DIAMOND FILM GROWTH ON TI-IMPLANTED GLASSY-CARBON

The growth of diamond thin films on glassy carbon substrates has been investigated as a function of deposition time for different surface tr eatments. Implantation of Ti to a dose of 1.7 X 10(17) cm-2 and abrasi on with diamond powder have both been examined to determine their effe ct on film nucleation and growth. At the shorter deposition times stud ied, diamond nucleation was observed on all test samples with those su bjected to the abrasive pretreatment exhibiting the higher growth rate s. However, the adhesion and uniformity of films on unimplanted glassy carbon were found to deteriorate significantly following deposition r uns of 14 and 21 h duration. This was attributed to a destabilization of the underlying surface caused by plasma erosion.