Fivefold Twin Center in CVD Diamond Film

Yuan Sheng Huang; Cheng Ping Luo; Wan Qi Qiu; Hong Wei Liu

doi:10.4028/www.scientific.net/MSF.663-665.1004

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HomeMaterials Science ForumMaterials Science Forum Vols. 663-665Fivefold Twin Center in CVD Diamond Film

Fivefold Twin Center in CVD Diamond Film

Abstract:

The microstructure and crystallographic characteristics of diamond film deposited with the chemical vapor deposition method was investigated using transmission electron microscopy (TEM). It is found that fivefold twin center does not always behave as growth nuclei of diamond grain. For those behaving as growth nuclei, there are a large amount of defects in every block of fivefold twin. However, for those not behaving as growth nuclei, two blocks of fivefold twin contain large quantities of defects, the other three are nearly clear. High resolution TEM analysis shows stacking faults coexist with microtwins in the two vast-defects-contained blocks. The effect of the mismatch angle (7.5°) in fivefold twins on microtwins, and the coexistence mechanism of both stacking faults and microtwins are also discussed.

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Materials Science Forum (Volumes 663-665)

Pages:

1004-1007

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https://doi.org/10.4028/www.scientific.net/MSF.663-665.1004

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Online since:

November 2010

Authors:

Yuan Sheng Huang, Cheng Ping Luo, Wan Qi Qiu, Hong Wei Liu

Keywords:

Chemical Vapor Deposition (CVD), Diamond Film, Fivefold Twin, TEM

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