Aluminum diboride AlB2 pauka

ʻO ka wehewehe pōkole:

.Aluminum diboride
Huina molekala: AlB2
Helu CAS: 12041-50-8Nā ʻano: ʻeleʻele a hina hina
Māmā: 3.19 g / cm3
Ka helu hehee:1655°c
Hoʻohana: Cermet


Huahana Huahana

Huahana Huahana

Hōʻike huahana

 1, Hoʻohana ʻia ma ke ʻano he semiconductor mea no ke kiʻekiʻe wela rectifier, doped mea, ka mea paipu, cathode mea a me ka kiʻekiʻe-mahana nukelea reactor neutron absorbing mea.

2, Loaʻa i kēia huila kūikawā ke kūpaʻa maikaʻi, ka wela wela, ke kūpaʻa o ka oxidation, ke kū'ē a me ka mahana i kahi pilina laina. 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 kekahi 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

5

ʻO ka mea hiki iā mākou ke hāʻawi

34


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