Between 20 and 80µm available size and with unique physical and chemical characteristics, RSA dense alumina microbeads integrate into a wide range of high-tech applications.
With a perfect spherical shape, these fused alumina microbeads have a high density and an excellent flow ability, which adds to well known properties of alumina : high hardness, good electrical insulation and permittivity, chemical inertia. All these characteristics have been tested successfully in : ceramics, composites materials, specific refractory materials composition, thermocouples insulation
RSA Optronics Microbeads… success of crystal growing
Besides Verneuil crackles widely used as raw material for crystal growth, RSA proposes its High pure “Optronics Microbeads” alternative for static and continuous feeding systems for crucible charge in bulk crystal growth. The chemical quality of the product is perfectly controlled, making it easier to directly fill the crucibles used by all sapphire or laser crystal growing technologies: EFG, Kyropulos, Bagdasarov, CZ for YAG crystals.