Kiʻekiʻe entropy alloy sputtering pahu hopu

ʻO ke kiʻekiʻe entropy alloy (HEA) kahi ʻano metala hou i hoʻomohala ʻia i nā makahiki i hala iho nei. ʻO kona haku mele he ʻelima a ʻoi aku paha nā mea metala. ʻO HEA kahi ʻāpana o nā ʻāpana metala nui-nui (MPEA), ʻo ia nā ʻāpana metala i loaʻa i ʻelua mau mea nui a ʻoi aku paha. E like me MPEA, kaulana ʻo HEA no kāna mau waiwai kino a me nā ʻano mechanical ma mua o nā ʻāpana kuʻuna.

ʻO ke ʻano o ka HEA ma ke ʻano he hoʻokahi kino-centered cubic structure or face-centered cubic structure, me ka ikaika kiʻekiʻe, ka paʻakikī, ke kūpaʻa maikaʻi loa, ka pale ʻana i ka corrosion, ka haʻahaʻa haʻahaʻa haʻahaʻa, ke kiʻekiʻe o ka wela oxidation kūpaʻa a me ka hoʻohaumia ʻana i ke kūpaʻa. Hiki iā ia ke hoʻomaikaʻi nui i ka paʻakikī, ka pale ʻana i ka corrosion, ke kūpaʻa wela a me ka paʻa paʻa o ka mea. No laila, hoʻohana nui ʻia i nā mea thermoelectric, nā mea magnetic palupalu a me nā mea pale radiation

ʻO ke kiʻekiʻe entropy alloy o FeCoNiAlSi ʻōnaehana he mea hoʻohiki palupalu palupalu me ka saturation magnetization kiʻekiʻe, resistivity a me ka plasticity maikaʻi loa; Loaʻa i ka FeCrNiAl kiʻekiʻe entropy alloy nā waiwai mechanical maikaʻi a me ka ikaika e hāʻawi ai, a he mau mea maikaʻi loa ia ma mua o nā mea binary maʻamau. He kumuhana wela o ka hana noiʻi ma ka home a ma waho. I kēia manawa, ʻo ke ʻano o ka hoʻomākaukau ʻana o ka entropy alloy kiʻekiʻe ke ʻano hoʻoheheʻe ʻana, e kūlike me ke ʻano o ka hoʻoheheʻe ʻana o kā mākou hui. Hiki iā mākou ke hana i ka HEA me nā ʻāpana like ʻole a me nā kikoʻī e like me nā koi o ka mea kūʻai aku