Cerium Boride, also called Cerium hexaboride, is one of the rare earth borides, the molecular formula is CeB6. Stanford Materials Corporation (SMC) supplies our customers with high-quality Cerium Hexaboride ceramic powder (CeB6 ceramic).
Cerium hexaboride is a rare earth boride. It has a relatively low work function that is about 2.5 eV, so decide it is a cathode material of extremely high electron emissivity. It is also a refractory ceramic material. Cerium boride is stable in a vacuum. CeB6 is dense Kondo-like behavior. It has better resistance to carbon pollution and longer life than the lanthanum boride cathode. Its working temperature is 1450℃ usually. Cerium hexaboride like LaB6 will slowly evaporate at the working period. Cerium boride is insoluble in water. Cerium hexaboride mainly uses for a coating of hot cathodes, or cerium boride crystal makes up hot cathodes directly.
Applications of Cerium Hexaboride Powder
Used to coat some high-current hot cathodes
Electron microscopes such as SEM, TEM
X-ray tubes
Electron lithography
Electron beam welding
Specifications of Cerium Hexaboride Powder
Other Names
Cerium boride, CeBIX
Chemical Formula
CeB6
EC Number
234-526-9
Molar Mass
204.986
Density
4.8g/cm3
Solubility in Water
Insoluble
Crystal Structure
Cubic
Space Group
Pm3m;Oh
Chemical Composition of Cerium Hexaboride Powder
CeB6 (% min.)
99.9%
B(% min.)
31%
Rare Earth Impurities
Non-RE Impurities
La
<120ppm
Fe
<250ppm
Pr
<150ppm
Si
<100ppm
Nd
<180ppm
Ca
<90ppm
Sm
<112ppm
C
<300ppm
Y
<250ppm
Mg
<100ppm
Ti
<100ppm
Storage Conditions of Cerium Hexaboride Powder
Cerium Hexaboride Powder should be stored in a dry, cool, and sealing environment, cannot be exposed to air, in addition, should avoid heavy pressure, according to ordinary goods transportation.