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Silicon Nitride (Si3N4) Thermocouple Protection Sheaths
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Silicon nitride is a high-tech ceramic material with excellent resistance to thermal shock, mechanical impact, corrosion and chemical addition. The silicon nitride material in the liquid aluminum melt allows the measurement of heat with high precision thanks to its long life and high thermal conduction thanks to its nonadhesiveness.
Silicon nitride is a high-tech ceramic material with excellent resistance to thermal shock, mechanical impact, corrosion and chemical addition. The silicon nitride material in the liquid aluminum melt allows the measurement of heat with high precision thanks to its long life and high thermal conduction thanks to its nonadhesiveness.
| MATERIALS | With FLUX |
| Cast Iron | 2 days – 1 week |
| Old Ceremics | 2 weeks – 1 month |
| Si3N4 | 6 months – 1 year |
| Density | 3,2 gr/cm3 |
| Porosity | 0 % |
| Thermal Conductivity | 31 W/m.K |
| Fracture Toughness | 7 MPa m½ |
| Hardness Hv | 1450 Kg/mm2 |
| Heat Shock Resistance ∆T | ˃ 750 °C |
| Metal | Temperature °C |
| Al | 800 |
| Mg | 750 |
| Cu | 1.150 |
| Zn | 550 |
| Sn | 300 |
| Pb | 400 |
