Characterization and Use of Nanostructured Tools
Chemical vapor deposited diamond films have many industrial applications but are assuming increasing importance in the area of microfabrication, most notably in the development of diamond-coated micro-tools especially for milling and turning. For these applications the control of structure and morphology is of critical importance. The crystallite size, orientation, surface roughness, and the degree of sp3 character have a profound effect on the machining properties of the films deposited. In this chapter experimental results are presented on the effects of nitrogen doping on the surface morphology, crystallite size, and wear of micro-tools. The sp3 character optimises at 200 ppm of nitrogen and above this value the surface becomes much smoother and crystal sizes decrease considerably.
KeywordsRake Angle Diamond Film Rake Face Maximum Tensile Stress Force Ratio
The author acknowledges permission to reproduce the chapter from the following publications: ?Machining with Nanomaterials?, Edited by M. J. Jackson and J. S. Morrell, Chapter 10, ?Manufacture and Development of Nanostructured Diamond Tools? by M. J. Jackson, W. Ahmed, and J. S. Morrell pp. 325?360, re-printed with kind permission from Springer Science+Business Media B.V. (Permission Received February 22, 2012), and ?Characterization from N-doped polycrystalline diamond films deposition to micro tools?, by M. J. Jackson and W. Ahmed, Journal of Materials Engineering and Performance, Vol. 14 (5), 2005, pp. 654?665 (Springer License# 2944340724659?Issued 8th July 2012).
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