LA1409 Lanthanum Boride Powder, LaB6 Powder

LaB6 Powder Properties

Lanthanum Hexaboride powder

Compound Formula	LaB6
Molecular Weight	203.78
Appearance	Purple
Melting Point	2210 °C
Density	4.72 g/cm3
Solubility in H2O	Insoluble
Crystal structure	Cubic

LaB6 Powder Description

Lanthanum Boride, also called Lanthanum Hexaboride or LaB6, is an inorganic chemical and refractory ceramic material. It has a high melting point of 2210 °C and is insoluble in water and hydrochloric acid. It has a low work function and one of the highest electron emissivity known, and is stable in a vacuum. Therefore, the principal use of lanthanum hexaboride is as a coating deposited by physical vapor deposition of hot LaB6 filament, or to manufacture hot cathodes made of LaB6 single crystals. It is also used as a size/strain standard in X-ray powder diffraction to calibrate instrumental broadening of diffraction peaks.

LaB6 Powder Specifications

Product	Lanthanum Hexaboride	Structure	Polycrystalline
Symbol	LaB6 cathode	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 Conductive	6.65×10⁴S/cm (20℃)
Melting Point	2528 K	Current Denstiy	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

LaB6 Powder 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
-Radio therapy devices

Packing Service

ACM’s LaB6 Powder is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.