Environmentally inert nano-crystalline materials

J. C. Withers, S. Guha, R. Loutfy, T. Lowe, X. Wang, J. Jiao, S. Seraphin

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


A novel process to generate environmentally-inert nano-crystalline materials is discussed here. In this process, nano-crystals of different metals such as Ni, Cu, Al, Ti etc. can be produced in a single processing step with each crystal protected by several carbon (graphite) layers. The technology is an adaptation of the arc technique utilized to produce carbon nano-crystals (Fullerenes) and can be controlled to produce nano-crystals with a variety of coatings including graphite. These nano-crystals are in the 10-50 nm diameter range (typically 30 nm) and of uniform size distribution. These nano-crystals were chemically stable in air and inert to various acids. Further, initial (unoptimized) experiments demonstrated the feasibility of consolidating these coated nano-particles using conventional processing approaches. Novel applications of these nano-crystals such as in the magnetic recording industry are also discussed here.

Original languageEnglish (US)
Pages (from-to)1013-1028
Number of pages16
JournalMaterials and Manufacturing Processes
Issue number6
StatePublished - 1996

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering


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