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

S. Rathod, O.P. Modi, B.K. Prasad, A. Chrysanthou, D. Vallauri, V.K. Deshmukh, A.K. Shah

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65 Citations (Scopus)

Abstract

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.
Original languageEnglish
Pages (from-to)91-98
JournalMaterials Science and Engineering A
Volume502
Issue number1-2
DOIs
Publication statusPublished - 2009

Keywords

  • metal matrix composites (MMCs)
  • in situ Cu-TiC composites
  • microstructure
  • self-propagating high

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