Lanthanum Aluminum Oxide

Lanthanum Aluminum Oxide powder is a kind of inorganic compound powder with twisted chalcogenide structure, brown to optically transparent appearance, density 6.52g/cm³, melting point up to 2080℃, insoluble in water and mineral acid (at 25℃) but soluble in phosphoric acid at high temperature, molecular weight 213.89g/mol, which has important applications in the fields of laser crystal, high temperature superconducting thin film, high temperature antioxidant coating and so on. It has important applications in laser crystal, high-temperature superconducting film, high-temperature antioxidant coating and many other fields.

Properties

Appearance: Lanthanum Aluminum Oxide powders usually have a tan to optically clear appearance, the colour of which may be dependent on factors such as particle size and crystallinity of the powder.

Density: Density of 6.52g/cm³, high density allows for a high mass-to-volume ratio, which is advantageous in scenarios where high density materials are required.

Crystal structure: Has a twisted chalcogenide structure, which brings unique physical properties such as higher stability and specific electrical and optical properties. The crystal structure changes at different temperatures, from rhombohedral at room temperature to cubic at higher temperatures (>435 °C).

Melting point: melting point up to 2080 ℃, high melting point to ensure that it is still in the high temperature environment can maintain a stable structure and performance, can be applied to high temperature working conditions of the material or device.

Solubility: insoluble in water, insoluble in mineral acid at 25℃, but soluble in phosphoric acid at temperatures above 150℃.

Stability: Lanthanum Aluminum Oxide is chemically stable and does not easily react with other substances at room temperature and pressure, but under specific conditions, such as high temperature and strong oxidants, chemical changes may occur.

Activity: Lanthanum Aluminum Oxide has a certain activity and a large specific surface area, which makes it can be used as a catalyst or a carrier of catalyst in some catalytic reactions.

Applications

Electronic materials field:
Substrate material: due to its characteristics of good lattice matching, small thermal expansion coefficient, low dielectric constant, and small microwave loss, it can be used as the substrate material for epitaxial growth of semiconductor materials (e.g., high-temperature superconducting materials, ferroelectric materials, etc.). For example, in the preparation of high-temperature superconducting films, lanthanum aluminate substrate can provide a good growth basis for superconducting films, so that they have excellent superconducting properties. In some electronic devices, as a substrate can ensure the stability and performance of the device.
Electronic ceramic materials: Lanthanum Aluminum Oxide can be used to prepare a variety of electronic ceramics, such as the dielectric material for multilayer ceramic capacitors (MLCC). Its good dielectric properties can meet the requirements of electronic ceramics on the dielectric properties of the material, help to improve the performance and reliability of electronic ceramic devices.
Microwave dielectric materials: Lanthanum Aluminum Oxide is used in the manufacture of microwave dielectric resonators and other microwave devices. At microwave frequencies, lanthanum aluminate powder has a suitable dielectric constant and low dielectric loss, which can effectively transmit and process microwave signals, and has important applications in the field of communications, radar and other fields.

Optical field:
Optical glass and optical fibre: Lanthanum Aluminum Oxide can be used to make optical glass components and optical fibres. It has good transparency and stability in optics, and can provide optical glass and optical fibre with excellent optical properties, such as high refractive index, low scattering, etc. It is suitable for optical communication, optical imaging and other fields.
Laser Crystal Material: Lanthanum Aluminum Oxide can be used as matrix material or dopant for laser crystal after special treatment and doping. In laser systems, lanthanum aluminate-based laser crystals can produce stable laser output with high laser efficiency and good optical quality.

Catalytic field:
Catalyst Carrier:Lanthanum Aluminum Oxide is often used as a carrier for catalysts due to its large specific surface area and good chemical stability. It can be loaded with various active metal or metal oxide catalysts to improve the dispersion and stability of the catalyst, thus enhancing the efficiency of the catalytic reaction. For example, in some organic synthesis reaction, automobile exhaust purification and other catalytic process, lanthanum aluminate powder as a carrier can effectively improve the performance of the catalyst.
Catalyst: It also has certain catalytic activity itself, and can be directly used as a catalyst to participate in certain chemical reactions, such as partial oxidation reaction and dehydrogenation reaction.

High temperature structural material field:
High-temperature coating materials: Lanthanum Aluminum Oxide can be prepared into high-temperature antioxidant coatings, coated on the surface of metal or ceramic materials, to improve the antioxidant and corrosion-resistant properties of the materials in high-temperature environments. For example, in the aerospace field, some high-temperature components need to use antioxidant coatings to protect them from working properly in the harsh environment of high temperature and high pressure.
Crucible material: with high thermal and chemical stability, it is expected to be used as the crucible material for melting of high chemical activity alloys (such as rare earth hydrogen storage alloys, NdFeB alloys, samarium cobalt alloys, etc.), which is able to withstand high temperatures and chemical erosion to ensure the melting process smoothly.

Other fields:
Doped materials: used as dopant in some materials to change the properties of the materials. For example, doping lanthanum aluminate powder in ceramic materials can improve the strength, toughness and high temperature resistance of ceramics.
Reinforcement materials: adding lanthanum aluminate powder in polymer materials can improve the mechanical properties, thermal stability and flame retardant properties of polymers. For example, in some plastics, rubber and other materials, the addition of lanthanum aluminate powder can enhance the strength and heat resistance of the material.