| TRADE NAME | IRON % | PHOSPHORUS % | PARTICLE SIZE | A. D. (g/cm3) | T. D. (g/cm3) | OXYGEN % | MORPHOLOGY |
|---|---|---|---|---|---|---|---|
| IP-25 | BAL | 24-26 | <25 | 2.2-2.6 | 2.8-3.2 | <0.4 | IRREGULAR |
| IP-10 | BAL | 9-11 | <25 | 1.4-1.8 | 2.2-2.6 | <0.4 | IRREGULAR |
| TRADE NAME | IRON % | PHOSPHORUS % | PARTICLE SIZE | A. D. (g/cm3) | T. D. (g/cm3) | OXYGEN % | MORPHOLOGY |
|---|---|---|---|---|---|---|---|
| IP-25 | BAL | 24-26 | <25 | 2.2-2.6 | 2.8-3.2 | <0.4 | IRREGULAR |
| IP-10 | BAL | 9-11 | <25 | 1.4-1.8 | 2.2-2.6 | <0.4 | IRREGULAR |
Phosphorus-containing iron powder is prepared by mixing carbonyl iron powder or whiskers with elemental phosphorus, heating the mixture and comminuting the product obtained to give a powder. The powder of the present invention has a particularly low content of extraneous elements.
Phosphorus-containing iron powder is prepared by mixing carbonyl iron powder or whiskers with elemental phosphorus, heating the mixture and comminuting the product obtained to give a powder. The powder of the present invention has a particularly low content of extraneous elements.
Iron phosphorus powder has several uses in powder metallurgy, including:
| Properties | Iron | Phosphorus |
|---|---|---|
| Molecular Weight | 55.85 | 30.97 |
| Appearance | Gray | Black |
| Melting Point | 1535 °C | 44.15 °C |
| Boiling Point | 2750 °C | 280.5 °C |
| Density | 7.87g/cm3 | 1.82 g/cm3 |
| Solubility in H2O | N/A | N/A |
| Electrical Resistivity | 9.71 microhm-cm @ 20 °C | N/A |
| Electronegativity | 1.8 Paulings | N/A |
| Heat of Vaporization | 84.6 K-Cal/gm atom at 2750 °C | 51.9 kJ-mol-1 |
| Poisson's Ratio | 0.29 | N/A |
| Specific Heat | 0.106 Cal/g/K @ 25 °C | N/A |
| Tensile Strength | N/A | N/A |
| Thermal Conductivity | 0.804 W/cm/K @ 298.2 K | (white) 0.236, (black) 12.1 W·m-1·K-1 |
| Thermal Expansion | (25 °C) 11.8 µm·m-1·K-1 | N/A |
| Vickers Hardness | 608 MPa | N/A |
| Young's Modulus | 211 GPa | N/A |
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