ʻO Aluminium Boride Powder, AlB2

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ʻO Aluminium Boride Powder, AlB2

ʻO ke alumini boride (AlB2) kahi ʻano o ka hoʻopili binary i hoʻokumu ʻia e ka alumini a me ka boron.

He ʻulaʻula hina hina ia ma lalo o ka mahana maʻamau a me ke kaomi. Kūpaʻa ia i ke anuanu dilute acid, a decomposed i ka wela hydrochloric acid a me ka nitric acid. ʻO ia kekahi o nā hui ʻelua o ka alumini a me ka boron.


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Kaulana Molecular  AB2
Helu CAS  12041-50-8
Nā ʻano  ʻeleʻele a hina hina
Ka mānoanoa  3.19 Bi / cm3
Kuhi hoʻoheheʻe  1655C
Hoʻohana  ʻO Cermet

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COA

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ʻO ka borate alumini (AlB2) kahi ʻano o ka hui binary i hoʻokumu ʻia e ka alumini a me ka boron. He ʻulaʻula hina hina ia ma lalo o ka mahana maʻamau a me ke kaomi. Kūpaʻa ia i ke anuanu dilute acid, a decomposed i ka wela hydrochloric acid a me ka nitric acid. ʻO ia kekahi o nā hui ʻelua o ka alumini a me ka boron. ʻO ka alb12 ʻē aʻe, i kapa mau ʻia ka borate alumini. ʻO Alb12 kahi aniani aniani monoclinic lustrous me ka umekaumaha kikoʻī o 2.55 (18 ℃).

ʻAʻole hiki ke hoʻoheheʻe ʻia i ka wai, ʻakika a me ka alkali. Hoʻopau ia i ka waikawa nitric wela a loaʻa ʻia e ka hoʻoheheʻe ʻana i ka boron trioxide, ka luaipele a me ka aluminika pū.

I ke kūkulu ʻana, hana nā ʻĀtoma B i nā flake graphite me nā ʻĀtoma Al ma waena o lākou, kahi like loa me ke ʻano o ka magnesium diboride. Hōʻike ke aniani hoʻokahi o AlB2 i ka conductivity metala ma ke axis i kūlike i ka mokulele hexagonal o ka substrate. Hoʻoikaika ʻia nā mea hoʻohui alumini Boron e ka pulina boron a i ʻole ka pulina boron me ka uhi pale.

ʻO ka nui o ka nui o ka fiber boron ma kahi o 45% ~ 55%. Ka umekaumaha haʻahaʻa haʻahaʻa, nā pono mechanical kiʻekiʻe. ʻO ka ikaika hoʻolōʻihi lōʻihi a me ka modulus elela o ka hoʻohui alumina boron i hoʻonui ʻia e pili ana iā 1.2 ~ 1.7gpa a me 200 ~ 240gpa.

ʻO ka modulus elastis modulus a me ka ikaika kikoʻī ma kahi o 3 ~ 5 mau manawa a me 3 ~ 4 mau manawa o ka titanium alloy duralumin a me ke kila kila. Hoʻohana ʻia ia i nā pahi pā turbojet engine fan, nā kaʻa mokulele a me nā kūkulu ukali. Hoʻohana ʻia ka papa hana hoʻopaʻa diffusion wela e hana ai i nā pā, nā ʻikepili a me nā ʻāpana me nā kinona paʻakikī, a hiki ke hoʻohana ʻia i ke kiola ʻana e hoʻomau i nā ʻano like ʻole.

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