Dispersion strengthening platinum/rhodium10-platinum thermocouple wires and production method thereof
A dispersion-strengthened, platinum thermocouple technology, used in thermometers with directly sensitive electrical/magnetic components, measuring heat, using electrical devices, etc., can solve the problem of easy coarsening of platinum electrodes, poor anti-pollution ability, Thermoelectric potential instability and other problems, to achieve the effect of strong anti-pollution corrosion ability, stable thermoelectric potential and strong creep resistance
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[0026] Example 1: Pt90%, Rh10.0%.
[0027] Technical performance: the fracture life when subjected to the same stress at high temperature is the same as that of ordinary platinum and rhodium 10 The couple wire is equivalent; when the reference end temperature is 0℃ for each coil of couple wire, the thermoelectromotive force measured at different test temperatures meets the requirements of GB / T 3772.
Example Embodiment
[0028] Example 2: Pt 89.82%, Rh 9.98%, Zr 0.1%, Y 0.1%.
[0029] Technical performance: the fracture life when subjected to the same stress at high temperature is ordinary platinum and rhodium 10 About 12 times of the double wire; when the temperature of the reference end of each coil of the double wire is 0℃, the thermoelectromotive force measured at different test temperatures meets the requirements of GB / T 3772.
Example Embodiment
[0030] Example 3: Pt 89.64%, Rh 9.96%, Ti 0.2%, Y 0.2%.
[0031] Technical performance: the fracture life when subjected to the same stress at high temperature is ordinary platinum and rhodium 10 About 11 times of the double wire; when the temperature of the reference end of each coil of the double wire is 0℃, the thermoelectromotive force measured at different test temperatures meets the requirements of GB / T 3772.
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