THE THERMAL EXPANSION OF FIVE TITANIUM CARBIDE CERMETS FROM 68 TO 1800F

Technical Report · Fri Aug 17 04:00:00 EDT 1962

OSTI ID:4013266

Harrington, L C; Rowe, G H

Measurements are preserted of the thermal expansion of five titanium carbide type cermets from 68 to 1800 deg F. These cermets are designated by Kennametal, Inc., as K 138A, K 150A, K 151A, K 152B, and K 162B. They contain from 64 to 80 weight percent titanium carbide, 10 to 30 weight percent metal binder, and 6 to 10 weight percent other carbides. The metal binders are cobalt, nickel, or nickel and molybdenum. An attempt was made to calculate the thermal expansion of each type cermet from the thermal expansions of the constituents. The expansion of the mixture was computed by weighting the expansions of the constituents according to (1) weight percent of the constituents, (2) volume percert of the constituerts, and (3) according to a value developed for mixtures by P. S. Turner. It was found that expansions computed according to volume percent and by Turner's method agreed with measured values within plus or minus 5 percert. The values calculated by weight percent were from 5 to 11 percent higher than the observed values. The thermal expansions of these cermets are compared with the expansions of a group of metals and alloys. (auth)

• Research Organization: Pratt and Whitney Aircraft Div., United Aircraft Corp. Conneticut Aircraft Nuclear Engine Lab., Middletown
• DOE Contract Number: AT(30-1)-2789
• NSA Number: NSA-18-020513
• OSTI ID: 4013266
• Report Number(s): CNLM-4234
• Country of Publication: United States
• Language: English

Related Subjects

ALLOYS
CEMENTS
CERMETS
COBALT
EXPANSION
HIGH TEMPERATURE
METALS
METALS, CERAMICS, AND OTHER MATERIALS
MOLYBDENUM
NICKEL
QUANTITATIVE ANALYSIS
QUANTITY RATIO
TEMPERATURE
TITANIUM CARBIDES
WEIGHT