High-temperature, irradiation-resistant thermocouple, coaxial thermocouple, and related methods

Patent · Tue Oct 04 00:00:00 EDT 2022

OSTI ID:1986655

Skifton, Richard S.; Daw, Joshua

A coaxial thermocouple includes a wire, an insulation layer surrounding the wire, a sheath surrounding the insulation layer, and an electrical junction formed between the wire and the sheath and at one longitudinal end of the coaxial thermocouple, the electrical junction including a swaged end with an outer diameter of the sheath reducing in diameter along a longitudinal length of the coaxial thermocouple until the sheath contacts the wire within the insulation layer. The wire includes a first material and the sheath includes a second material where the first material includes one of molybdenum (Mo) or niobium (Nb) and the second material includes the other of molybdenum (Mo) or niobium (Nb).

• Research Organization: Idaho National Laboratory (INL), Idaho Falls, ID (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC07-05ID14517
• Assignee: Battelle Energy Alliance, LLC (Idaho Falls, ID)
• Patent Number(s): 11,460,351
• Application Number: 16/690,630
• OSTI ID: 1986655
• Resource Relation: Patent File Date: 11/21/2019
• Country of Publication: United States
• Language: English