Metala

ʻAno o nā Metala i hoʻohana ʻia i nā mea hoʻonani maikaʻi ʻOi aku ka mea hoʻonani maikaʻi ma mua o nā hoʻolālā maka e hoʻohihi i ka maka a i ʻole ka ʻālohilohi o nā pōhaku makamae. Ma hope o ke apo daimana, kahi lei me kahi lei nani, a i ʻole ke kūpeʻe lima hanohano e waiho ana i kahi mea koʻikoʻi e hoʻoholo ai i kona ʻano a me kona waiwai: ke metala makamae i hoʻohana ʻia. Hana ka metala ma ke ʻano he "ʻōnaehana" mua o nā mea hoʻonani - e hoʻopilikia ana i kona kūpaʻa, ke kala, ka ʻoluʻolu… heluhelu hou

ʻO ka ʻenehana holomua i ka hana ʻana i nā metala keleawe no nā kaula uila ʻO ke keleawe kekahi o nā metala koʻikoʻi loa i ka ʻoihana uila. ʻO ka hapa nui o nā ʻōnaehana hoʻolaha uila—mai nā pūnaewele hale a me nā hale kiʻekiʻe a hiki i nā kikowaena ʻikepili a me nā kaʻa uila—hilinaʻi lākou i nā kaula keleawe ma muli o ko lākou conductivity kiʻekiʻe, malleability, a me ke kūpaʻa ʻana i ka pala. Eia nō naʻe, no ka hana ʻana i nā kaula uila kiʻekiʻe… heluhelu hou

Kaʻina Hana Hana Metala Titanium no nā Mea Lapaʻau ʻO Titanium kekahi o nā metala i kamaʻilio nui ʻia i ka mālama ola kino hou, ʻoiai no ka hana ʻana i nā mea lapaʻau a me nā mea hoʻokomo. Ua maopopo ke kumu: loaʻa i ka titanium kahi hui pū ʻana o nā waiwai i kakaikahi ma waena o nā metala ʻē aʻe—he māmā, ikaika, kūpaʻa i ka pala, a he biocompatible loa (ʻoi aku ka "aloha" i nā ʻiʻo kino). No laila, hoʻohana nui ʻia ka titanium i… heluhelu hou

ʻO ka hoʻohana ʻana o ka Indium Metal i nā noi uila a me ka optical He metala palupalu ʻo Indium, malleable, hina-kala me kahi kiko heheʻe haʻahaʻa (ma kahi o 156,6°C). ʻOiai ʻaʻole i ʻike nui ʻia e like me ke keleawe a i ʻole ka alumini, he kuleana koʻikoʻi ko ka indium i ka ʻenehana hou—ʻoi aku hoʻi i nā mea uila a me nā optics. Loaʻa ka waiwai koʻikoʻi o Indium mai kona hui pū ʻana o nā waiwai: conductivity uila maikaʻi, … heluhelu hou

Pehea e hana ai i nā Alloys Aluminium a me ke keleawe Hoʻolauna ʻO kahi alloy kahi mea i hana ʻia ma ka hoʻohui ʻana i ʻelua a ʻoi aku paha mau mea metala (a i ʻole nā ​​​​metala me nā mea ʻē aʻe) e loaʻa ai nā waiwai i ʻoi aku ka maikaʻi ma mua o nā metala maʻemaʻe. ʻO kahi alloy i hoʻohana nui ʻia i ka ʻoihana he alloy o ka alumini (Al) a me ke keleawe (Cu). Ua kaulana kēia alloy no kona hui pū ʻana o... heluhelu hou

Nā Metala Pale Wela no nā ʻEnekini Jet Hana nā ʻenekini jet i nā wahi ʻino loa. Hiki i nā mahana kinoea hoʻopau i loko o ka ʻāpana turbine ke ʻoi aku ma mua o 1.000°C, ʻoiai pono e paʻa nā ʻāpana ma lalo o nā ukana wili kiʻekiʻe, nā kaomi kiʻekiʻe, a me ka hōʻike ʻana i ka oxidation a me ka corrosion mai nā kinoea wela. No laila, ʻaʻole maʻalahi ke koho ʻana i kahi metala no kahi ʻenekini jet. heluhelu hou

ʻO nā ʻenehana hou loa i ka hana ʻana i ka metala Platinum ʻO Platinum (Pt) kekahi o nā metala makamae koʻikoʻi loa i ka ʻoihana hou. ʻAʻole wale kona waiwai mai kona kakaikahi, akā ʻo ke kumu nui mai kona mau waiwai kiʻekiʻe: ke kūpaʻa kiʻekiʻe i ka palaho, ke kūpaʻa wela kiʻekiʻe, a me ka hana catalytic kiʻekiʻe. ʻO kēia hui pū ʻana e hana ai i ka platinum i mea nui no nā catalysts i ka ʻoihana kaʻa, ka ʻoihana kemika, a me nā lako... heluhelu hou

Ka Hana ʻana i ka Metala Manganese no ka Hana ʻana i ke Kila He mea hoʻohui koʻikoʻi ka Manganese (Mn) i ka ʻoihana kila. ʻOiai ʻaʻole kiʻekiʻe ka nui o ka manganese i loko o ke kila e like me nā mea mua e like me ka hao (Fe) a me ke kalapona (C), he mea koʻikoʻi kona kuleana: e hoʻonui ana i ka ikaika, ka paʻakikī, a me ke kūpaʻa ʻana i ka ʻaʻahu, a me ke kōkua ʻana i ke kaʻina hana hoʻomaʻemaʻe i ka wā o ka hoʻoheheʻe ʻana. Me ka ʻole o ka manganese, ka hana kila… heluhelu hou

ʻO ka hoʻohana ʻana o ka metala Osmium i ka ʻoihana uila ʻO Osmium kekahi o nā metala kakaikahi loa i ka ʻili o ka Honua a no ka hui platinum group metals (PGM), me platinum, iridium, ruthenium, rhodium, a me palladium. Loaʻa i kēia mea ka helu atomika 76 a ua ʻike ʻia no kona mau waiwai kino ʻokoʻa loa: ka nui kiʻekiʻe loa, ke kiko heheʻe kiʻekiʻe, a me ke kūpaʻa maikaʻi i... heluhelu hou

Pehea e hana ai i nā Cobalt Alloys no nā Turbochargers Ua ʻike nui ʻia nā cobalt-based alloys he mau mea hana kiʻekiʻe no nā ʻāpana turbocharger—ʻo nā turbochargers kaʻa a me nā turbines kinoea—ma muli o ko lākou kūpaʻa ʻana i nā mahana kiʻekiʻe, ka oxidation, ka pala wela, a me ke komo ʻana. I nā wahi turbocharger, pono nā mea e mālama i ka ikaika i nā mahana kiʻekiʻe, e kū i nā pōʻaiapuni wela a me ke anuanu, a… heluhelu hou