AN ADVANCED HIGH TEMPERATURE THERMOCOUPLE FOR USE ON AEROSPACE VEHICLES.

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Abstract:

Thermocouple probes were fabricated using both WW-26Re and W-5ReW-26Re thermoelectric elements encased in 18 inch diameter W-26Re alloy sheaths. The probes were internally insulated with high purity thoria double bore tubing. Graded thoria-tungsten coatings were plasma sprayed externally on the sheaths for oxidation protection. Performance characteristics of these probes in thermal, oxidative and vibration environments were investigated. Results of tests demonstrated probes were capable of reliable service above 4500 F. Additional unsheathed WW-26Re and W-5ReW-26Re thermoelectric systems were evaluated with respect to sensitivity, stability, and e.m.f. output versus temperature up to 5200 F. Author

Author(s):
Gross, Peter M. ; Dohr, Donald R. ; Drewes, Raymond G. ; Luedeman, Robert T.
Author Organization(s):
WESTON INSTRUMENTS INC NEWARK NJ
Descriptive Note:
Final rept. Feb 64-Nov 65,
Pagination:
0051

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
AFFDL-TR-66-24
Contract/Grant Number(s):
AF 33(615)-1278
Task Number(s):
146907
Project Number(s):
AF-1469
Monitor Series:
TR-66-24
 Subject Terms
Communities of Interest:
Air Platforms
Descriptor(s):
*THERMOCOUPLES, HIGH TEMPERATURE, AEROSPACE CRAFT, TUNGSTEN ALLOYS, RHENIUM ALLOYS, THORIUM COMPOUNDS, OXIDES, PIPES, PERFORMANCE(ENGINEERING), CORROSION RESISTANCE, VIBRATION, TEMPERATURE, RELIABILITY, SENSITIVITY, STABILITY, VOLTAGE, THERMAL INSULATION, CONFIGURATIONS, MANUFACTURING, REFRACTORY METAL ALLOYS, RESPONSE, ACCELERATION, RESONANT FREQUENCY, COATINGS, DUCTILITY, ENVIRONMENTAL TESTS
Field(s)/Group(s):
Test Facilities, Equipment and Methods, Unmanned Spacecraft
Report Date:
1966 May 01