STUDY AND SELECTION OF ALLOYS FOR HIGH TEMPERATURE THERMOCOUPLES
The selection of alloys for a high-temperature thermocouple was done. This thermocouple should work in the air, be stable for a long time at temperatures from 1350 to 1550 deg , and be applicable to short time measurements at about 18OO deg . Thermoelectrodes of pure Rh, of Pt--Rh alloys, and of triple alloys of Pt--Rh--W and Pt--Rh--Re were studiod. The homogenetty of the thermoelectrodes, the stability of their thermoelectrical propentles under various conditlons, and the magnitude of the thermoelectromotive force were determinod. The most stable under the aboy-e mentioned conditions was the Rh thermocouple (80% of Pt and 20% of Rh). This thermocouple is stable enough at l8OO deg , if insulation of corundum capillaries was used. The stability of thermocouples proposed by other authors was checkod. A review of works concerning hlgh temperature thermocouples is given. (tr-auth)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-12-007315
- OSTI ID:
- 4306626
- Journal Information:
- Zhur. Neorg. Khim., Journal Name: Zhur. Neorg. Khim. Vol. Vol: 1, No. 5
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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