Lanthanum Hexaboride (LaB₆) Micron Powder – High Purity 99.95+%, 200 mesh

Description

Lanthanum Hexaboride (LaB₆) Micron Powder – High Purity 99.95+%, 200 mesh

Lanthanum Hexaboride (LaB₆) Micron Powder is a high-purity rare-earth boride material widely recognized for its exceptional thermionic emission properties, high melting point, and chemical stability. With a particle size of 200 mesh and purity of 99.95%, LaB₆ powder is ideally suited for applications in hot cathodes, electron emission devices, aerospace, and advanced electronic systems.

LaB₆ has a density of 2.7 g/cm³ and a high melting point of 2210 °C, making it stable under extreme operating conditions. Due to its low work function (~2.6 eV), it provides excellent electron emission efficiency, outperforming traditional tungsten-based emitters.

Technical Properties

• Purity: 99.95%+

• Average Particle Size: 200 mesh

• Density: 2.7 g/cm³

• Melting Point: 2210 °C

• Form: Dark violet-black crystalline powder

• Crystal Structure: Cubic

Key Features

• High thermionic electron emission efficiency

• Excellent chemical stability and oxidation resistance

• Superior thermal stability at elevated temperatures

• Long operational lifespan in vacuum applications

• Low work function compared to conventional cathode materials

Applications

Electronics & Vacuum Devices

• Hot cathodes for electron microscopes, X-ray tubes, and electron beam welding

• Thermionic emission sources in vacuum electronics and microwave devices

• Electron emitters for photocathodes and thermionic converters

Aerospace & Defense

• Cathode material in plasma thrusters and ion propulsion systems

• Radar and infrared applications requiring stable, high-performance emitters

Material Science & Research

• Standard reference material in X-ray powder diffraction (XRD) for instrument calibration

• High-temperature coatings and advanced composite materials