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Morphological variations in flame-deposited diamond

Published online by Cambridge University Press:  03 March 2011

E.A. Frey ,
A. Tamhane ,
J.H.D. Rebello ,
S.A. Dregia  and
V.V. Subramaniam
E.A. Frey
Affiliation:
Department of Mechanical Engineering, The Ohio State University, Columbus, Ohio 43210
A. Tamhane
Affiliation:
Department of Materials Science and Engineering, The Ohio State University, Columbus, Ohio 43210
J.H.D. Rebello
Affiliation:
Department of Mechanical Engineering, The Ohio State University, Columbus, Ohio 43210
S.A. Dregia
Affiliation:
Department of Materials Science and Engineering, The Ohio State University, Columbus, Ohio 43210
V.V. Subramaniam
Affiliation:
Department of Mechanical Engineering, The Ohio State University, Columbus, Ohio 43210
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Abstract

An oxy-acetylene flame, impinging vertically upward on an Si(001) substrate, is systematically examined for morphological variations in the resulting diamond deposits. The flame is operated under near neutral (O2/C2H2 ratio near 1.0) conditions in the unconfined, open atmosphere. Singly twinned crystal morphologies in addition to the usual (001) faceted structures are observed and reported for the first time. Similar morphological variations are observed along the radial as well as the axial (vertical) coordinate directions in the flame. Large changes in morphology are observed for changes in vertical position as small as 50 μm.

Type
Articles
Information
Journal of Materials Research , Volume 9 , Issue 3 , March 1994 , pp. 625 - 630
Copyright
Copyright © Materials Research Society 1994

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References

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