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Among the filling materials of thermal interface materials, spherical alumina powder is widely used because it has good press molding and sintering properties, which is extremely beneficial to the production of high-quality ceramic products. Its particles sprayed on ceramic products can greatly improve surface hardness, corrosion resistance and wear resistance. Thermal conductivity is high due to its spherical shape, which allows for the densest packing, providing more heat conduction channels.
High-purity spherical alumina powder is also widely used in LED lampshades, switch housings, electronic product housings and heat dissipation components of electrical products.
In addition, high-purity spherical alumina powder with 4N purity, 99.99% alumina contents is also a raw material for the production of artificial corundum, artificial ruby and sapphire.
In industrial applications, high purity spherical alumina powder can be used in different areas such as aerospace industry, automotive industry, consumer goods processing, casting/die casting, semiconductor industry, etc.
| Ceramic material / 材质 | Alumina | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Color / 颜色 | white | white | ivory | ivory | ivory | ivory | black | ivory | white | ivory | ||||||||||||||||||||||||||||||||||||||||||
| Content / 含量 | % | 99.99 | 99.9 | 99.5 | 99.5 | 99.5 | 99.5 | 95 | 96 | 96 | 96 | |||||||||||||||||||||||||||||||||||||||||
| Property / 属性 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Bulk density / 松装密度 | g/cm3 | 1.2 | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 | 1.2 | 1.1 | 1.1 | 1.1 | |||||||||||||||||||||||||||||||||||||||||
| Green density / 生坯密度 | g/cm3 | 2.4 | 2.4 | 2.4 | 2.3 | 2.4 | 2.4 | 2.3 | 2.3 | 2.2 | 2.2 | |||||||||||||||||||||||||||||||||||||||||
| Fired density / 烧结密度 | g/cm3 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.6 | 3.8 | 3.7 | |||||||||||||||||||||||||||||||||||||||||
| BET Specific Surface area / 比表面积 | m2/g | 4.6 | ー | 3.8 | 5.9 | 5.9 | 5.9 | ー | ー | ー | ー | |||||||||||||||||||||||||||||||||||||||||
| Fineness / 细度 | D50=μm | 0.5 | 0.5 | 0.9 | 0.7 | 0.7 | 0.7 | 0.7 | 3.0 | 1.1 | 0.7 | |||||||||||||||||||||||||||||||||||||||||
| Water absorption / 吸水率 | % | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||||||||||||||||||||||||||||||||||||||
| Flexural strength / 抗弯强度 | Mpa | 500 | 380 | 450 | 450 | 420 | 480 | 300 | 300 | 300 | 350 | |||||||||||||||||||||||||||||||||||||||||
| Shrinking percentage / 收缩率 | % | 16.2 | 16.4 | 16.5 | 17.2 | 16.8 | 16.8 | 17.5 | 15.8 | 18.6 | 18.1 | |||||||||||||||||||||||||||||||||||||||||
| Ignition loss / 烧失量 | % | 5.0 | 5.1 | 5.5 | 5.1 | 6.2 | 5.1 | 5.8 | 5.2 | 7.5 | 7.3 | |||||||||||||||||||||||||||||||||||||||||
| Notes / 煅烧条件 | 1550℃ | 1550℃ | 1550℃ | 1550℃ | 1550℃ | 1550℃ | 1300℃ | 1550℃ | 1550℃ | 1400℃ | ||||||||||||||||||||||||||||||||||||||||||
| 3HR | 3HR | 3HR | 3HR | 3HR | 3HR | 3HR | 3HR | 3HR | 3HR | |||||||||||||||||||||||||||||||||||||||||||
Application:
Alumina Ceramic Filters；
Thermal Spray Coating;
Thermal Interface Materials: thermal silica gasket, thermal grease, phase change materials;
Thermal Engineering Plastics: LED lamp cover, switch enclosures, electronic, products shell, heat dissipators for electronics;
Al-based Copper Clad Laminate: high-power LED circuit substrate, power circuit boards, etc.
↙ ↘
Product feature:
1. High strength: Spherical aluminum oxide powder has characteristics such as high hardness, high density, and high melting point. Products have extremely high strength and hardness, and are suitable for manufacturing high-strength and high hardness ceramic products and refractory materials.
2. Good chemical stability: RTP alumina powder is not affected by most chemical corrosion and can withstand corrosive media such as strong acids and alkalis, making it suitable for different processes in chemical production.
3. Versatility: The diversity and processing performance of this material enable it to be applied in various industries, and can produce products of different shapes and sizes, suitable for fields such as electronic materials, building protection, and high-temperature coatings.
Among the filling materials of thermal interface materials, spherical alumina powder is widely used because it has good press molding and sintering properties, which is extremely beneficial to the production of high-quality ceramic products. Its particles sprayed on ceramic products can greatly improve surface hardness, corrosion resistance and wear resistance. Thermal conductivity is high due to its spherical shape, which allows for the densest packing, providing more heat conduction channels.
High-purity spherical alumina powder is also widely used in LED lampshades, switch housings, electronic product housings and heat dissipation components of electrical products.
In addition, high-purity spherical alumina powder with 4N purity, 99.99% alumina contents is also a raw material for the production of artificial corundum, artificial ruby and sapphire.
In industrial applications, high purity spherical alumina powder can be used in different areas such as aerospace industry, automotive industry, consumer goods processing, casting/die casting, semiconductor industry, etc.
| Ceramic material / 材质 | Alumina | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Color / 颜色 | white | white | ivory | ivory | ivory | ivory | black | ivory | white | ivory | ||||||||||||||||||||||||||||||||||||||||||
| Content / 含量 | % | 99.99 | 99.9 | 99.5 | 99.5 | 99.5 | 99.5 | 95 | 96 | 96 | 96 | |||||||||||||||||||||||||||||||||||||||||
| Property / 属性 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Bulk density / 松装密度 | g/cm3 | 1.2 | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 | 1.2 | 1.1 | 1.1 | 1.1 | |||||||||||||||||||||||||||||||||||||||||
| Green density / 生坯密度 | g/cm3 | 2.4 | 2.4 | 2.4 | 2.3 | 2.4 | 2.4 | 2.3 | 2.3 | 2.2 | 2.2 | |||||||||||||||||||||||||||||||||||||||||
| Fired density / 烧结密度 | g/cm3 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.6 | 3.8 | 3.7 | |||||||||||||||||||||||||||||||||||||||||
| BET Specific Surface area / 比表面积 | m2/g | 4.6 | ー | 3.8 | 5.9 | 5.9 | 5.9 | ー | ー | ー | ー | |||||||||||||||||||||||||||||||||||||||||
| Fineness / 细度 | D50=μm | 0.5 | 0.5 | 0.9 | 0.7 | 0.7 | 0.7 | 0.7 | 3.0 | 1.1 | 0.7 | |||||||||||||||||||||||||||||||||||||||||
| Water absorption / 吸水率 | % | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||||||||||||||||||||||||||||||||||||||
| Flexural strength / 抗弯强度 | Mpa | 500 | 380 | 450 | 450 | 420 | 480 | 300 | 300 | 300 | 350 | |||||||||||||||||||||||||||||||||||||||||
| Shrinking percentage / 收缩率 | % | 16.2 | 16.4 | 16.5 | 17.2 | 16.8 | 16.8 | 17.5 | 15.8 | 18.6 | 18.1 | |||||||||||||||||||||||||||||||||||||||||
| Ignition loss / 烧失量 | % | 5.0 | 5.1 | 5.5 | 5.1 | 6.2 | 5.1 | 5.8 | 5.2 | 7.5 | 7.3 | |||||||||||||||||||||||||||||||||||||||||
| Notes / 煅烧条件 | 1550℃ | 1550℃ | 1550℃ | 1550℃ | 1550℃ | 1550℃ | 1300℃ | 1550℃ | 1550℃ | 1400℃ | ||||||||||||||||||||||||||||||||||||||||||
| 3HR | 3HR | 3HR | 3HR | 3HR | 3HR | 3HR | 3HR | 3HR | 3HR | |||||||||||||||||||||||||||||||||||||||||||
Application:
Alumina Ceramic Filters；
Thermal Spray Coating;
Thermal Interface Materials: thermal silica gasket, thermal grease, phase change materials;
Thermal Engineering Plastics: LED lamp cover, switch enclosures, electronic, products shell, heat dissipators for electronics;
Al-based Copper Clad Laminate: high-power LED circuit substrate, power circuit boards, etc.
↙ ↘
Product feature:
1. High strength: Spherical aluminum oxide powder has characteristics such as high hardness, high density, and high melting point. Products have extremely high strength and hardness, and are suitable for manufacturing high-strength and high hardness ceramic products and refractory materials.
2. Good chemical stability: RTP alumina powder is not affected by most chemical corrosion and can withstand corrosive media such as strong acids and alkalis, making it suitable for different processes in chemical production.
3. Versatility: The diversity and processing performance of this material enable it to be applied in various industries, and can produce products of different shapes and sizes, suitable for fields such as electronic materials, building protection, and high-temperature coatings.
