Ideal Vacuum ALUMINUM OXIDE Pieces - Al₂O₃, 100 Grams, 99.95 Percent Purity, Al₂O₃ Melting Point 2072°C, 1 - 3 mm Pieces, PVD Evaporation Materials, Aluminum Oxide Dielectric Thin Films

This product is a bottle of 100 grams of high purity aluminum oxide pieces - Al₂O₃, 99.95% (3N5) purity, Al₂O₃ melting point 2072 °C, 1 - 3 mm in size, and ships in PET plastic bottles. These pellets have a density of 3.97 g/cc, and a vapor pressure of 10^-4 Torr at 1,550 °C. It has a Z ratio of 0.336

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Aluminum Oxide
Aluminum oxide (Al₂O₃), also known as alumina, is a white, crystalline inorganic compound composed of aluminum and oxygen. It is one of the most widely used ceramic materials due to its excellent mechanical, thermal, and chemical properties. Al₂O₃ is found naturally as the mineral corundum and can also exist in several crystalline forms, including a-alumina, which is the most stable and commonly used form.

Aluminum oxide (Al₂O₃) is widely used in thin film coatings due to its exceptional hardness, chemical resistance, thermal stability, and excellent electrical insulation properties. These attributes make it suitable for a broad range of protective, optical, and electronic applications. Below are its main uses in thin film coatings:

1. Protective Coatings: Wear-Resistant Coatings: Al₂O₃ thin films are applied on cutting tools, mechanical components, and surfaces to protect against abrasion, erosion, and wear, significantly extending the lifespan of the substrate.
2. Corrosion-Resistant Coatings: Used as a barrier layer on metals and ceramics to prevent chemical attack, oxidation, and degradation in harsh environments.
3. Optical Coatings: Anti-Reflective (AR) Coatings: Al₂O₃’s high transparency and stable refractive index make it ideal for AR coatings on lenses, displays, and optical devices, reducing unwanted reflections and improving light transmission.
4. Optical Coatings: Dielectric Mirrors and Interference Filters: Employed as a high-refractive-index layer in multilayer thin films for constructing dielectric mirrors and optical filters, enabling precise control of light wavelengths.
5. Electronic and Insulating Coatings: Dielectric Layers: Al₂O₃ serves as a high-quality dielectric in thin film capacitors and electronic devices, providing high dielectric strength and excellent insulation.
6. Transparent Protective Coatings: Al2O3 thin films are applied as transparent protective coatings on optical components, screens, and display surfaces to prevent scratches, moisture ingress, and chemical damage without compromising optical clarity.

Al₂O₃’s unique combination of mechanical strength, thermal stability, chemical inertness, and optical clarity makes it a versatile material in thin film coatings for protective, optical, and electronic applications. Its ability to provide durable protection and functional enhancements makes it a popular choice across multiple industries, from optics to electronics.