Cerium Boride, also called Cerium Hexaboride or CeB6, is a refractory ceramic material. The principal use of cerium hexaboride is a coating of hot cathodes or hot cathodes made of cerium hexaboride crystals. It usually operates at a temperature of 1450 °C.
Borides are hard, high-melting materials with metal-like conductivity, and they are stable to nonoxidizing acids but break down in strong oxidizing agents and strong alkalis. Borides are used in semiconductors, superconductors, diamagnetic, paramagnetic, ferromagnetic, anti-ferromagnetic, turbine blades, and rocket nozzles.
Parameter
|
Units | LaB6 | CeB6 |
---|---|---|---|
Stoichiometry |
N/A
|
~6
|
|
Metal Impurities |
ppm by wt.
|
<30
|
|
Density |
g/cm3
|
4.72
|
4.80
|
Coefficient of Thermal Expansion |
α x 106
|
5.6
|
6.2
|
Electrical Resistivity |
Ω-cm
|
~50
|
~65
|
Effective Work Function (100) at 1800 K |
eV
|
2.70
|
2.65
|
Spectral Emissivity at 0.65 microns |
N/A
|
0.765
|
0.779
|
Evaporation rate at 1800 K (UHV) |
g/cm2/s
|
2.2 x 10-9
|
1.6 x 10-9
|
Orientation limit for specific orientation |
degrees
|
<2
|
|
Pyrolitic block mount resistance @ 1800 K |
Ohms
|
1.45
|
-Thermionic emission (cathode)
-Plasma source for plasma-enhanced coating(PECVD)
-Vacuum electron beam welding machine
-Electron beam surface reforming device
-Electron beam lithography device
-Transmission electron microscope
-Scanning electron microscope
-Surface analysis device
-Radiotherapy devices
ACM’s Cerium Hexaboride Powder is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.