As the electronics industry continues to move toward miniaturization, high integration, and enhanced reliability, advanced ceramic materials have become increasingly important in modern electronic manufacturing. Among these materials, alumina powder plays a critical role due to its excellent thermal conductivity, electrical insulation, mechanical strength, and chemical stability.
With years of expertise in advanced material development, Alfa Chemistry provides premium-quality alumina powder designed to meet the demanding requirements of the electronics industry. Our products are manufactured under strict quality control standards to ensure outstanding purity, consistency, and performance.
Key Properties of Alumina Powder
Alumina powder possesses a unique combination of physical and chemical characteristics that make it an ideal material for electronic applications.
- Excellent Electrical Insulation
Alumina exhibits superior dielectric properties and high electrical resistivity, making it suitable for insulating components in electronic circuits and devices. It helps improve device reliability while reducing electrical losses.
- Outstanding Thermal Conductivity
Efficient heat dissipation is essential in modern electronic systems. Alumina powder provides excellent thermal management performance, helping electronic devices maintain stable operation under high temperatures and demanding conditions.
Electronic components often require materials with strong mechanical durability. Alumina-based ceramics offer high hardness, wear resistance, and structural stability, ensuring long service life and excellent reliability.
- Superior Chemical Stability
Alumina powder demonstrates remarkable resistance to corrosion, oxidation, and harsh chemical environments, making it highly suitable for advanced semiconductor and electronic manufacturing processes.
Applications in the Electronics Industry
Due to its exceptional performance, alumina powder is widely used across various electronic sectors.
- Electronic Ceramic Substrates
Alumina ceramic substrates are extensively utilized in integrated circuits, power modules, and hybrid electronic devices because of their excellent insulation and thermal conductivity properties.
High-purity alumina powder is commonly applied in semiconductor packaging materials, where dimensional stability and heat resistance are critical for device performance and reliability.
- Lithium Battery Separator Coatings
In lithium-ion batteries, alumina-coated separators help improve thermal stability, enhance safety performance, and extend battery lifespan, especially in electric vehicles and energy storage systems.
- LED and Electronic Components
Alumina materials are also used in LED packaging, sensors, resistors, capacitors, and other electronic components that require excellent thermal and electrical performance.
Product Specification
99.9% Alumina Product Specifications
99.99% High-Purity Alumina Product Specifications
| Catalog Number | ACSEM-CM-0046 | ACSEM-CM-0047 | ACSEM-CM-0048 |
| Crystal Phase | α | α | α |
| Purity (wt%) | >99.9% | >99.9% | >99.9% |
| SSA (m2/g) | 9-11.5 | 7-9 | 5-9 |
| PSD (μm) | D10 | ≥0.1 | ≥0.15 | ≥0.3 |
| D50 | 0.2-0.4 | 0.4-0.6 | 0.5-1.0 |
| D90 | ≤1 | ≤2 | ≤2.5 |
| D99 | ≤1.5 | ≤5 | ≤6 |
| Fe (ppm) | ≤50 | ≤50 | ≤100 |
| Na (ppm) | ≤500 | ≤500 | ≤500 |
| Si (ppm) | ≤200 | ≤200 | ≤300 |
| Ca (ppm) | ≤200 | ≤200 | ≤250 |
| Ni (ppm) | ≤10 | ≤10 | ≤10 |
| Cu (ppm) | ≤5 | ≤5 | ≤5 |
| Catalog Number | ACSEM-CM-0049 | ACSEM-CM-0050 |
| Crystal Phase | α | α |
| Purity (wt%) | >99.99% | >99.99% |
| SSA (m2/g) | 17-20 | 8-11 |
| PSD (μm) | D10 | ≥0.1 | ≥0.1 |
| D50 | 0.17-0.20 | 0.2-0.3 |
| D90 | ≤0.5 | ≤0.9 |
| Fe (ppm) | ≤10 | ≤10 |
| Na (ppm) | ≤20 | ≤20 |
| Si (ppm) | ≤40 | ≤40 |
| Ca (ppm) | ≤10 | ≤10 |
| Zn (ppm) | ≤10 | ≤10 |
| Cr (ppm) | ≤10 | ≤10 |
| Ni (ppm) | ≤10 | ≤10 |
| Cu (ppm) | ≤10 | ≤10 |
Why Choose Alfa Chemistry
We can manufacture alumina powders with purity levels ranging from 99.9 wt% to 99.999 wt%, enabling their use in a wide variety of high-end electronic and semiconductor applications. All our products are manufactured under strict quality control standards and advanced production processes to ensure outstanding purity, consistent particle size distribution, excellent thermal stability, and reliable batch-to-batch performance. If you have any needs, please feel free to contact us.
