Lanthanum Hexaboride LaB6 Powder
Formula | LaB6 |
Synonyms | Lanthanum Hexaboride, Lanthanum Boride |
Appearance | Black Powder |
Particle Size | 20 to 500 mesh, can be customized upon request |
Melting Point | 2210 °C |
Density | 4.72 g/cm 3 |
Purity | 99.5-99.9% |
CAS Number | 12008-21-8 |
Description of Lanthanum Hexaboride Powder
Lanthanum Hexaboride (LaB₆) Powder is a fine, dark violet powder known for its high thermal stability, low work function, and excellent electrical conductivity. It is commonly used as a cathode material in electron microscopes, X-ray tubes, and other devices requiring efficient electron emission. LaB₆ is also utilized in advanced ceramics, high-temperature coatings, and abrasive applications due to its hardness and durability. It must be handled with care to prevent inhalation and contact with skin or eyes.
Princeton Powder is a leading supplier of Lanthanum Hexaboride (LaB₆) Powder. Lanthanum boride powder is for sale at a good price.
Chemical Composition
Product | Average Particle Size (D50) | Purity (%) | O (%) | N (%) | C (%) | B (%) | ||
LaB6-1 | 30-50 nm | >99.0 | — | — | — | 30.5~31.8 | ||
LaB6-2 | 1.0-3.0 μm | >99.5 | ≤0.8 | ≤0.10 | ≤0.05 | 30.5~31.8 | ||
LaB6-3 | -325 mesh | >99.9 | ≤0.5 | ≤0.05 | ≤0.05 | 30.5~31.8 | ||
Impurity Composition (%) | ||||||||
Element | Max Value | Typical Value | Element | Max Value | Typical Value | Element | Max Value | Typical Value |
Al | 0.0010 | 0.0005 | Fe | 0.0500 | 0.0300 | P | 0.0010 | 0.0005 |
As | 0.0010 | 0.0005 | K | 0.0020 | 0.0010 | Pb | 0.0003 | 0.0001 |
Bi | 0.0003 | 0.0001 | Mg | 0.0020 | 0.0010 | S | 0.0010 | 0.0005 |
Ca | 0.0015 | 0.0006 | Mn | 0.0010 | 0.0005 | Sb | 0.0020 | 0.0010 |
Cd | 0.0005 | 0.0001 | Mo | 0.0030 | 0.0015 | Si | 0.0050 | 0.0030 |
Co | 0.0005 | 0.0001 | Na | 0.0020 | 0.0005 | Sn | 0.0003 | 0.0001 |
Cr | 0.0050 | 0.0020 | Ni | 0.0050 | 0.0030 | Ti | 0.0050 | 0.0020 |
Cu | 0.0003 | 0.0001 | Nb | 0.0030 | 0.0010 | V | 0.0050 | 0.0010 |
Applications
- Electron Emission Sources: Due to its low work function, Lanthanum Hexaboride powder is widely used as a cathode material in electron microscopes, X-ray tubes, and other electron emission devices.
- Thermionic Emission: Employed in applications requiring thermionic emission, such as in vacuum tubes and plasma generators.
- Abrasives: Sometimes used as an abrasive material in polishing applications due to its hardness.
- Advanced Ceramics: Incorporated into composite materials and advanced ceramics to enhance mechanical properties.
- Coatings and Films: Used in high-temperature and wear-resistant coatings.
Lanthanum Hexaboride Powder Reference
- In this study, the preparation and consolidation of nanocrystalline LaB6 powders originating from powder blends of La2O3, B2O3 and Mg were reported. A consecutive route of mechanochemical synthesis (MCS) and purification was utilized for the achievement of nano-sized LaB6 powders. As-synthesized powders were leached out from intermediate reaction products or impurities. Then, a sequential step of cold pressing (uniaxial pressure at 800 MPa) and pressureless sintering (at 1700 °C for 5 h under Ar gas flow) were utilized for the consolidation of the purified LaB6 powders.