Silicon metal powder
Si Metal Powder for Metallurgy
The production of silicon metal powder typically involves several stages of refining and purification, including: Reduction of high-purity silica with carbon in an electric arc furnace to prod...
DESCRIPTION
The production of silicon metal powder typically involves several stages of refining and purification, including:
- Reduction of high-purity silica with carbon in an electric arc furnace to produce crude silicon metal.
- Purification of the crude silicon metal through several stages of chemical refining and distillation.
- Grinding and milling of the purified silicon metal to produce a fine powder with a controlled particle size distribution.
High purity silicon metal powder is typically supplied in sealed containers to prevent contamination, and its properties can vary depending on the specific manufacturing process used to produce it.
| Chemical Composition (%) | |||
| Si(Min) | Max | ||
| Fe | Al | Ca | |
| 99.7 | 0.1 | 0.1 | 0.01 |
| 99.5 | 0..2 | 0.2 | 0.02 |
| 99.3 | 0.3 | 0.3 | 0.03 |
| 99.3 | 0.4 | 0.1 | 0.1 |
| 99.2 | 0.4 | 0.2 | 0.1 |
| 99.0 | 0.4 | 0.4 | 0.1 |
| 98.5 | 0.5 | 0.5 | 0.3 |
| 97 | 1.3 | 1.0 | 0.3 |
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