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Ọkpụkpụ boron carbide

Nkọwa dị mkpirikpi:

Boron Carbide (B4C), makwaara dị ka diamond ojii, nke nwere ike siri ike nke Vickers> 30 GPa, bụ ihe nke atọ kachasị sie ike na-esote diamond na cubic boron nitride. Boron carbide nwere akụkụ obe dị elu maka nnabata nke neutrons (ya bụ ezigbo ihe nchebe megide neutron), nkwụsi ike na radieshon ionizing na ọtụtụ kemịkalụ. Ọ bụ ihe kwesịrị ekwesị maka ọtụtụ ngwa arụmọrụ dị elu n'ihi nchikota mara mma ya. Isi ike ya pụtara ìhè na-eme ka ọ bụrụ ntụ ntụ abrasive kwesịrị ekwesị maka ịcha akwa, polishing na ịcha ụgbọ elu mmiri nke ọla na seramiiki.

Boron carbide bụ ihe dị mkpa nke nwere ike dị fechaa na nnukwu igwe. Ngwaahịa UrbanMines nwere ịdị ọcha dị elu yana ọnụ ahịa asọmpi. Anyị nwekwara ahụmịhe dị ukwuu n'inye ngwaahịa B4C dị iche iche. Enwere m olileanya na anyị nwere ike ịnye ndụmọdụ na-enye aka ma nye gị nghọta ka mma banyere boron carbide na ojiji dị iche iche.


Nkọwa ngwaahịa

Ọkpụkpụ boron carbide

Aha ndị ọzọ Tetrabor
Cas No. 12069-32-8
Usoro ọgwụ B4C
Molar uka 55.255 g/mol
Ọdịdị Agba ntụ ntụ ma ọ bụ ntụ ntụ ojii, enweghị isi
Njupụta 2.50 g / cm3, siri ike.
Ebe mgbaze 2,350 Celsius (4,260 °F; 2,620 K)
Ebe esi nri >3500C
Solubility na mmiri Na-adịghị edozi

Ihe eji arụ ọrụ

Knoop ike ike 3000 n'arọ / mm2
Mohs ike 9.5+
Ike Flexural 30 ~ 50 n'arọ / mm2
Mkpakọ 200-300 n'arọ / mm2

Nkọwapụta ụlọ ọrụ maka boron Carbide

Ihe Mba. Ịdị ọcha (B4C%) Mkpụrụ ọka (μm) Mkpokọta boron(%) Mgbakọta Carbide(%)
UMBC1 96-98 75-250 77-80 17-21
UMBC2.1 95-97 44.5-75 76-79 17-21
UMBC2.2 95-96 17.3-36.5 76-79 17-21
UMBC3 94-95 6.5-12.8 75-78 17-21
UMBC4 91-94 2.5-5 74-78 17-21
UMBC5.1 93-97 Oke.250 150 75 45 76-81 17-21
UMBC5.2 97-98.5 Oke.10 76-81 17-21
UMBC5.3 89-93 Oke.10 76-81 17-21
UMBC5.4 93-97 0 ~ 3 mm 76-81 17-21

Kedu ihe Boron Carbide (B4C) na-eji?

Maka ike ya:

Ihe ndị dị mkpa nke Boron Carbide, nke nwere mmasị na onye nrụpụta ma ọ bụ onye injinia, bụ ike siri ike na nguzogide abrasive yiri ya. Ọmụmaatụ a na-ahụkarị maka iji akụrụngwa ndị a kacha mma gụnyere: Mkpọchi; Mgbochi mgbochi ballistic nkeonwe na ụgbọ ala; nozzles na-agbawa agbawa; Akwa-nrụgide mmiri jet cutter nozzles; Ikpochapu ma yikwasị mkpuchi na-eguzogide ọgwụ; Ịcha ngwá ọrụ na-anwụ anwụ; Abrasives; Metal matrix composites; Na breeki lining nke ụgbọ ala.

Maka ike ya:

A na-eji boron carbide mee ihe dị ka ihe nchekwa nchekwa iji guzogide mmetụta nke ihe dị nkọ dị ka mgbọ, shrapnel, na akụ. A na-ejikọta ya na ngwakọta ndị ọzọ n'oge nhazi. N'ihi isi ike ya dị elu, ngwa agha B4C na-esiri mgbọ ike ịbanye. Ihe B4C nwere ike ịmịnye ike nke mgbọ wee wepụ ike dị otú ahụ. N'elu ga-akụrisị n'ime obere ihe siri ike ma emechaa. Iji ihe boron carbide, ndị agha, tankị, na ụgbọ elu nwere ike zere mmerụ ahụ dị njọ site na mgbọ.

Maka akụrụngwa ndị ọzọ:

Carbide boron bụ ihe eji achịkwa nke ọma na ụlọ ọrụ ike nuklia maka ike nnabata neutron, ọnụ ala dị ala, yana nnukwu isi mmalite ya. Ọ nwere oke absorption cross-ngalaba. Ikike nke boron carbide ịbanye neutrons na-enweghị ịmepụta radionuclides dị ogologo oge na-eme ka ọ mara mma dị ka ihe na-adọrọ adọrọ maka radieshon neutron na-ebili na ụlọ ọrụ ike nuklia na site na bọmbụ neutron ndị na-emegide ndị mmadụ. A na-eji Boron Carbide na-echebe, dị ka mkpanaka na-achịkwa n'ime ihe nrụpụta nuklia yana mechiri pellets na ụlọ ọrụ ike nuklia.


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