CAS 302-74-5 Calcined Aluminum Oxide , 99.5% hite Alumina Powder
Calcined Alumina Powder 99.5% For Spark Plugs, Tap Washers, Abrasion Resistant Tiles, And Cutting Tools
1. Calcined Alumina Powder Introduction
Calcined Alumina is a commercial Alumina or Aluminum Oxide. It is white powder. One of the outstanding characteristics of Calcined Alumina is its hardness which is 9 on mohs scale. There is board industrial field of applications for this type of alumina and number of distinctive grade are produced to meet various needs.
2. Calcined Alumina Powder Specifications
| Type | Median sodium | Low sodium | ||||||
| Brand | EK-4M | EK-12M | EK-SF | EK-06L | ||||
| composition% | Guarantee value | Typical value | Guarantee value | Typical value | Guarantee value | Typical value | Guarantee value | Typical value |
| AL2O3 | ≥99 | 99.37 | ≥99 | 99.34 | ≥98.5 | 99.08 | ≥99 | 99.34 |
| SiO2 | ≤0.2 | 0.10 | ≤0.2 | 0.12 | ≤0.2 | 0.10 | ≤0.2 | 0.11 |
| Fe2O3 | ≤0.2 | 0.06 | ≤0.2 | 0.08 | ≤0.2 | 0.13 | ≤0.2 | 0.08 |
| Na2O | ≤0.3 | 0.25 | ≤0.25 | 0.18 | ≤0.25 | 0.13 | ≤0.25 | 0.10 |
| True density g/cm3 | ≥3.95 | 3.96 | ≥3.92 | 3.94 | ≥3.92 | 3.94 | ≥3.92 | 3.95 |
| Median particle diameter D50μm | 3~5 | 3.47 | 0.9~1.5 | 0.93 | 1.5~2.5 | 1.66 | 0.9~1.5 | 1.13 |
| α-AL2O3 inversion ratio % | ≥95 | ≥95 | ≥95 | ≥95 | ||||
| Particle distribution | Unimodal | Unimodal | Bimodal | Bimodal | ||||
| Inspection standard | GB/T3044-89；GB3604-83 | |||||||
3. Calcined Alumina Powder General Advantages
- Good volume stability.
- Unique high sintering activity.
- Good brightness and finishing.
- High conversion rate.
- High Purity 99.5-99.8%
3. Calcined Alumina Powder Characteristics
1. High Hardness
2. High Compression Strength
3. Abrasive / Wear-Resistance and Chemical Inertness
4. High Degree of Refractoriness
5. Superior Electrical Insulating Properties
6. Resistance to Thermal Shock and High Melting Point
4. Calcined Alumina Powder Particle Sizes Distributions
5. Calcined Alumina Powder Applications
1. Polishing
2. Structural Ceramics
3. Technical Ceramics
4. Body and Vehicle Armor
5. Lapping
6. Laminates
7. Coatings
8. Filtration
9. Abrasives and Refractory
10. Milling and Filler
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