Fluoroalumino-silicate glass

Product Overview

Fluoroaluminosilicate glass is a high-performance specialty glass composed primarily of fluorine (F), aluminum (Al), silicon (Si), and oxygen (O). Made through a unique formula and high-temperature melting process, it boasts an exceptional chemical composition that imparts outstanding optical, mechanical, and chemical properties. It is widely used in dental materials, optical devices, electronic packaging, and high-temperature industrial applications.

Feature

High Refractive Index and Optical Uniformity

Refraction range of 1.48-1.52 (customizable), high match with common resin materials (such as UDMA), enhancing the light transmittance and optical properties of composite materials.

Low dispersion characteristics reduce chromatic aberration in optical components, suitable for high-precision optical lenses and coated substrates.

Chemical Stability and Corrosion Resistance

Corrosion-resistant, particularly to acid and alkali, and excels in fluoride-containing environments. Suitable for chemical equipment sight glasses and corrosion-resistant coatings.

The introduction of fluorine enhances the chemical stability of glass, reducing ion leaching.

Mechanical properties and thermal stability

The hardness reaches 6-7 Mohs, with better wear resistance than ordinary glass, thus extending the lifespan of products.

Softening temperatures of 800-1000°C, suitable for sealing, encapsulation, and structural components in high-temperature environments.

Biocompatibility

Non-toxic, releasing fluoride ions, and cavity-preventing, widely used in dental resin fillings and glass ionomer cements.

Typical Applications

Dental Materials

Resin-based Composite Materials: Serving as a substitute for barium glass powder, when used in conjunction with UDMA resins, enhance the strength, transparency, and wear resistance of the filling material.

Glass Ionomer Cement: With Poly-Propionic acidReactive formulations for restorative materials used in dental cavity fillings and crown bonding.

Optics Industry

Optical Lenses and Prisms: High refractive index and low dispersion properties are suitable for camera lenses, telescopes, and other precision optical components.

Coating Substrate: High surface flatness for AR (Anti-Reflective) and IR (Infrared) coating applications, enhancing the performance of optical devices.

Electronic Packaging

Chip Packaging: Withstanding high temperatures and humidity, it can serve as a semiconductor packaging material to protect chips from environmental erosion.

Sensor Window: Maintains stability in harsh environments (such as high temperatures, high pressures) for industrial sensors and automotive electronics.

High-Temperature Industrial

High-Temperature Sight Glasses: Withstanding temperatures up to 1000°C, designed for observation windows in boilers, furnaces, and other equipment.

Sealing Materials: Used for metal or ceramic sealing in vacuum equipment and high-temperature pipelines.