China Supplier Cerium Hexaboride Powder CAS 12008-02-5 CeB6 Theko ea phofo Cerium Boride
Lintlha tse khutšoane:
Likarolo tsaCerium Boride:
Thepa: Cerium hexaborate (CeB6, eo hape e tsejoang e le cerium borate, CeBix, CEBIX, eo ka linako tse ling e ngotsoeng e le CeB) ke motsoako oa inorganic. Cerium hexaborate (CeB6) e na le sebopeho sa CsCl (e leng sa tsamaiso e bonolo ea kristale ea cubic, e nang le likarolo tse kholo tse emelang Ce element). Phapang ke hore lihlopha tsa B6 octahedral li nka boemo ba Cl, ha Ce e le boemong ba Cs.
Ke thepa ea ceramic e refractory e nang le ts'ebetso e tlase ea mosebetsi, e etsang hore e be e 'ngoe ea lisebelisoa tse tsebahalang tsa cathode tse nang le mosi o phahameng ka ho fetisisa oa elektronike, hape o tsitsitse haholo ka vacuum. Mocheso o tloaelehileng oa ho sebetsa oa cerium hexaborate ke 1450 ° C. Cerium hexaborate, joaloka lanthanum hexaborate, e tla fetoha mouoane butle nakong ea ts'ebetso ea cathode.
Cathode ea CeB6 e ka boloka sebopeho sa eona se nepahetseng ka nako e telele mocheso oa ts'ebetso oa 1850 K, e leng se bakang nako e telele ea bophelo. Ho sa le joalo, ka lebaka la sekhahla sa mouoane oa eona se ka bang 30% butle ho feta lanthanum borate, mocheso oa cathode oa cerium borate le oona o thata ho o tlosa ho feta lanthanum borate.
Lintlha tsa tekheniki tsa Cerium Boride:
| Ntho | Sephetho sa teko % |
| B | 31.6 |
| Ce | 67.9 |
| Si | 0.0004 |
| Mg | 0.0001 |
| Mn | 0.0001 |
| Fe | 0.01 |
| Ca | 0.003 |
| Cu | 0.0002 |
| Cr | 0.0001 |
Tšebeliso ea Cerium Boride:
Cerium boride e sebelisoa haholo-holo e le seaparo sa li-cathodes tse chesang, kapa li-cathodes tse chesang li entsoe ka ho toba ka likristale tsa cerium hexaborate. Cerium hexaboride (CeB6) le lanthanum hexaboride (LaB6) li atisa ho sebelisoa e le liphahlo tse phahameng tsa hona joale tsa cathode. Li-hexaborides li na le ts'ebetso e tlase ea mosebetsi, e ka bang 2.5 eV, 'me e na le mamello e itseng ho tšilafalo ea cathode. Cerium boride cathodes e na le sekhahla se tlase sa mouoane ho feta lanthanum boride ho 1700 K, empa e fetoha e tsitsitseng ho 1850 K esita le ho ba le sekhahla se phahameng sa mouoane ho feta mocheso oo.
Cerium boride cathode e na le nako e telele ea 50% ho feta lanthanum boride ka lebaka la khanyetso e phahameng ea carbon. Khanya ea boride cathode e makhetlo a leshome ho feta ea tungsten cathode, 'me nako ea eona ea bophelo ke makhetlo a 10-15 ho feta a tungsten cathode. Liteko tse ling tsa laboratori li bonts'itse hore CeB6 e mamella litlamorao tse mpe tsa tšilafalo ea khabone ho feta LaB6. Hangata li sebelisoa masimong a kang microscopes ea elektrone, li-tubes tsa microwave, elektrone beam etching, electron beam welding, X-ray tubes, le lisebelisoa tsa mahala tsa electron.
Cerium hexaboride (CeB6) ke thepa ea cathode e nang le mosi o phahameng haholo oa elektronike ka lebaka la mosebetsi oa eona o tlase. E hanyetsana le tšilafalo ea carbon 'me e phela nako e telele ho feta lanthanum borate cathodes. E sebelisoa haholo libakeng tse kang electron microscopy, microwave tubes, electron beam etching, electron beam welding, X-ray tubes, le lisebelisoa tsa mahala tsa electron. Likristale tsa Cerium hexaborate li 'nile tsa sebelisoa ka katleho ho li-microscopes tsa elektronike tsa desktop, tsa fetoha lisebelisoa tse ntle haholo le tse tsitsitseng tsa filament.
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