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High Loading Spherical Alumina Thermal Powder
High Loading Spherical Alumina Thermal Powder High Loading Spherical Alumina Thermal Powder

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High Loading Spherical Alumina Thermal Powder

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This product is an electronic-grade high-loading spherical alumina thermal powder, manufactured from high-purity alumina raw materials through advanced processes. It features high sphericity, narrow particle size distribution, and low impurity content, making it ideal for high thermal conductivity composites. It significantly enhances the thermal management performance of thermal greases, thermally conductive plastics, ceramic substrates, and more.
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Product Description:

This product is an electronic-grade high-loading spherical alumina thermal powder, manufactured from high-purity alumina raw materials through advanced processes. It features high sphericity, narrow particle size distribution, and low impurity content, making it ideal for high thermal conductivity composites. It significantly enhances the thermal management performance of thermal greases, thermally conductive plastics, ceramic substrates, and more.


Applications


Thermal Greases/Gels: Improves thermal conductivity and reduces thermal resistance
Thermally Conductive Plastics/Engineering Plastics: Enhances heat dissipation for LED and 5G devices
Ceramic Substrates/Electronic Packaging: Optimizes heat diffusion and improves reliability
Battery Thermal Management Materials: Used in new energy battery cooling systems
High Thermal Conductivity Coatings: Boosts heat dissipation efficiency in coatings


Product Advantages


High Loading Rate: Optimized particle gradation enables >85% filling rate, significantly improving thermal conductivity
High Sphericity (≥95%): Excellent flowability for easy processing and dispersion
Low Impurities (Na/K/Fe ≤50ppm): Suitable for high-reliability electronic packaging
Customizable Particle Size (2-50μm): Meets diverse application requirements
High Thermal Conductivity (30-40 W/(m·K)): Effectively enhances heat dissipation


Packaging & Storage


Packaging: 20kg/bag (moisture-proof aluminum foil bag + carton)
Storage: Keep in a cool, dry place to avoid moisture


Why Choose Our Product?


Strict Quality Control: Complies with electronic-grade material standards
Customizable Particle Size & Surface Modification: Adaptable to various applications
Cost-Effective: Ideal for bulk procurement
Technical Support: Provides formulation optimization recommendations


Target Industries


Electronic Packaging (ICs, LEDs, power devices)
New Energy (EV batteries, energy storage systems)
5G Communications (base station cooling, high-frequency PCBs)
Automotive Electronics (motor control systems, charging piles)

Contact us for customized solutions!


Project

Related indicators

Explain

Purity

A1.03

More than 99%

Impurities

Na,0

Can be as low as below 300ppm

Appearance

0-A1z03 content

Up to 90% or more
Particle Size Distribution D50 Optional within 2um-50um

Di₀0

Can be as low as 10um or less

Particle size distribution Adjustments can be made based on the typical distribution according to the requirements of the palace household, including multi-modal distribution and narrow distribution


Project

Unit

Typical values

Appearance

/

White pink wood

Particle Shaped Ni

/ Spherical

Density

kg/m³ 3.7×103

Mohs Hardness

/ 6-9

Dielectric Constant

Er 9

Dielectric Loss

lgδ 0.0003
Linear expansion coefficient 1/K 0.7x10-6
Thermal conductivity W/Kam 30


+8618168153275
+86-181-6815-3275

CONTACT US

Tel: +86-181-6815-3275
Emai: sales@silic-st.com
WhatsApp: +8618168153275
Add: No. 8-2, Zhenxing South Road, High-tech Development Zone, Donghai County, Jiangsu Province

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