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High purity low temperature sintered alumina granulation powder series
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High purity low temperature sintered alumina granulation powder series
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Product Characteristics：
Granulated powder has high purity, high bulk density, good sphericity, uniform particle distribution, good fluidity, easy molding and demoulding by dry pressing, high density of biscuit and strong adhesion.
Excellent low-temperature sintering performance, small crystal nucleus size, low porosity, high porcelain density and low shrinkage after sintering, and excellent structural mechanical properties.
Model parameters:
| Specification | HHC-Z101 | HHC-Z201 | HHC-Z301 | HHC-Z501 | |
| view sth from the outside | white spheroid (math.) | ||||
| Single particle diameter (D₅o)um | 0.175±0.005 | 0.250±0.01 | 0.350±0.01 | 0.480±0.03 | |
| Granulated powder particle size (D₅o)um | 130±20 | ||||
| Bulk density (g/cm³) | 0.8-1.2 | ||||
|
Molding density(g/cm³) (Dry pressure 100MPa on one side) |
2.2 | 2.2 | 2.3 | 2.3 | |
| Purity ≥ 99.99% | Na₂O | ≤10ppm | |||
| Fe₂O₃ | ≤10ppm | ||||
| SiO₂ | ≤50ppm | ||||
| CaO | ≤10ppm | ||||
| Firing temperature (℃) | 1300-1350 | 1350-1400 | 1400-1450 | 1450-1500 | |
| Firing density (g/cm³) | 3.93±0.01 | 3.93±0.01 | 3.94±0.01 | 3.94±0.01 | |
| Loss on ignition (%) | 3.0±1% | ||||
| Line shrinkage (%) | 17±1% | ||||
Application Fields:
1、As an abrasive material, it is used to manufacture various wear-resistant parts, such as sand blasting nozzles, abrasive balls, conveying pipelines, etc. It has excellent wear resistance and impact resistance, which can greatly improve the service life and production efficiency of equipment. It has excellent wear resistance and impact resistance, which can greatly improve the service life and production efficiency of the equipment.
2、Widely used in ceramic crafts, ceramic tiles and other manufacturing.
3、In electronic materials, it can be used to make high purity alumina ceramic substrate. Due to its high purity and good sintering performance, the substrate has excellent electrical insulation, high thermal conductivity and dimensional stability, can provide stable support for electronic components and good heat dissipation performance, widely used in integrated circuits, power modules, LED lighting and other electronic equipment.
4、In the field of catalyst, it can provide high specific surface area, increase the reaction activity, and thus improve the catalytic effect.
5, In the bioceramics, high-purity alumina ceramics have good biocompatibility and biological inertia, good compatibility with human tissues, will not cause immune response and rejection. It can be used to make artificial joints, bones and other implants to help patients restore motor function. Can also be used to make dental restorations, such as crowns, bridges, dental implants and so on.
6, Due to high temperature resistance, high strength, high hardness and other characteristics, can be used to manufacture high-temperature structural components in the aerospace field, such as engine blades, combustion chambers, heat insulation panels.
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