China Supplier Cerium Hexaboride Powder CAS 12008-02-5 CeB6 Powder Price Cerium Boride
Ulwazi olufutshane:
Iimpawu zeCerium Boride:
Ipropati: I-Cerium hexaborate (i-CeB6, ekwabizwa ngokuba yi-cerium borate, i-CeBix, i-CEBIX, ngamanye amaxesha ibhalwe njenge-CeB) yikhompawundi ye-inorganic. I-Cerium hexaborate (i-CeB6) inesakhiwo se-CsCl (yesistim ye-cubic crystal elula, kunye nemimandla emikhulu emele i-Ce element). Umahluko kukuba amaqela e-octahedral e-B6 athatha indawo ye-Cl, ngelixa u-Ce ethatha indawo ye-Cs.
Yimpahla ye-ceramic ephikisayo enomsebenzi ophantsi womsebenzi, okwenza ibe yenye yezinto ezaziwayo ze-cathode kunye ne-electron emissivity ephezulu, kwaye izinzile kakhulu kwi-vacuum. Ubushushu obuqhelekileyo bokusebenza be-cerium hexaborate yi-1450 ° C. I-cerium hexaborate, njenge-lanthanum hexaborate, iya kumka kancinci ibe ngumphunga ngexesha lokusebenza kwe-cathode.
I-CeB6 cathode inokugcina imilo yayo efanelekileyo ixesha elide kwiqondo lokushisa elisebenzayo le-1850 K, okukhokelela kubomi obude. Ngeli xesha, ngenxa yokuba izinga lokuphuma kwamanzi libe ngumphunga malunga ne-30% kancinane kune-lanthanum borate, i-thermal cathode yokwambathisa yecerium borate nayo kunzima ukuyisusa kune-lanthanum borate.
Idatha yobuchwephesha yeCerium Boride:
| Into | Iziphumo zovavanyo % |
| 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 |
Ukusetyenziswa kweCerium Boride:
I-Cerium boride isetyenziswa kakhulu njengengubo yee-cathodes ezishushu, okanye i-cathodes eshushu yenziwe ngokuthe ngqo nge-cerium hexaborate crystals. I-Cerium hexaboride (CeB6) kunye ne-lanthanum hexaboride (i-LaB6) zihlala zisetyenziswa njengeengubo eziphezulu zangoku ze-cathode. I-Hexaborides inomsebenzi ophantsi womsebenzi, malunga ne-2.5 eV, kwaye inokunyamezela okuthile kwi-cathode contamination. I-Cerium boride cathodes inomlinganiselo osezantsi wokuphuphuma komphunga kune-lanthanum boride kwi-1700 K, kodwa ziye zingqinelane kwi-1850 K kwaye zide zibenezinga eliphezulu lokuphuphuma komphunga ngaphezu kobushushu.
I-Cerium boride cathode inobomi obude obungama-50% kune-lanthanum boride ngenxa yokumelana kwayo okuphezulu nongcoliseko lwekhabhoni. Ukukhanya kwe-boride cathode kuphindwe kashumi kwi-tungsten cathode, kwaye ubomi bayo buphindwe ngama-10-15 amaxesha e-tungsten cathode. Olunye ulingo lwaselabhoratri lubonise ukuba i-CeB6 inyamezela ngakumbi kwiziphumo ezibi zongcoliseko lwekhabhoni kune-LaB6. Ngokuqhelekileyo zisetyenziswa kwimimandla efana ne-electron microscopes, iityhubhu ze-microwave, i-electron beam etching, i-electron beam welding, iityhubhu ze-X-ray, kunye ne-laser ye-electron yamahhala.
I-Cerium hexaboride (CeB6) yimathiriyeli ye-cathode ene-electron ephezulu kakhulu ephumayo ngenxa yomsebenzi wayo ophantsi. Iyakwazi ukumelana nongcoliseko lwekhabhoni kwaye inobomi obude kune-lanthanum borate cathodes. Isetyenziswa kakhulu kumasimi anje nge-electron microscopy, iityhubhu ze-microwave, i-electron beam etching, i-electron beam welding, iityhubhu ze-X-ray, kunye ne-laser ye-electron yasimahla. Iikristale ze-Cerium hexaborate zisetyenziswe ngempumelelo kwi-desktop ye-electron microscopes, ibe yimathiriyeli egqwesileyo kwaye izinzile.
Isatifikethi:
Yintoni esinokubonelela ngayo:
