Aluminum diboride AlB2 pauka
1, Hoʻohana ʻia ma ke ʻano he semiconductor mea no ke kiʻekiʻe wela rectifier, doped mea, ka tube mea, cathode mea a me kiʻekiʻe-mahana nukelea reactor neutron absorbing mea.
2, Loaʻa i kēia hui kūikawā ke kūpaʻa maikaʻi, ka wela wela, ka pale ʻana i ka oxidation, ke kū'ē a me ka mahana i kahi pilina laina. Hiki ke hoʻohana ʻia no ka seramika metala, ka uhi ʻana i ka lole, ke kūpaʻa wela kiʻekiʻe, ka lining crucible, ka hoʻopiha a me ka anti-corrosion. mea hoʻopā kemika.Hiki ke hoʻohana ʻia e like me nā mea anorganic super-hard.
3, hiki ke pani i ka pepa kila silika, ʻoi aku ma mua o 50% mālama ola.
4, loaʻa kahi noi i ka ʻoihana nuklea, nā nozzles rocket, nā bearings wela kiʻekiʻe, ka pale pale thermoelectric, nā ʻāpana kaʻa a me nā mea hana ʻē aʻe.
ʻO ka alumini borate (AlB2) kahi ʻano hui binary i hana ʻia e ka alumini a me ka boron.
He paʻa ʻulaʻula hina ma lalo o ka mahana maʻamau a me ke kaomi.He kūpaʻa i ka dilute anu
ʻakika, a decomposed i loko o ka waika hydrochloric wela a me ka waikawa nitric.ʻO ia kekahi o nā mea ʻelua
nā hui o ka alumini a me ka boron.ʻO ka mea ʻē aʻe he alb12, i kapa ʻia ʻo alumini
borate.ʻO Alb12 kahi aniani monoclinic ʻeleʻele me ka umekaumaha kikoʻī o 2.55 (18 ℃).
ʻAʻole hiki ke hoʻoheheʻe ʻia i ka wai, ka waikawa a me ka alkali.Hoʻoheheʻe ia i loko o ka waika nitric wela a loaʻa
ma ka hoʻoheheʻe ʻana i ka boron trioxide, sulfur a me ka alumini.
Ma ka hoʻolālā, hana nā ʻātoma B i nā ʻāpana graphite me nā ʻātoma Al ma waena o lākou, ʻo ia hoʻi
like me ke ʻano o ka magnesium diboride.Hōʻike ke aniani hoʻokahi o AlB2 metala
conductivity ma ke axis e like me ka hexagonal plane o ke pani.Borona
hoʻoikaika ʻia nā mea hoʻohui alumini e ka boron fiber a i ʻole boron fiber me ka uhi pale.
ʻO ka nui o ka nui o ka boron fiber ma kahi o 45% ~ 55%.Kaumaha kiko haʻahaʻa, kiʻekiʻe
ʻano mekini.ʻO ka ikaika tensile longitudinal a me ka modulus elastic o unidirectional
i hoʻoikaika ʻia ka boron alumini composite ma kahi o 1.2 ~ 1.7gpa a me 200 ~ 240gpa, kēlā me kēia.
ʻO ka modulus elastic kikoʻī longitudinal a me ka ikaika kikoʻī e pili ana i 3 ~ 5 mau manawa a
3 ~ 4 mau manawa o ka titanium alloy duralumin a me ke kila kila, kēlā me kēia.Ua hoʻohana ʻia ma
ʻO nā ʻili uila turbojet engine, nā kaʻa aerospace a me nā hale ukali.ʻO ke kaomi wela
Hoʻohana ʻia ke ʻano hoʻopaʻa diffusion no ka hana ʻana i nā papa, profiles a me nā ʻāpana me ka paʻakikī
hiki ke hoʻohana ʻia ke ʻano hoʻolei hoʻomau no ka hana ʻana i nā profiles like ʻole.
Palapala:
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