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E-Powders
Saint-Gobain Surface Conditioning's E-Powders are calcined aluminum oxide powders offering proven performance in a variety of demanding abrasive, thermal and structural applications.
Originally designed as functional filler in magnetic media for continuous cleaning of magnetic heads with reduced dropout, our E-Powders are also ideal for use in applications ranging from automotive polishing to semiconductor CMP.
Available in a wide selection of shapes and sizes, Saint-Gobain alumina E-powders feature controlled size distributions and high purity levels for optimal performance.
E266, E300, E330, E390, E440, E500, E600
Saint-Gobain Surface Conditioning's sub-micron E-Powders are monocrystalline calcined aluminum oxide powders (99.5%+ purity) featuring a plate-like elongated shape in sizes down to 0.32um.
E700
Saint-Gobain Surface Conditioning's E700 is an ultrafine sub-micron polycrystalline alumina that leverages proprietary processing technology to produce high-purity (99.7%+), ultrafine spherically shaped particles with a crystal size of 150 to 250 nanometers.
- Sub-micron size control
- Wide selection of particle size distribution
- High purity
| Physical Characteristics E266, E300, E330, E390, E440, E500, E600 |
|||
|---|---|---|---|
| Crystal form | Monocrystalline alpha alumina | ||
| Hardness | Knoops-2000, Mohs-9 | ||
| pH | 8.0 - 9.5 | ||
| Specific gravity* | 3.95 /gm/cc | ||
| *Apparatus specific gravity 3.6 – 3.9 by Gas Pycnometer | |||
| Typical Chemical Characteristics | |||||||
|---|---|---|---|---|---|---|---|
| Product | Al2O3 | NaO2 | Fe2O3 | SiO2 | CaO | MgO | TiO2 |
| E266 E300 E330 E440 |
99.6 |
0.25 |
0.03 |
0.03 |
<0.03 |
<0.01 |
<0.01 |
| E390 E500 E600 |
99.8 |
0.10 |
0.03 |
0.06 |
<0.02 |
<0.03 |
<0.02 |
| Physical Characteristics E700 | |||
|---|---|---|---|
| Crystal form | Polycrystalline alpha alumina | ||
| Hardness | Knoops-2000, Mohs-9 | ||
| Ultimate crystal size | 150 – 250 nanometers– | ||
| pH | 7.0 – 9.0 | ||
| Specific gravity* | 3.95 /gm/cc | ||
| *Apparatus specific gravity 3.6 – 3.9 by Gas Pycnometer | |||
| Typical Chemical Characteristics E700 | |||||||
|---|---|---|---|---|---|---|---|
| Bulk Chemistry By ICP, percent | |||||||
| Al2O3 | NaO2 | Fe2O3 | SiO2 | CaO | MgO | TiO2 | Others* |
| >99.7 | <0.03 | <0.02 | <0.10 | <0.01 | <0.01 | <0.15 | <0.01 |
| Surface Chemistry By ICP, ppm | |||||||
| Na | Fe | Si | Ca | Mg | Ti | Others* | |
| <10 | <90 | <40 | <20 | <25 | <180 | <10 | |
| * Cadmium, Chromium, Cobalt, Copper, Manganese, Nickel, Zinc | |||||||
| Product Reference | ||
|---|---|---|
| Alumina E-Powder | Product Code | D50% |
| E266 | 7987 | 1.75 |
| E300 | 7989 | 0.90 |
| E330 | 7988 | 0.70 |
| E390 | 7985 | 0.44 |
| E490 | 7986 | 0.43 |
| E440 | 7983 | 0.42 |
| E500 | 7990 | 0.38 |
| E600 | 7991 | 0.32 |
| E700 | 7992 | 0.20 |
