ʻAʻole magnetic ka alumini

Aluminum, hōʻailona kemika Al, helu atomika 13, he metala kala-keokeo mama. ʻO ia ka metala nui loa ma ka ʻōpala o ka honua. Ma ke ano o ka magnetism, Hoʻokaʻawale ʻia ka alumini ma ke ʻano he mea non-magnetic a paramagnetic paha. ʻO ia ke kumu ʻaʻole ia e hōʻike i ka magnetism ikaika e like me nā mea ferromagnetic.

ʻO ke kumu o ka Magnetism

Ke kamaʻilio mākou e pili ana i ka magnetism, manaʻo maʻamau mākou i nā mea e like me ka hao, kobalta, a me ka nickel ma muli o ko lākou huki ikaika ʻana i nā magnet. I ka ʻoiaʻiʻo, aia ʻekolu ʻano nui o ke ʻano hoʻokalakupua o nā mea:

1. Ferromagnetic: ʻO nā mea e like me ka hao, ʻO ka cobalt a me ka nickel ka manaʻo ikaika i nā magnet a hiki ke lilo i mau magnet iā lākou iho.
2. Paramagnetic: ʻAʻole hoʻopaʻa ʻia ko lākou magnetism i ka wā e wehe ʻia ai ke kahua magnetic waho.
3. Diamagnetism: ʻO nā mea e like me ke keleawe a me ka bismuth e hoʻopuka maoli i kahi pākuʻi kuʻekuʻe i mua o kahi māla magnetic ʻē aʻe, aka, nawaliwali loa ka ikaika.

Magnetism o Aluminum

Ma ke ano o ka magnetism, Hoʻokaʻawale ʻia ka alumini ma ke ʻano he mea non-magnetic a paramagnetic paha. ʻO ia ke kumu ʻaʻole ia e hōʻike i ka magnetism ikaika e like me nā mea ferromagnetic.

Loaʻa ka paramagnetism o Aluminum mai ka hoʻonohonoho ʻana o kāna mau electrons. Loaʻa i ka alumini kekahi electron i hoʻopaʻa ʻole ʻia ma kona ʻili waho, a e like me ka quantum physics, Hāʻawi nā electrons i hui ʻole ʻia i ka paramagnetism. Eia naʻe, no ka mea, nāwaliwali loa kēia hopena, ʻO ka magnetism o alumini he mea paʻakikī ke ʻike i ke ola o kēlā me kēia lā.

Ke noi a me ke koʻikoʻi

He mea koʻikoʻi ka hoʻomaopopo ʻana i nā waiwai non-magnetic o ka alumini no nā ʻano noi like ʻole:

• Mea hoʻokele uila: ʻO ka pilina nāwaliwali o ka alumini me nā māla magnetic e lilo ia i mea kūpono no nā laina hoʻoili mana no ka mea ʻaʻole ia e keakea i ke kahe o ka uila..
• Mea kuke: Kaulana ʻia nā mea kuke alumini no ka mea ʻaʻole ia e pane me nā magnets a i ʻole induction magnetic, he mea nui ia no nā mea kuke kuke.
• ʻOihana Aerospace: Loaʻa nā waiwai non-magnetic o Aluminum i ka ʻoihana aerospace, kahi i makemake ʻia ai nā mea e hoʻopilikia ʻole i nā ʻōnaehana hoʻokele mokulele.
• Na Lapaau Lapaau: Aluminum is commonly used in medical devices that require compatibility with magnetic resonance imaging (MRI) nā mīkini.

E ho'āʻo i ka magnetism o ka alumini ma ka home

Makemake ʻoe e hoʻāʻo i ka magnetism o ka alumini iā ​​ʻoe iho? Eia kahi hoʻokolohua maʻalahi hiki iā ʻoe ke hoʻāʻo ma ka home:

1. E hōʻiliʻili i nā mea: Pono ʻoe i kahi magnet neodymium ikaika a me kahi ʻāpana alumini, e like me ke kini alumini.
2. ʻano hana: E hoʻopaʻa i ka magnet kokoke i ka alumini. E ʻike ʻoe ʻaʻole pili ka alumini i ka magnet.
3. wili: E hoʻoneʻe koke i ka magnet i ka alumini, alaila, huki mai. Hiki iā ʻoe ke ʻike i kahi paʻi iki a huki paha i ka alumini. Hoʻokumu ʻia kēia hopena e nā au i hoʻokomo ʻia i kapa ʻia ʻo eddy currents, ka mea e hana ai i kahi māhina manawa pōkole a puni ka alumini.