China Mutengesi Cerium Hexaboride Powder CAS 12008-02-5 CeB6 Poda Mutengo Cerium Boride

Ruzivo rupfupi:

Features ofCerium Boride:

Zvivakwa: Cerium hexaborate (CeB6, inozivikanwawo se cerium borate, CeBix, CEBIX, dzimwe nguva inonyorwa seCeB) inorganic compound. Cerium hexaborate (CeB6) ine CsCl chimiro (cheiyo yakapfava cubic crystal system, ine mativi makuru anomiririra Ce element). Musiyano ndewekuti B6 octahedral masumbu anogara pachinzvimbo cheCl, nepo Ce achitora chinzvimbo cheCs.

Iyo inorambidzika ceramic zvinhu ine yakaderera basa basa, zvichiita kuti ive imwe inozivikanwa cathode zvinhu zvine erekitironi emisisivity yepamusoro, uye zvakare yakagadzikana zvakanyanya muvacuum. Iyo yakajairika tembiricha yecerium hexaborate i1450 ° C. Cerium hexaborate, senge lanthanum hexaborate, inobuda zvishoma nezvishoma panguva yekushanda kwecathode.

Iyo CeB6 cathode inogona kuchengetedza chimiro chayo chakanakisa kwenguva yakareba pane tembiricha yekushandisa ye1850 K, zvichikonzera hupenyu hurefu. Zvichakadaro, nekuda kwekubuda kwayo kwemvura kunenge 30% kunonoka pane iyo yelanthanum borate, iyo inopisa cathode yakavharidzirwa yecerium borate zvakare yakaoma kubvisa kupfuura lanthanum borate.

Tekinoroji data yeCerium Boride:

Kushandiswa kweCerium Boride:

Cerium boride inonyanya kushandiswa seyekuputira kune inopisa cathodes, kana inopisa cathodes inoumbwa zvakananga necerium hexaborate crystals. Cerium hexaboride (CeB6) uye lanthanum hexaboride (LaB6) inowanzoshandiswa seyakakwira ikozvino cathode coatings. Hexaborides ine basa rakaderera rebasa, rakatenderedza 2.5 eV, uye rine kumwe kushivirira kune cathode kusvibiswa. Cerium boride cathodes ine yakaderera evaporation mwero pane lanthanum boride pa 1700 K, asi anozoenderana pa 1850 K uye anotove nemwero wepamusoro we evaporation pamusoro petembiricha iyoyo.

Cerium boride cathode ine 50% yenguva yakareba yehupenyu kupfuura lanthanum boride nekuda kwekukwirira kwayo kusvibiswa kwekabhoni. Kupenya kwebhoride cathode kakapetwa kagumi kune tungsten cathode, uye hupenyu hwayo ndeye 10-15 nguva yetungsten cathode. Zvimwe zviedzo zvemurabhoritari zvakaratidza kuti CeB6 inoshivirira kune zvakaipa zvinokonzerwa nekusvibiswa kwekabhoni pane LaB6. Anowanzo shandiswa muminda yakaita sema electron microscopes, microwave tubes, electron beam etching, electron beam welding, X-ray tubes, uye emahara maelectron lasers.

Cerium hexaboride (CeB6) chinhu checathode chine yakanyanya kukwira maerekitironi emissivity nekuda kwekushanda kwayo kwepasi. Inonyanya kupikisa kusvibiswa kwekabhoni uye ine hupenyu hurefu kupfuura lanthanum borate cathodes. Inoshandiswa zvakanyanya muminda yakadai seelectron microscopy, microwave tubes, electron beam etching, electron beam welding, X-ray tubes, uye emahara erekitironi lasers. Cerium hexaborate makristasi akaiswa zvinobudirira mudesktop scanning electron microscopes, ikava yakanakisa uye yakagadzikana filament zvinhu.

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