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Overview: Ceramic Beads
Final Advanced Materials supplies three varieties of ceramic beads. These beads are distinguished by their high degree of adaptability to challenging environments and their exceptional strength characteristics. These beads are highly rated in the watchmaking, medical and automobile sectors.
Manufacturing
Ceramic is produced from a chemical composition based upon several oxidized raw materials. The resulting powder is compacted, then moulded by dry pressing. The moulding is then sintered at high temperature to develop its polycrystalline ceramic structure.
Applications of Ceramic Beads
- High-precision and high-speed ball bearings
- Hip replacements
- Valves or relief valves
- Measuring devices
- Reference spheres for three-dimensional measuring machines
- Probes for three-dimensional measuring machines
Benefits of Ceramic Beads
- Exceptional hardness
- Strong resistance to friction and wear
- High elastic modulus
- High chemical, thermal and mechanical resistance
- Strong electrical insulating properties
- Low porosity
Comparative Table
|
Property |
Unit |
Alumina 99.7 % |
Alumina 92 % | Zirconium |
|
Hardness (Vickers, HV5) |
1,600 |
1,300 |
1,250 - 1,300 |
|
|
Density |
g/cm3 |
3.95 ± 0.05 |
3.70 ± 0.05 |
6.20 ± 0.05 |
|
Max. Operating Temperature |
°C |
1,400 |
1,400 |
1,050 |
Our range of Ceramic Beads
99.7 % Alumina Oxide
The 99.7 % alumina oxide beads are very resistant to wear, heat and corrosive environments. They retain good dimensional stability up to 1,000 °C. Alumina resists oxidation and is tolerant to water, salt solutions and many chemicals and acids.
92 % Alumina Oxide
The composition of these spheres differs slightly from that of previous spheres of pure alumina, with a reduced alumina content of 92 %. As a result, these spheres are more cost-effective. This product is also distinguished by increased abrasiveness and reduced thermal output.
Zirconium oxide stabilized with cerium
Zirconium oxide beads can be used 2 to 3 times longer than metal or carbide beads in highly abrasive and corrosive environment. They are also much heavier than alumina oxide beads.
Dimensions
Bulk Denisty according to Diameter
|
Diameter (mm) |
Weight(kg/l) |
||
|
0.40-0.70 |
2.18 ± 0.05 |
2.30 ± 0.05 |
3.75 ± 0.05 |
|
0.70-1.20 |
2.18 ± 0.05 |
2.30 ± 0.05 |
3.75 ± 0.05 |
|
1.20-1.70 |
2.18 ± 0.05 |
2.30 ± 0.05 |
3.85 ± 0.05 |
|
1.70-2.40 |
2.20 ± 0.05 |
2.35 ± 0.05 |
3.85 ± 0.05 |
|
2.40-2.80 |
2.20 ± 0.05 |
2.35 ± 0.05 |
3.95 ± 0.05 |
|
2.80-3.30 |
2.20 ± 0.05 |
2.35 ± 0.05 |
3.95 ± 0.05 |
Beads Available Dimensions
|
Product |
Diameter (mm) with broad fraction size |
Product |
Diameter (mm) with narrow fraction size |
|
99.7 % Alumina Oxide 92 % Alumina Oxide Zirconium oxide stabilized with cerium |
0.4-0.7 |
Zirconium oxide stabilized with cerium |
0.2-0.4 |
|
0.7-1.2 |
0.4-0.6 |
||
|
1.2-1.7 |
0.6-0.8 |
||
|
1.7-2.4 |
0.8-1.0 |
||
|
2.4-2.8 |
1.0-1.2 |
||
|
2.8-3.3 |
1.2-1.4 |
||
|
1.4-1.7 |
|||
|
1.6-2.0 |
|||
|
1.7-2.0 |
|||
|
2.0-2.4 |
Physical variables included in this documentation are provided by way of indication only and do not, under any circumstances, constitute a contractual undertaking. Please contact our technical service if you require any additional information.
FAQs that can help you in this category
Les billes en alumine (Al2O3), avec une masse volumique de 3,9 g/cm³ et une dureté de 17 GPa, sont économiques et adaptées aux broyages standards, notamment pour les charges minérales ou les pigments. Les billes en zircone (ZrO2 stabilisée) présentent une masse volumique plus élevée (6 g/cm³) et une ténacité supérieure (7 MPa·m1/2), ce qui améliore l’efficacité du broyage et réduit le temps de traitement. Elles génèrent aussi moins de contamination et présentent une meilleure résistance à l’usure. Final Advanced Materials recommande la zircone pour les broyages intensifs ou de haute précision, et l’alumine pour des applications plus économiques.