Observation of two- and three-dimensional magnesium oxide nanostructures formed by thermal treatment of magnesium diboride powder

Kevin L. Klug, Vinayak P Dravid

Research output: Contribution to journalArticlepeer-review

47 Scopus citations

Abstract

A simple thermal treatment has been used to produce a variety of elongated single crystalline magnesium oxide nanostructures. Incipient evaporation of a magnesium diboride starting powder combined with a mixed oxygen/argon process gas provided the constituents for nanostructure growth. Electron diffraction and energy dispersive x-ray spectroscopy confirm the single crystalline nature and chemical composition of the objects, and the atomic surface plane is observed to be of the (001) type. Transmission electron microscopy and scanning electron microscopy reveal several MgO morphologies including linear nanobelts and two- and three-dimensional entities that contain approximately ninety degree angles. Atomic steps are observed on the inner edges of these angles, but are absent from the outer rims. The experimental conditions used to form these nanoscale materials and possible applications are described.

Original languageEnglish (US)
Pages (from-to)1687-1689
Number of pages3
JournalApplied Physics Letters
Volume81
Issue number9
DOIs
StatePublished - Aug 26 2002

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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