Lanthanum Hexaboride Disc Description

Lanthanum Hexaboride Disc (LaB6 Disc, also called lanthanum boride and LaB6) is an inorganic chemical. With melting point 2528 K, LaB6 is a refractory ceramic material, which is highly insoluble in water and converts to oxide when heated (calcined), and is very stable in a vacuum. Stoichiometric samples are colored intense purple-violet, while boron-rich ones (above LaB6.07) are blue. Ion bombardment changes its color from purple to emerald green. LaB6 Disc is a superconductor with a relatively low transition temperature of 0.45 K.

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. High Purity (99.999%) Lanthanum Boride Sputtering Target nanopowder forms may be considered. 

Lanthanum Hexaboride Disc Specification

Lanthanum Hexaboride Disc Applications

* 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

Lanthanum Hexaboride Disc Packing

SAMs’ LaB6 ceramics are carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.

Prototyping service also available for other ceramics material

Alumina

Aluminum Nitride

Boron Nitride

Silicon Carbide

Silicon Nitride

Zirconia

FAQs

1. What are LaB₆ discs used for?

Electron emission sources in SEM, TEM, and X-ray systems.

Target materials or electrode discs in plasma and vacuum devices.

Thermionic emitters or heater elements for high-temperature or UHV environments.

2. What are the main advantages of LaB₆?

Low work function (~2.6–2.8 eV) → efficient electron emission.

High melting point (~2210 °C) → thermal stability.

High electrical conductivity and hardness (Mohs ~9.5).

Long lifetime in high or ultra-high vacuum.

Better brightness and lower power consumption than tungsten emitters.

3. Handling & Storage

Store in dry or inert atmosphere to prevent oxidation.

Avoid moisture and fingerprints on the surface.

Handle carefully — LaB₆ is hard but brittle.

Clean with alcohol or vacuum-compatible solvents before use.

Use in vacuum (<10⁻⁶ Torr) for best performance and lifespan.