• Source: Barium hexaboride

Barium hexaboride is a hard material with a high melting point. It can be formed by passing a barium vapour at >750 °C over boron crystals:

Ba + 6B → BaB6
However, it can also be formed by reacting barium chloride with boron in two stages: firstly at 900 °C for 30 minutes and then at 1,500 °C for 60 minutes.




Potential applications


Barium hexaboride has been considered as a candidate for use in hot-cathode electron guns.




References

Kata Kunci Pencarian:

• Barium hexaboride
• Hot cathode
• List of inorganic compounds
• Glossary of chemical formulae
• Samarium
• Large Plasma Device
• List of superconductors
• Suchitra Sebastian
• Lanthanide
• Boron