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Accession Number:
AD0601267
Title:
MECHANICAL RELIABILITY AND THERMOELECTRICAL STABILITY OF NOBLE-METAL THERMOCOUPLES AT 2600F TEMPERATURE AND DOSE RATES UP TO 10 TO 20 POWER NVT.
Descriptive Note:
Corporate Author:
SYSTEMS ENGINEERING GROUP WRIGHT-PATTERSON AFB OHIO
Report Date:
1964-04-01
Pagination or Media Count:
38.0
Abstract:
Reactor tests during the test program demonstrated that the following were accomplished 1Alumina Flame spray-coating of sheath-type noble-metal thermocouples prevented excessive loss of the noble-metal sheath and sensor wire by vaporization and redeposition on cooler surfaces in reactor tests at operating temperatures of 2500F to 2600F 2The use of an alumina-coated, noble-metal bare-wire thermocouple Span thermocouple employing a controlled, maximum, feasible separation between sensor wire andor an alumina-coated thermocouple constructed of two one-conductor coaxial, sheathed thermoelements Duax thermocouple insured that temperature information, which will not be affected by significant decalibration, can be obtained for a period of 1000 hours at a test temperature of 2600F. Author
Distribution Statement:
APPROVED FOR PUBLIC RELEASE