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Etch-delineation of defects in diamond by exposure to an oxidizing flame

Published online by Cambridge University Press:  31 January 2011

D.P. Malta ,
J.B. Posthill ,
R.A. Rudder ,
G.C. Hudson  and
R.J. Markunas
D.P. Malta
Affiliation:
Research Triangle Institute, Research Triangle Park, North Carolina 27709-2194
J.B. Posthill
Affiliation:
Research Triangle Institute, Research Triangle Park, North Carolina 27709-2194
R.A. Rudder
Affiliation:
Research Triangle Institute, Research Triangle Park, North Carolina 27709-2194
G.C. Hudson
Affiliation:
Research Triangle Institute, Research Triangle Park, North Carolina 27709-2194
R.J. Markunas
Affiliation:
Research Triangle Institute, Research Triangle Park, North Carolina 27709-2194
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Abstract

An experimental study of the etching properties of defects in diamond using propane flame exposure in air is presented. Both natural diamond crystals and polycrystalline diamond films were exposed to a flame for an optimum time of 3–4 s. This process topographically delineates defects in diamond via an accelerated etch rate at defect sites. Using transmission electron microscopy (TEM) to determine the exact nature and density of defects present in the diamond, we have found a direct correlation between topographical delineation observed by scanning electron microscopy (SEM) and the defect structure observed by TEM.

Type
Rapid Communications
Information
Journal of Materials Research , Volume 8 , Issue 6 , June 1993 , pp. 1217 - 1219
Copyright
Copyright © Materials Research Society 1993

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References

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