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PBN Crucibles for Precision Application

Pyrolytic Boron Nitride Crucible can withstand high temperatures in a high vacuum environment. It has excellent thermal conductivity, corrosion resistance, and electrical resistance.

LA1409 Lanthanum Boride Powder, LaB6 Powder

Catalog No. LA1409
Molecular Formula LaB6
Molecular Weight 203.78
Appearance Purple
Melting Point 2210 °C
Density 4.72 g/cm3
Solubility in Water Insoluble
Crystal Structure Cubic

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LA1409 Lanthanum Boride Powder, LaB6 Powder

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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 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

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.