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Thermocouples of molybdenum and iridium alloys for more stable vacuum-high temperature performanceThermocouples providing stability and performance reliability in systems involving high temperatures and vacuums by employing a bimetallic thermocouple sensor are described. Each metal of the sensor is selected from a group of metals comprising molybdenum and iridium and alloys containing only those two metals. The molybdenum, iridium thermocouple sensor alloys provide bare metal thermocouple sensors having advantageous vapor pressure compatibility and performance characteristics. The compatibility and physical characteristics of the thermocouple sensor alloys result in improved emf, temperature properties and thermocouple hot junction performance.
Document ID
19790006175
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
Morris, J. F. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 3, 2013
Publication Date
September 5, 1978
Subject Category
Instrumentation And Photography
Report/Patent Number
Patent Application Number: US-PATENT-APPL-SN-853679
Patent Application Number: US-PATENT-APPL-SN-667929
Patent Number: NASA-CASE-LEW-12174-2
Patent Number: US-PATENT-4,111,718
Accession Number
79N14346
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
NASA-CASE-LEW-12174-2|US-PATENT-4,111,718
Patent Application
US-PATENT-APPL-SN-853679|US-PATENT-APPL-SN-667929

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