Thermal-Conductivity Measurements of Tungsten-Fiber-Reinforced Superalloy Composites Using a Thermal-Conductivity Comparator

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Abstract:

The thermal conductivity TC of tungsten- fiber-reinforced superalloys was determined for two composite systems by using a thermal conductivity standard from the National Bureau of Standards and a comparator and technique developed for that purpose. The results were compared with TC data for the nickel-base alloy MAR-M2OO. The technique lends itself to applications involving thin specimens, such as thin-walled turbine blades. The TCs of the composite systems were considerably higher in both the longitudinal and transverse directions than that of the monolithic superalloys used as the matrices.

Author(s):
Westfall, Leonard J. ; Winsa, Edward A.
Author Organization(s):
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION CLEVELAND OH LEWIS RESEARCH CENTER
Pagination:
0023

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
E-991-, NASA-TP-1445
Monitor Series:
TP-1445, NASA
 Subject Terms
Joint Capability Areas:
JCA_1.2.7_Experimentation; JCA_6_Net Centric
Modernization Areas:
Directed Energy; Microelectronics
Communities of Interest:
Advanced Electronics
Descriptor(s):
*TURBINE BLADES, *THERMAL CONDUCTIVITY, *TUNGSTEN, *SUPERALLOYS, *FIBER REINFORCEMENT, MEASUREMENT, ORIENTATION(DIRECTION), STANDARDS, THINNESS, MONOLITHIC STRUCTURES(ELECTRONICS), THERMAL RADIATION, TRANSVERSE, THIN WALLS
Field(s)/Group(s):
Laminates and Composite Materials, Properties of Metals and Alloys, Hydraulic and Pneumatic Equipment, Thermodynamics
Keyword(s):
AMPTICAN COLLECTION
Report Date:
1979 Jul 01
Creation Date:
2000 Aug 09