Fused silica powder

First, fused silica powder Overview: Fused Silica (Fused silica) is made of high quality natural quartz powder processing technology through a unique process and formed by high-temperature treatment, the molecular structure of the arrangement by the ordered into disordered arrangement. Color white, high purity and has the following features: low coefficient of linear expansion; good electromagnetic radiation; resistance to chemical corrosion stable chemical properties; reasonable and orderly, controllable particle size distribution. Fused silica powder using a very wide range. Second, our product specification sheet: Fused Silica 800 600 mesh size of 400 mesh mesh mesh 1000 1500 3000 2000 mesh mesh mesh mesh 8000 6000 4000 Head Head III fused silica powder performance parameters: the chemical composition of the physical properties of crystalline SiO2% 99-99.9 state amorphous Fe2O3% ≤0.010 melting point ℃ 1700-1750 Al2O3% ≤0.10% ≤0.04 boiling point ℃ 2230 water density g / cm 2.0-2.65 LOI% ≤0.10 Mohs hardness 7-7.5 Conductivity μs / cm ≤3 packaging kg 25 Fourth, the characteristics and advantages of fused silica powder: fused silica powder is made from natural quartz, high temperature melting, after cooling the amorphous silicon dioxide as the main raw material, and then processed by a unique process from the powder. The product is of high purity, low coefficient of thermal expansion, low stress, high moisture resistance, low-level radioactive and other fine features. And has the following features: low coefficient of linear expansion; good electromagnetic radiation; resistance to chemical corrosion stable chemical properties; reasonable and orderly, controllable particle size distribution. Mainly used in electronic packaging, casting, high-grade electrical insulation, paint, silicone rubber and other industries. Fused silica powder advantages: 1. Very low coefficient of expansion, low viscosity and high fluidity, high added amount or filling amount, which can achieve good dimensional stability and reduced warping; 2. Provide better MSL performance, in line with the green flame retardant formulation EMC requirements; 3. a very low ion content, with excellent high temperature and humidity storage performance and service life, and reduced failure packaged products; 4. Low viscosity and high fluidity save process time, improve production efficiency, reduce production costs; 5. High purity, very low dielectric constant (Dk) and consumption factor (Df), can produce high-frequency signals at high speed and low loss applications of composite materials.