Melt-infiltration processing of TiC/Ni{sub 3}Al composites

Journal Article · Wed Oct 01 04:00:00 EDT 1997 · Journal of Materials Research

DOI:https://doi.org/10.1557/JMR.1997.0332· OSTI ID:554336

Plucknett, K P; Becher, P F; Subramanian, R ^[1]

---

1. Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)

A simple melt-infiltration processing route has been developed for the fabrication of TiC/Ni{sub 3}Al ceramic/intermetallic composites, which involves a combination of infiltration and subsequent liquid phase sintering. For Ni{sub 3}Al contents from 8 to 25 vol. {percent}, densities in excess of 98{percent} of theoretical are readily obtained when processing at 1450{degree}C. TiC and Ni{sub 3}Al are the only phases detected in the densified materials. Ni{sub 3}Al ductility is retained after processing, leading to the possibility of ductile phase toughened TiC composites for elevated temperature applications (up to {approximately}1100{degree}C). {copyright} {ital 1997 Materials Research Society.}

• Research Organization: Oak Ridge National Laboratory
• DOE Contract Number: AC05-96OR22464
• OSTI ID: 554336
• Journal Information: Journal of Materials Research, Journal Name: Journal of Materials Research Journal Issue: 10 Vol. 12; ISSN JMREEE; ISSN 0884-2914
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM COMPOUNDS
CERMETS
FABRICATION
INTERMETALLIC COMPOUNDS
MECHANICAL PROPERTIES
NICKEL COMPOUNDS
PHASE STUDIES
TITANIUM CARBIDES