Details of Grant 

EPSRC Reference:	GR/L16774/01
Title:	PREPARATION, CHARACTERISATION AND TRIBOLOGICAL PROPERTIES OF CARBON NITRIDE
Principal Investigator:	Milne, Professor WI
Other Investigators:	Field, Professor J Robertson, Professor J Hutchings, Professor I Evetts, Professor J Brown, Professor M
Researcher Co-Investigators:
Project Partners:	Cambridge University Hospitals Trust Debeers Diamond Res Labs
Department:	Engineering
Organisation:	University of Cambridge
Scheme:	Standard Research (Pre-FEC)
Starts:	23 September 1996	Ends:	22 June 1999	Value (£):	225,007
EPSRC Research Topic Classifications:	Materials Synthesis & Growth
EPSRC Industrial Sector Classifications:	Construction Healthcare
Related Grants:
Panel History:
Summary on Grant Application Form
C3N4 is predicted to be a very hard solid, with a hardness similar to diamond. Carbon nitride films will be deposited by a combined vacuum arc/plasma beam source apparatus and by reactive sputtering. These techniques allow a wide range of control of the ion fluxes and ion energies to create the possible C3N4 phase and to engineer the bonding in amorphous Cnx phases. The sp3/sp2 binding ratio in the resulting films will be characterised by EELS and correlated to the measured mechanical properties. The films prepared by sputtering are amorphous and possess a unusually high elastic recovery and have potential as a low friction material for coating magnetic hard discs, biomedical implants and as a buffer layer for CVD diamond films. A detailed study of the mechanical, wear, friction and haemocompatibility properties of the films will be carried out as a function of deposition conditions.
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Organisation Website:	http://www.cam.ac.uk