ʻO ke kumu kūʻai kiʻekiʻe Fe-b alloy particle FeB 95:5wt High-Entropy Alloys(HEA) Manufacturing

He 10.81 ko Boron kaumaha. ʻO ka hoʻolālā uila he 1s2s2p. ʻO 2.31g/cm(20 ° C) ka mānoanoa o ka boron crystalline, ʻoiai ʻo 2.30g/cm(20 ° C) ka nui o ka boron amorphous. Ka helu hehee 2079 ℃, kahi e hoʻolapalapa ai 3660 ℃. Hōʻike ʻia ke kiʻikuhi pae kaulike o ka ʻōnaehana binary boron-hao ma ke Kiʻi 1. Ma ka ʻōnaehana boroferric, aia kahi helu eutectic ma kahi o 3.8% boron content, a ʻo ka mahana eutectic he 1149 ℃. Hoʻokumu ka hao a me ka boron i ʻelua mau pūhui waena, ʻo Fe2B a me FeB, ʻo ia hoʻi ka paʻa loa i nā wela kiʻekiʻe. Loaʻa i ka FeB ʻelua ʻano aniani: ka wela kiʻekiʻe a me ka wela haʻahaʻa. ʻO ka hana ʻoihana o ka hao boride (10% ~ 20% B) hoʻoheheʻe ʻia ka pae wela o 1400 ~ 1550 ℃, ka nui o 5.8 ~ 6.5g/cm

Hiki i ka nui o ka boron (0.001%) ke pālua i ka paʻakikī o ke kila. ʻO ka hoʻohui ʻana o kahi 0.003%B i ke kila kila hiki ke hoʻomaikaʻi i kāna kaʻina hana. Loaʻa iā Boron nā waiwai o ka hoʻopaʻa ʻana i nā neutrons, hiki iā ia ke keʻakeʻa a hoʻopau paha i ka hopena kaulahao o nā hopena nuklea uranium-graphite. No laila, hoʻohana ʻia ke kila me ka maʻiʻo boron kiʻekiʻe (>1%B) i ka ʻoihana ikehu atomika. Hiki i ka Boron i ka hao hao ke hoʻopili i ka graphitization, pēlā e hoʻonui ai i ka hohonu o ka waha. Ke ʻoi aku ka nui o ka boron i hoʻohui ʻia ma mua o 0.01%, ʻike ʻia ka hopena o ka hoʻopaʻa ʻana i ka carbide, no laila e hoʻomaikaʻi ʻia ka pale ʻana o ka hao. ʻO ka hao hao, boron content 0.02% ~ 0.1%, hiki ke hoʻomaikaʻi i ka paʻakikī o ka ʻili a hoʻomaikaʻi i ka solidification keʻokeʻo. Hoʻohui ʻia ʻo Borda 0.001% ~ 0.005% i ka hao hoʻoheheʻe malleable e kūpono i ka hana ʻana i ka inika spheroidal. I ka manawa like, hiki iā ia ke hoʻonui i nā ʻāpana o ka graphite a hoʻomaikaʻi i kāna hoʻolaha. He kūpono kēia hopena i ka hoʻoponopono annealing. [2]

ʻO ke kumu hao, ke kumu cobalt a me ka pauka nickel base i hoʻohana ʻia no ka pīpī ʻana (weld) i loko o 0.5% ~ 4.0% boron. Hiki ke pani i ke kila silikona amorphous i loaʻa i ka boron, e like me Feg2SisB3, e hana i nā mea hoʻololi hoʻōla ikehu a me nā mea hana ʻē aʻe me ka hao haʻahaʻa a me ka leo liʻiliʻi. Ndfeb mau magnets e like me Nd2Fe14B a me Nd15Fe77B8 loaʻa nā mea maikaʻi o ka remanence kiʻekiʻe, kiʻekiʻe coercivity a me ka huahana ikehu magnetic kiʻekiʻe, ʻo ia nā mea kūpono no ka hana ʻana i nā ʻāpana magnet mau loa.