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| COMPLETI-RISCALDATORI CERAMICI - TECHNICAL DATA |
Ceramic Heaters - Technical Properties
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high-temperature-pressed
Si3N4 |
sintered
AlN |
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Maximum temperature |
°C |
1000 |
1000 |
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Thermal conductivity |
W/mK |
30 |
120 |
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resistance to temperature shocks DT |
°K |
580 |
400 |
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Grade of emission (1100 °C) [ e ] |
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0,96 |
0,90 |
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Bending resistance |
MPa |
400 |
200 |
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Pressure resistance |
MPa |
3000 |
1200 |
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Heat extension coefficient |
10-6K-1 |
3 |
5 |
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Porosity |
% |
0 |
2 |
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Voltage |
V |
6 - 36 / 230 / 400 |
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Specific resistor |
W cm |
5 10-3 ... 5 10-1 |
5 10-3 ... 2 10-1 |
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Isolation resistor |
W cm |
109 |
109 |
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Surface stress |
W/cm2 |
70 |
100 |
Radiation Emission
Homogenious ceramic heating elements are long-wave radiators with an emission spectrum of 6 to 10 microns. Radiation factor is over 0,9.
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