Lanthanum Boride rods are rods of lanthanum (La) and boron (B), usually black or purple in colour, with high hardness, high melting point, good electrical conductivity and chemical stability, and can be used in a variety of application scenarios, such as electronic emission, high-temperature equipment components, and instrument manufacturing.
Characteristics
Colour: Lanthanum Boride is usually violet or dark purple in colour, a distinctive colour that makes it easy to identify the material.
High melting point: With a melting point of 2210°C (approx. 2528K), it is a high melting point material that maintains a stable structure and properties at high temperatures, making it suitable for high temperature working conditions.
High hardness: Lanthanum Boride has high hardness, good mechanical strength and abrasion resistance, and is not easy to be worn or deformed in the process of use, and can maintain good shape and dimensional stability.
High density: density of 4.72g/cm³, high density makes it advantageous in some applications that require material density.
Low Coefficient of Thermal Expansion: With a coefficient of thermal expansion of 6.2 x 10-⁶ K-¹ (20 – 900°C), it has relatively small dimensional changes during temperature changes and good thermal stability.
High chemical stability: insoluble in water and hydrochloric acid at room temperature, it has good stability in general chemical environment. However, it will be oxidised at 600 – 700℃ under oxygen atmosphere; in vacuum atmosphere, it is easy to react with other substances or gases to form low melting point substances.
Strong anti-poisoning ability: under high temperature conditions, the substances formed on the surface of the material will be volatilised continuously, so that the low escape work surface of lanthanum hexaboride crystals is exposed to the emitting surface, thus it has excellent anti-poisoning ability.
High electrical conductivity: the conductivity is high, 6.65×10⁴ S/cm (20℃), which can conduct current effectively, and it is a good electron-conducting material.
Low electron escape work: It has low electron escape work, which means that it can emit electrons at lower energy, so it has important application value in the field of electron emission.
Crystal Structure Properties: Lanthanum Boride has a cubic crystal structure. This special crystal structure provides it with unique physical and chemical properties that enable it to exhibit excellent performance in different application scenarios.
Applications
Thermal cathode materials: ideal materials for making cathodes for high-power electron tubes, magnetrons, electron beams, ion beams, accelerators and other equipment, capable of providing stable electron emission, widely used in electron microscopes, electron beam welding, discharge tubes and other equipment requiring large emission currents.
Semiconductor manufacturing: it can be used in semiconductor manufacturing process such as thin film deposition, etching and other processes to improve the performance of semiconductor devices.
X-ray analysis: Lanthanum Boride can be used as a size/strain standard for X-ray powder diffraction and to calibrate the instrumental broadening of diffraction peaks.
Electron Microscopy: Used as cathode material in electron microscopes to provide high brightness and stable electron emission, thus improving the imaging quality of electron microscopes.
Surface Analysis Equipment: Electron sources used in surface analysis equipment to provide high energy electron beams for the analysis of the surface structure and composition of materials.
Vacuum technology field: Lanthanum Boride can be used in equipment such as vacuum electron beam welding machines to provide stable electron emission in a vacuum environment for high quality welding.
Medical field: Possible applications in radiotherapy equipment, e.g. as a material for generating specific radiation or as a component for radiation sources.
Aerospace field: Due to its characteristics of high temperature resistance, high hardness and high conductivity, it can be used in high-temperature components and electronic equipment in the aerospace field.
VI HALBLEITERMATERIAL GmbH (VIMATERIAL) employs a stringent quality assurance system to ensure the reliability of our product quality. Strict quality control is implemented throughout the entire production chain, and for defective products, we strictly enforce the principle of rework and redo. Each batch is released only after passing detailed specification tests.
Every batch of our materials is independently tested, and, if necessary, we send samples to certified companies for testing. We provide these documents and analysis certificates with the shipment to certify that our products meet the required standards.
Contact our team of experts today and let us help you with your business!
