Phofo ea Silicon Boride, SiB6

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Phofo ea Silicon Boride, SiB6

E le thepa ea mofuta oa P-thermoelectric e nang le mocheso o phahameng oa P ho nka boroncarbide, e ka sebelisoa e le mefuta e fapaneng ea likhalase tse silafatsang. E sebelisoa hape e le lisebelisoa tsa boenjiniere tsa ceramic, likhalase tse qhomisang, li-blades tsa khase le likarolo tse ling tse tiisitsoeng tsa sintered le litiiso.


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Morero oa limolek'hule   B6si
Nomoro ea CAS   12008-29-6
Mekhoa  e ntšo le ea bohlooho phofo
Ho teteana  3. 0g / cm3
Qhibiliha  Lilemo tsa 2200 C
Sebelisa  Ha thepa ea mofuta oa P e nang le mocheso o phahameng oa mocheso ho nka sebaka sa boapcarbide, e ka sebelisoa e le varety ea carbide e sa tloaelehang e silafatsang. E tumme joalo ka lisebelisoa tsa boenjiniere tsa ceramic, li-nozzle tse qhomisang, ho etsa likhase tsa khase le likarolo tse ling tse sitsoeng tse tiisitsoeng le litiiso tse Sebelisoang

Silide boride = 92. 95, segokanyipalo sa 3.0 / cm3, qhibiliha ntlha 2200, benyang phofo e bosoeu, insoluble ka metsing, ho hanyetsa ho kena moea, thermalshock ho hanyetsa, ho hanyetsa lik'hemik'hale, haholo-holo tlasa ts'isinyeho ea mafura e na le matla le botsitso bo phahameng ka motlakase o tsoileng matsoho, e ka sebelisoa e le mofuta oa p mocheso o phahameng oa mocheso oa motlakase ho nkela borone carbide, 'me mocheso oa eona o chesang o ka fihla ho 1200 C. E ka sebelisoa e le boenjineri ceramicmaterial, sandblasting nozzle, tlhahiso ea likhase tse fehlang motlakase le likarolo tse ling tse bōpehileng joaloka sintered le litiiso.

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Aluminium borate (AlB2) ke mofuta oa motsoako oa binary o entsoeng ka aluminium le boron. Ke bohlooho bo bofubelu bo bofubelu tlas'a mocheso o tloaelehileng le khatello. E tsitsitse ka har'a asiti e batang e batang, 'me e bole ka asiti e chesang ea hydrochloric le acid ea nitric. Ke e 'ngoe ea metsoako e' meli ea aluminium le boron. E 'ngoe ke alb12, eo hangata e bitsoang aluminium borate. Alb12 ke kristale e ntšo e benyang e benyang e nang le matla a khoheli a 2.55 (18 ℃).

Ha e kenelle ka metsing, asiti le alkali. E bola ka asiti e chesang ea nitric mme e fumanoa ka ho qhibiliha boron trioxide, sebabole le aluminium hammoho.

Ka sebopeho, liathomo tsa B li etsa li-graphite flakes tse nang le liathomo tsa Al lipakeng tsa tsona, tse ts'oanang haholo le sebopeho sa magnesium diboride. Kristale e le 'ngoe ea AlB2 e bonts'a ts'ebetso ea tšepe haufi le axis e tšoanang le sefofane se mahlakore a tšeletseng sa substrate. Likarolo tsa boron aluminium li matlafatsoa ke boron fiber kapa boron fiber e nang le seaparo se sireletsang.

Boleng ba molumo oa fiber ea boron e ka ba 45% ~ 55%. Matla a khoheli a tlase, thepa e phahameng ea mochini. Matla a longitudinal tensile le modulus ea elastic ea unidirectional e matlafalitsoeng boron aluminium composite e ka ba 1.2 ~ 1.7gpa le 200 ~ 240gpa, ka ho latellana.

Modulus le bolelele bo ikhethang ba bolelele ba bolelele ba 3 ~ 5 le makhetlo a 3 ~ 4 a titanium alloy duralumin le alloy steel, ka ho latellana. E sebelisitsoe ho li-fan fan tsa turbojet, likoloi tsa Aerospace le meaho ea satellite. Mokhoa o chesang o hatellang oa ho kopanya o sebelisetsoa ho etsa lipoleiti, lifaele le likarolo tse nang le libopeho tse rarahaneng, 'me mokhoa o tsoelang pele oa ho lahla o ka sebelisoa ho etsa lifaele tse fapaneng.

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