Silica Spherical Powder

Data sheet

Particle Size	1-50 μm, or customized
Density	2.20 g/cm3
Materials	silicon dioxide, SiO2
Melting Piont	1750 ℃
Appearance	White powder
Purity	99%-99.95%

More info

Silica Spherical Powder is produced using irregular-shaped silica powder as raw material through an advanced flame fusion process. This unique spherical structure endows the product with a set of exceptional physical properties, including low specific surface area, excellent flowability, low internal stress, and high apparent density. It effectively reduces the viscosity of composite materials, improves processability, and significantly lowers the coefficient of thermal expansion while minimizing internal stress in applications such as electronic packaging.

Silica Spherical Powder

Silica Spherical Powder Basic Properties

Item	Unit	Typical Value
Appearance	/	White Powder
Particle morphology	/	Spherical
Density	kg/m³	2.20×10³
Mohs hardness	/	6.0
Dielectric constant	/	3.88（1MHz）
Dielectric loss	/	0.0002（1MHz）
Coefficient of linear expansion	1/K	0.5×10^-6
Thermal conductivity	W/K·m	1.1
Refractive index	/	1.45

Silica Spherical Powder Specifications

Item	Parameter	Specifications
Purity	SiO₂content	99.0-99.95%
Ionic Impurities	Na+, Cl-, etc.	Impurities can be controlled to below 1 ppm.
Particle Size Distribution	D50	1-50µm, or customized
Particle Size Distribution	PSD	Adjustable based on standard profiles to meet specific requirements, including multimodal and narrow distributions.
Surface Properties	Specific Surface Area	Controllable range of 0.5-30m²/g.
Surface Properties	Hydrophobicity, Oil Absorption, etc.	Surface modification is available using various functional agents to meet customer requirements.

Silica Spherical Powder SEM

Silica Spherical Powder Key Features

Low thermal expansion coefficient and low thermal conductivity
High purity with low Na⁺ and Cl⁻ impurity content
High sphericity, excellent flowability, high packing density, low specific surface area, and low stress
Outstanding chemical stability, superior thermal performance, and high mechanical strength

Silica Spherical Powder Applications

Epoxy molding compound for reducing the coefficient of thermal expansion and enhancing thermal conductivity.
Chip underfill, utilizing its high flowability to protect solder joints by filling micro-gaps.
High-performance coatings to significantly improve wear and scratch resistance.
Thermal greases and gels serve as a functional filler to boost overall thermal performance.
Catalyst support, employed in various catalytic reactions due to its high surface area and controllable pore size.
Chromatography packing for High-Performance Liquid Chromatography columns to achieve high-resolution separation.
3D printing powder, used as a feedstock in Selective Laser Sintering processes.
High-end cosmetics like foundations and powders provide a silky feel and transparent finish.
Precision ceramic manufacturing acts as a precursor for high-performance structural ceramics.
Pharmaceutical carrier and excipient, improving powder flowability and enabling controlled drug release.

Silica Spherical Powder Packing And Shipping

The Silica Spherical Powder is securely packed in wooden crates or cartons, reinforced with cushioning materials to prevent movement during transit. This packaging approach ensures that the products remain intact and protected throughout the shipping process.

Silica Spherical Powder Packing

Where to Buy Silica Spherical Powder in Bulk?

Heeger Materials Inc., a professional supplier and manufacturer of high-quality Quartz Ceramic products including Silica Spherical Powders, leverages extensive expertise in supply and export to offer competitive prices. We provide customized solutions to meet specific requirements, ensuring exceptional quality and customer satisfaction.

Heeger Materials Inc. was established in 2016 in Colorado, USA. We specialize in premium-grade metals, alloys, ceramics, powders, and other materials catering to research, development, and large-scale industrial production in scientific and industrial sectors.

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