The coefficient of thermal expansion of a super invar-Ta/sub 16/W/sub 18/O/sub 94/ composite
Journal Article
·
· J. Eng. Mater. Technol.; (United States)
The coefficient of thermal expansion (CTE) of a hot pressed Ta/sub 16/W/sub 18/O/sub 94/ which was produced from Ta/sub 2/O/sub 5/ and WO/sub 3/ powders was found to be -1.52x10/sup -6/K/sup -1/ in the temperature range 180-330 K. Using the Ta/sub 16/W/sub 18/O/sub 94/ and Super Invar powders, 50:50 volume percent metal-ceramic composites were made by the powder metallurgy techniques. When the mixture of constituent powders was hot pressed at 1123 K for 10 minutes, a CTE of 1.1x10/sup -6/K/sup -1/ was obtained in the temperature range 140-420 K.
- Research Organization:
- Lab. for Manufacturing and Productivity, Massachusetts Institute of Technology, Cambridge, MA 02139
- OSTI ID:
- 7240794
- Journal Information:
- J. Eng. Mater. Technol.; (United States), Journal Name: J. Eng. Mater. Technol.; (United States) Vol. 108:3; ISSN JEMTA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Calculated powder x-ray diffraction data for three tantalum tungstates. [Ta/sub 22/W/sub 4/O/sub 67/; Ta/sub 2/WO/sub 8/; Ta/sub 16/W/sub 18/O/sub 94/]
Characterization of the thermally contracting tungstates Ta/sub 22/W/sub 4/O/sub 67/, Ta/sub 2/WO/sub 8/, and Ta/sub 16/W/sub 18/O/sub 94/
Crystal structures of U(Ta,W){sub 5}O{sub 16} and U(Ta,W){sub 2}O{sub 8} revealed by high-resolution transmission electron microscopy
Technical Report
·
Sun Oct 31 23:00:00 EST 1976
·
OSTI ID:7326978
Characterization of the thermally contracting tungstates Ta/sub 22/W/sub 4/O/sub 67/, Ta/sub 2/WO/sub 8/, and Ta/sub 16/W/sub 18/O/sub 94/
Journal Article
·
Sat Dec 31 23:00:00 EST 1977
· J. Am. Ceram. Soc.; (United States)
·
OSTI ID:6464027
Crystal structures of U(Ta,W){sub 5}O{sub 16} and U(Ta,W){sub 2}O{sub 8} revealed by high-resolution transmission electron microscopy
Journal Article
·
Wed Mar 31 23:00:00 EST 1999
· Journal of Solid State Chemistry
·
OSTI ID:349927
Related Subjects
36 MATERIALS SCIENCE
360603* -- Materials-- Properties
ALLOYS
CERAMICS
CHALCOGENIDES
COMPOSITE MATERIALS
ELEMENTS
EXPANSION
FABRICATION
HOT PRESSING
INVAR
IRON ALLOYS
IRON BASE ALLOYS
LOW TEMPERATURE
MATERIALS
MATERIALS WORKING
MEDIUM TEMPERATURE
METALLURGY
METALS
NICKEL ALLOYS
OXIDES
OXYGEN COMPOUNDS
POWDER METALLURGY
POWDERS
PRESSING
REFRACTORY METAL COMPOUNDS
TANTALUM COMPOUNDS
TANTALUM OXIDES
THERMAL EXPANSION
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN COMPOUNDS
TUNGSTEN OXIDES
VERY HIGH TEMPERATURE
360603* -- Materials-- Properties
ALLOYS
CERAMICS
CHALCOGENIDES
COMPOSITE MATERIALS
ELEMENTS
EXPANSION
FABRICATION
HOT PRESSING
INVAR
IRON ALLOYS
IRON BASE ALLOYS
LOW TEMPERATURE
MATERIALS
MATERIALS WORKING
MEDIUM TEMPERATURE
METALLURGY
METALS
NICKEL ALLOYS
OXIDES
OXYGEN COMPOUNDS
POWDER METALLURGY
POWDERS
PRESSING
REFRACTORY METAL COMPOUNDS
TANTALUM COMPOUNDS
TANTALUM OXIDES
THERMAL EXPANSION
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN COMPOUNDS
TUNGSTEN OXIDES
VERY HIGH TEMPERATURE