Lanthanum Hexaboride (LaB6) cathodes usually show 10 times the brightness and 50 times the service life of tungsten cathodes. Nextgen Advanced Materials supplies Lanthanum Hexaboride Cathode with high quality and fast delivery and customized products are also available.
Lanthanum Hexaboride Cathode, LaB6 Cathode
Nextgen Advanced Materials INC is a professional leader Lanthanum Hexaboride Cathode manufacturer with high quality and reasonable price. Welcome to contact us. Lanthanum Hexaboride (LaB6) cathodes usually show 10 times the brightness and 50 times the service life of tungsten cathodes. In electron microscopy applications, these characteristics can convert more electron beam currents on smaller spots of the sample, improve resolution, and reduce the frequency of cathode replacement.
The unique properties of lanthanum hexaboride crystals provide a stable electron emission medium with a work function close to 2.70 eV. The low work function produces a higher current at a lower cathode temperature than tungsten, which means greater brightness or current at the beam focus, and a longer LaB6 cathode life.
We provide LaB6 cathode with customized dimensions; regular purity is 99.5%.
|
Product |
Lanthanum Hexaboride |
Structure |
Polycrystalline |
|
Symbol |
LaB6 |
Thermal Conductive |
47 W/mK (20℃) |
|
Cas No. |
12008-21-8 |
Thermal Expansion |
6.2 10-6K-1 (20-900℃) |
|
Atomic Mass |
203.78 g/mol |
Electrical Resistance |
ca.15 μΩ cm (20℃) |
|
Density |
4.72 g/cm3 |
Electrical Conductivity |
6.65×104 S/cm (20℃) |
|
Melting Point |
2528 K |
Current Density |
150 A/cm2(1950℃) |
|
Hardness |
87.5 RA |
Electron Emissivity |
2.6 eV |
|
Flexure Strength (σ) |
200 Mpa |
Fracture toughness (Kic) |
3.0 MN/m3/2 |
