Low Wear Alumina Ceramic Microbeads
Product Material:Alumina Ceramic
AL2O3 Content(%):≥92
Bulk density(g/cm3): ≥3.6
Hardness(Mohs):9
Dimension(mm):0.5-20
Properties:Low abrasion,High hardness,Corrosion resistance,Impact resistance,Economical and Practical
Description
Low Wear Alumina Ceramic Microbeads refer to high-performance inorganic materials with a diameter of micrometers,the main methods for making alumina microspheres are sol-gel method, spray drying method, microfluidics, etc.They are a kind of economical and practical product with high hardness, low wear, corrosion resistance, impact resistance, wear resistance, stable chemical properties.
Advantages
1. Low Wear Alumina Ceramic Microbeads can also be used as functional fillers for various conductive media, which can improve the strength, hardness, wear resistance, corrosion resistance, chemical stability and weathering resistance of the matrix.
2. Due to the isotropy of alumina spheres, under the action of external stress, stress concentration will not be generated on the matrix, so that the castability, plasticity and fluidity of the matrix are greatly improved, which is convenient for secondary molding of composite materials.
3. Because the shape is spherical, it can overcome the anisotropy of irregular-shaped lamellar reinforcement materials and improve the strength and plasticity of the matrix.
Specification
|
Series |
BMpro-92 |
BMpro-92S |
BMpro-95 |
|
AL2O3(%) |
92±0.5 |
90±0.5 |
95±0.5 |
|
Hardness(Mohs) |
9 |
9 |
9 |
|
Bulk density(g/cm3) |
≥3.6 |
≥3.7 |
≥3.7 |
|
Self wearing rate(g/kg.h) |
≤1.6 |
≤1.3 |
≤1.3 |
|
Dimension |
0.5-20 |
0.5-20 |
0.5-20 |
Preparation method
Since the 1960s, the research on Low Wear Alumina Ceramic Microbeads have become more and more in-depth, and there are many preparation methods, including ball formation using the crystallization principle, ball formation through mechanical forces such as extrusion, friction, collision, etc., and ball formation using principles such as interfacial tension.
Application fields
1. Grinding and polishing fields: With high hardness and wear resistance, it can provide uniform grinding force as a grinding medium, and the spherical structure helps to improve polishing efficiency and quality.
2. Catalyst and carrier fields: With stable chemical properties, it helps to disperse and adhere to catalysts, improve activity and stability.
3. High temperature and refractory materials field: It can be used as an insulating material to reduce heat transfer in high temperature environments.
4.Filling and reinforcing materials field: By adding alumina microspheres, the strength, hardness and wear resistance of composite materials can be improved.
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