ʻo ia kona kūpaʻa wela kiʻekiʻe loa. ʻOiai ma nā wahi wela kiʻekiʻe o nā tausani degere Celsius, hiki iā ia ke mālama i ke ʻano kino paʻa a me nā waiwai kemika, a ʻaʻole e palupalu a hoʻololi paha e like me nā metala maʻamau, ʻaʻole hoʻi e pane maʻalahi me nā mea ʻē aʻe.
No ke aha he kūpaʻa maikaʻi loa ka silicon carbide i ka mahana kiʻekiʻe? ʻO ke kumu nui, aia i loko o kona ʻano kristal kū hoʻokahi. Hoʻopaʻa paʻa ʻia nā ʻātoma o ka silicon carbide e nā pilina covalent ikaika loa, e hana ana i kahi ʻano pūnaewele ʻekolu-dimensional paʻa, e like me ke kūkulu ʻana i kahi 'hale paʻa microscopic'. ʻO kēia ʻano hana e paʻakikī ai ka hōʻino ʻia i nā mahana kiʻekiʻe, ʻaʻole wale nō e hiki ke kū i nā loli mahana koʻikoʻi, akā kūpaʻa hoʻi i ka oxidation a me ka corrosion i nā mahana kiʻekiʻe, e hāʻawi ana i nā hōʻoia hilinaʻi no ka hana paʻa o nā lako ma nā wahi koʻikoʻi.
I nā noi hana, ʻo ke kūpaʻa wela kiʻekiʻe o ka silicon carbide he kuleana nui ia. Ma ke kahua o ka ikehu hou, hoʻohana ʻia ia e hana i nā mea semiconductor kūpaʻa wela kiʻekiʻe, e kōkua ana i ka hoʻolaha ʻana i ka hana pono o nā ʻoihana e like me nā kaʻa ikehu hou a me ka hanauna mana photovoltaic; Ma ke kahua aerospace, he mea nui ia no ka hana ʻana i nā ʻāpana mīkini a me nā mea pale wela o ka mokulele, e kōkua ana i nā lako e kū i nā mahana kiʻekiʻe loa i hana ʻia i ka wā lele wikiwiki; I ka ʻoihana metallurgical, hiki i nā mea refractory i hana ʻia me ka silicon carbide ke kū i ka erosion wela kiʻekiʻe i loko o nā umu a hoʻolōʻihi i ke ola lawelawe o nā lako.
Me ka holomua mau o ka ʻenehana, ke hoʻonui mau nei nā hiʻohiʻona noi o ka silicon carbide. ʻO kēia mea maʻamau, nona kahi "gene pale wela" ikaika, ke hāʻawi nei i ke kākoʻo no nā ʻoihana like ʻole e uhaʻi i ka bottleneck o ka ʻenehana wela kiʻekiʻe me kona mau pono kūikawā, a ua lilo ia i mea ikaika nui i ka hoʻolaha ʻana i ka hoʻonui ʻana i ka ʻoihana a me ka hana hou ʻenehana. I ka wā e hiki mai ana, me ka hoʻomaikaʻi mau ʻana i nā koi hana mea, e ʻālohilohi maoli ka silicon carbide ma nā kahua kiʻekiʻe a kākau i kahi mokuna hou i nā mea pale wela kiʻekiʻe.
Ka manawa hoʻouna: Nov-04-2025