Cast in situ Cu–TiC composites: Synthesis by SHS route and characterization

The present investigation discusses observations pertaining to the synthesis of Cu-based composites containing TiC particles in the range of 45–50 volume % by self-propagating high temperature synthesis (SHS) process. A composite with 11–13 volume % TiC dispersion was also synthesized through remelt...

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Published inMaterials science & engineering. A, Structural materials : properties, microstructure and processing Vol. 502; no. 1; pp. 91 - 98
Main Authors Rathod, S., Modi, O.P., Prasad, B.K., Chrysanthou, A., Vallauri, D., Deshmukh, V.P., Shah, A.K.
Format Journal Article
LanguageEnglish
Published Kidlington Elsevier B.V 25.02.2009
Elsevier
Subjects
Applied sciences
Casting
Dispersion hardening metals
Exact sciences and technology
Hardness
In situ Cu–TiC composites
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metal matrix composites (MMCs)
Metals. Metallurgy
Microstructure
Powder metallurgy. Composite materials
Production techniques
Self-propagating high temperature synthesis (SHS)
In situ Cu–TiC composites
Casting
Microstructure
Metal matrix composites (MMCs)
Self-propagating high temperature synthesis (SHS)
In situ Cu-TiC composites
Remelting
Metal matrix composite
Transition metal
Self propagating high temperature synthesis
Hardness
Density
Titanium carbide
Composite material
Dispersion strengthened metal
Copper
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Summary:The present investigation discusses observations pertaining to the synthesis of Cu-based composites containing TiC particles in the range of 45–50 volume % by self-propagating high temperature synthesis (SHS) process. A composite with 11–13 volume % TiC dispersion was also synthesized through remelting and dilution. The composites were observed to contain a copper matrix together with a Cu–Ti intermetallic compound, TiC dispersoid particles and partially reacted graphite. The regions showing partially reacted graphite (carbon) became less prominent in the diluted composites. Al addition led to the refinement of TiC particles, higher hardness, reduced density and improved degree of formation and better homogeneity of the distribution of TiC particles. Dilution caused reduced hardness, while the density followed a reverse trend.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0921-5093
1873-4936
DOI:10.1016/j.msea.2008.10.002