High-Purity White D50 Spherical Alumina Powder with 3.60 g/cm³ Specific Gravity for Thermal Interface Materials
Basic Properties
Place of Origin:
China
Brand Name:
KEGU
Model Number:
Customizable
Trading Properties
Price:
200-500 yuan/kg
Payment Terms:
L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Ability:
2,000 pcs/month
Product Summary
High-Purity Spherical Alumina Powder - White D50 Powder with 3.60 g/cm³ Specific Gravity for Thermal Interface Materials This premium spherical alumina powder features exceptional globularity and high thermal conductivity, manufactured through advanced high-temperature melting technology. With its ...
Product Details
Highlight:
Sphercial Alumina Powder
,D50 Alumina Powder
,Alumina Powder 3.60g/Cm3
Material:
SiC
Composition:SiC:
＞85%
Color:
Black
Density:
≥3.65g/cm3
Max. Service Temp:
1380℃
Flexural Strength:
250MPa
Hardness:
≥84HRA
Water Absorption:
≤0.2%
Abrasion:
< 0.02%
Bending Strength:
≥290MPa
Product Description
High-Purity Spherical Alumina Powder - White D50 Powder with 3.60 g/cm³ Specific Gravity for Thermal Interface Materials
This premium spherical alumina powder features exceptional globularity and high thermal conductivity, manufactured through advanced high-temperature melting technology. With its unique spherical morphology and high α-Al₂O₃ content, it delivers superior performance as a functional filler in thermal interface materials, ceramic composites, and electronic packaging applications.
Technical Specifications
Available Particle Size Distributions
| Type | D50 (μm) | Specific Surface Area (m²/g) |
|---|---|---|
| SA-05 | 5 ± 1 | 0.60 |
| SA-10 | 10 ± 2 | 0.50 |
| SA-20 | 20 ± 3 | 0.40 |
| SA-30 | 30 ± 3 | 0.30 |
| SA-40 | 40 ± 5 | 0.20 |
| SA-70 | 70 ± 6 | 0.12 |
Physical Properties
- Appearance: White free-flowing powder
- Specific Gravity: 3.60 g/cm³
- Melting Point: 2050°C
- Moisture Content: ≤ 0.05%
- Electrical Conductivity: ≤ 10 μS/cm
- pH Value: 7.0 ± 0.5
- α-Al₂O₃ Content: ≥ 90%
- Sphericity Ratio: ≥ 95%
Chemical Composition (All Types)
- Al₂O₃: ≥ 99.0%
- SiO₂: ≤ 0.05%
- Fe₂O₃: ≤ 0.05%
- Na₂O: ≤ 0.02-0.03%
- Other Oxides (K₂O, MgO, CaO): ≤ 0.01-0.02%
Key Performance Characteristics
- High Packing Density: Optimized particle size distribution enables dense packing in polymers and ceramics, resulting in compounds with lower viscosity and improved flow characteristics
- Enhanced Thermal Conductivity: Superior packing efficiency creates effective heat transfer pathways, enabling formulation of high thermal conductivity composites (2-10 W/m*K) that outperform conventional crystalline silica fillers
- Reduced Equipment Wear: Perfect spherical morphology minimizes abrasion to processing equipment, extending service life of mixing, molding, and extrusion machinery
- Excellent Electrical Properties: Low moisture content and electrical conductivity make it suitable for demanding electronic applications
Primary Applications
- Thermal Management Materials: Fillers for thermal grease, phase change materials, thermal pads, heat sink composites, and MC (Metal Core) PCB thermal filling compounds
- Electronic Packaging: Semiconductor encapsulation resins, silicone-based thermal adhesives, and potting compounds for electronic components
- Advanced Ceramics & Composites: Ceramic molding compounds, high-performance refractory materials, and technical ceramic formulations
Competitive Advantages
- Superior Sphericity (>95%) for optimal flow and packing
- High Purity (99% Al₂O₃) for demanding applications
- Controlled Particle Size distributions for specific formulation needs
- Proven Performance in thermal interface materials and electronic composites
Looking to enhance your material's thermal performance? Contact our technical team for product samples and application guidance tailored to your specific requirements.
Miss. Scarlett.S
Deputy Head of Foreign Trade Department
- Email: scarlett.s@kegugroup.com
- Tel: 8616602956098
- WhatsApp: 8613390790728
-
WeChat:
Scarlettseren533
Related Products
-
Silicon Carbide Sealing Rings with 1650°C Max Service Temp, 380MPa Flexural Strength, and Corrosion Resistance
Silicon Carbide (SiC) Sealing Rings Advanced Performance for Demanding Applications Product Overview Our Pressureless Sintered Silicon Carbide Sealing Rings represent the pinnacle of sealing technology, engineered to deliver unmatched performance in extreme operating conditions. Utilizing advanced ... -
Customized Silicon Carbide Ceramic Pipe Burners with 1650°C Max Service Temp, 20% Fuel Reduction, and Thermal Shock Resistance
Customized Silicon Carbide Ceramic Pipe Burners Finned Radiant Tubes ZG Industrial supplies high-performance customized silicon carbide ceramic pipe burners and finned radiant tubes. Engineered for extreme conditions, our Si/SiC composite tubes deliver superior heat transfer, exceptional durability, ... -
Silicon Carbide Sandblasting Nozzle with Superior Wear Resistance, Extended Service Life, and Precision Engineering for Industrial Applications
Silicon Carbide (SiC) Sandblasting Nozzles Superior wear resistance for industrial surface treatment applications Our Silicon Carbide Sandblasting Nozzles are engineered for extreme durability and precision in demanding surface treatment applications. Manufactured through advanced isostatic pressing ... -
NIJ Certified Silicon Carbide Body Armor with Multi-Hit Capability and Lightweight Defense for Ballistic Protection
Silicon Carbide Ceramic Armor: Superior Ballistic Protection Our advanced silicon carbide (SiC) ceramic armor represents the pinnacle of ballistic materials technology, combining exceptional hardness (9.5 Mohs) with significantly reduced weight to deliver unmatched protection for personnel and ...
