Synthesis of titanium carbide/chromium carbide multilayers by the co-evaporation of multiple ingots by electron beam physical vapor deposition

Douglas E. Wolfe, Jogender Singh, Krishnan Narasimhan

Research output: Contribution to journalArticle

49 Scopus citations

Abstract

Titanium carbide and chromium carbide multilayer coatings with varying individual layer thicknesses were synthesized by the co-evaporation of titanium, chromium, and carbon (through tungsten) ingots by electron beam-physical vapor deposition. The adhesion of the multilayer coatings was found to be geater than 50 N. The hardness of the titanium carbide/chromium carbide multilayer coatings was found to increase from 1302 VHN0.050 to 2052 VHN0.050 by decreasing the thickness of the individual layer from 1.2 to C.1 μ. In addition, the average grain diameter was also found to decrease from 3.315 to 0.356 μ by decreasing the thickness of the individual layers. The fracture toughness of the TiC/CrC multilayer coatings decreased from 4.179 to 1.411 MPa-m1/2 with decreasing layer thickness. Lastly, the amount of compressive stress in both the TiC and CrC layers within the multilayer coating was found to decrease with decreasing individual layer thickness. The samples were characterized by various techniques including Vicker's hardness, X-ray diffraction, scanning electron microscopy, scratch testing and fracture toughness, with the results being presented.

Original languageEnglish (US)
Pages (from-to)206-218
Number of pages13
JournalSurface and Coatings Technology
Volume160
Issue number2-3
DOIs
StatePublished - Oct 22 2002

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Synthesis of titanium carbide/chromium carbide multilayers by the co-evaporation of multiple ingots by electron beam physical vapor deposition'. Together they form a unique fingerprint.

  • Cite this