详情描述

· DensityTypically around 2.4 - 2.8 g/cm³, the specific value may vary slightly due to the precise composition of the glass powder and the manufacturing process.

Particle size distributionAdjustable according to different preparation methods and application requirements, the particle size generally ranges from a few micrometers to several tens of micrometers, for instance, D50 (the particle size at which the cumulative particle size distribution reaches 50%) may be around 10-30μm.

Refractive IndexTypically ranges between 1.5 - 1.6, this parameter is of significant importance for its application in the optical field.

Thermal expansion coefficientTypically ranges from (80 - 120)×10⁻⁷/°C, higher than that of common silicate glass. This is due to the addition of elements like strontium, boron, and aluminum, which allow for better matching and sealing with certain metals.

Specific Surface AreaSpecific surface area is typically between 1 - 10 m²/g, with the size of the specific surface area affecting the reactivity of the glass powder and its dispersion properties in composite materials.

Chemical CompositionComposed primarily of strontium oxide (SrO), boron oxide (B₂O₃), aluminum oxide (Al₂O₃), and silicon dioxide (SiO₂), the ratios of these components vary depending on the specific glass formula. For instance, in common formulas, SiO₂ content may range from 40% to 60%, B₂O₃ from 10% to 20%, Al₂O₃ from 5% to 15%, and SrO from 10% to 30%.

Chemical StabilityGood chemical stability; alkali and acid resistance is superior to common silicate glass. In general acidic and alkaline environments, its corrosion rate is lower, but...Hydrofluoric AcidIn contact with highly corrosive acids, a chemical reaction will still occur, leading to corrosion.

SolubilityVery low solubility in water, almost insoluble. However, under certain conditions, it can partially dissolve or react in specific solvents or fluxes.

  • Electronic PackagingDue to its good thermal expansion coefficient matching with certain metals, it can be used for encapsulating electronic components, effectively protecting them from external environmental influences while ensuring the stability of the encapsulation structure under various temperature conditions, thereby enhancing the reliability and service life of electronic equipment.

  • Glass-Ceramic FabricationIt is a key raw material for producing high-performance glass ceramics. After adding this glass powder and undergoing a specific heat treatment process, the crystal phase composition and microstructure of the glass ceramics can be precisely controlled, resulting in glass ceramic materials with excellent mechanical, thermal, and optical properties. These materials are widely used in aerospace, automotive manufacturing, and the electronics industry.

  • Paints and coatingsAdd to paints to enhance hardness, wear resistance, and corrosion resistance. The formed coating boasts good density and adhesion, suitable for protective coatings on surfaces of metals, ceramics, and other materials, thereby improving their service life and decorative properties. Widely used in industries such as construction, machinery manufacturing, and shipbuilding.

  • Dental MaterialsDue to its good biocompatibility and suitable physical and chemical properties, it can be used to manufacture dental restoration materials such as crowns and bridges. It can bond well with human tooth tissue, offering excellent aesthetics and mechanical properties, meeting the functional and aesthetic requirements of dental restoration.

  • Optics fieldIn certain optical devices, such as lenses and prisms, their specific refractive indices and optical properties allow for adjusting light paths and enhancing image quality. Additionally, they are used in the production of fiber预制 rods for optical communication, playing a crucial role in the transmission and processing of light signals.