Selective encapsulation of the carbides of yttrium and titanium into carbon nanoclusters

Supapan Seraphin, Dan Zhou, Jun Jiao, James C. Withers, Raouf Loutfy

Research output: Contribution to journalArticle

74 Scopus citations

Abstract

Characterization of the arc-discharge deposits at the cathode from anodes containing yttrium oxide and titanium by transmission electron microscopy and x-ray diffraction shows different results with respect to an encapsulation of the metal carbides into carbon clusters. Yttrium carbide is encapsulated into carbon nanoclusters in a crystalline phase. The formation of titanium carbide, on the other hand, preempts the formation of the carbon - carbon bonds necessary to form the carbon cages, so that only titanium carbide clusters are observed. Thermodynamic data support the interpretation of the results.

Original languageEnglish (US)
Pages (from-to)2073-2075
Number of pages3
JournalApplied Physics Letters
Volume63
Issue number15
DOIs
StatePublished - Dec 1 1993

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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