7-11 July 2014
Africa/Johannesburg timezone
<a href="http://events.saip.org.za/internalPage.py?pageId=16&confId=34"><font color=#0000ff>SAIP2014 Proceedings published on 17 April 2015</font></a>

A review on Effect of Ion Implantation on Hexagonal Boron Nitride

8 Jul 2014, 17:10
1h 50m
D Ring ground level

D Ring ground level

Board: F.409
Poster Presentation Track F - Applied Physics Poster1

Speaker

Prof. Trevor Derry (University of the Witwatersrand)

Main supervisor (name and email)<br>and his / her institution

Prof. Trevor E. Derry
Trevor.Derry@wits.ac.za
University of the Witwatersrand

Level for award<br>&nbsp;(Hons, MSc, <br> &nbsp; PhD)?

PhD

Abstract content <br> &nbsp; (Max 300 words)<br><a href="http://events.saip.org.za/getFile.py/access?resId=0&materialId=0&confId=34" target="_blank">Formatting &<br>Special chars</a>

The extreme properties of cubic BN (c-BN), similar to or even superior to diamond, have led to a great deal of research on techniques for its synthesis. The study herein focuses on the synthesis of c-BN from the hexagonal phase (h-BN) by radiation effect using the ion implantation process. The effect of varying implantation parameters including the ion mass, the ion fluence (1×1014 - 1×1015 ions/cm2), the implantation energy (30 - 150 keV) and implantation temperature, with respect to the end-products are investigated. The presence of the c-BN phase is inferred using glancing incidence XRD (GIXRD) at glancing angles 0.01 ≤ ω ≤ 0.5o and Scanning Transmission Electron Microscopy (STEM). The GIXRD pattern after implantation exhibited c-BN and r-BN. These diffraction peaks were determined to be dependent on the incident glancing angle’s penetration depth for the X-rays, which corresponded to the penetration depth of the different ions in h-BN from simulations. Transmission Electron Microscopy showed high density regions in h-BN after implantation with HRTEM lattice fringes with lattice parameter of the c-BN in the implanted region.

Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?

Yes

Apply to be<br> considered for a student <br> &nbsp; award (Yes / No)?

Yes

Primary author

Ms Emily Aradi (University of the Witwatersrand)

Co-authors

Prof. Basil Julies (University of the Western Cape) Dr Daniel Wamwangi (University of the Witwatersrand) Prof. David Billing (University of the Witwatersrand) Dr Shunmugam Ramsamy Naidoo (University of the Witwatersrand) Prof. Trevor Derry (University of the Witwatersrand)

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