Abstract
In this paper we present a new approach of surface pretreatment for enhancing diamond nucleation. The copper substrates were fixed inside a plastic cylinder container with diamond powder diluted in water. This container was coupled to a vibration unit moving up and down at ˜300 cycles/min with a stroke of 15 mm. Finally, samples pretreated for 30 min were deposited with diamond. A high nucleation density comparable to that on substrate abraded with diamond powder was achieved. This method proved to be more effective than our ultrasonic treatment, keeping the advantages of surface preservation. Being simple and straightforward, this “shaking” pretreatment most fits the cases where a thin interlayer has to be used (like diamond coating on steel) and where the samples have a complex shape.
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Fan, Q.H., Fernandes, A., Pereira, E. et al. A new surface pretreatment approach for enhancing diamond nucleation. Journal of Materials Research 14, 4478–4481 (1999). https://doi.org/10.1557/JMR.1999.0608
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DOI: https://doi.org/10.1557/JMR.1999.0608