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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/5510

Title: Raman spectra of hot-pressed boron suboxide
Authors: Machaka, R
Mwakikunga, BW
Manikandan, E
Derry, TE
Sigalas, I
Keywords: Hot-pressed boron suboxide
Raman spectroscopy
Fluorescence background subtraction
Polymeric materials
Material sciences
Issue Date: 2011
Publisher: VBRI press
Citation: Machaka, R, Mwakikunga, BW et al. 2011. Raman spectra of hot-pressed boron suboxide. Advanced Materials Letters, Vol 2(1), pp 58-64
Series/Report no.: Workflow request;7904
Abstract: Despite hot pressing being the most popular method of consolidating B6O powder, the Raman spectrum of polycrystalline hot-pressed B6O was until now poorly understood. Yet, recent reports have contributed to the understanding of only high-pressure and high-temperature sintered B6O. Using an automated method for subtraction of the fluorescence background from Raman measurements, the first- and second-order Raman spectra of B6O and their dependence on the wavelength of the excitation line from a green Argon ion (Ar+) laser are reported. The authors' results confirm the existence of observable highly resolved first- and second-order Raman modes measured at ambient conditions using a green Ar+ ion laser as the source of excitation. They also extend their study to present a comparative analysis of their recovered first-order Raman spectra and previously reported first-order Raman spectra other a-rhombohedral boron type based ultra-hard boron-rich ceramic materials. The results show an overall good agreement.
Description: Copyright: 2011 VBRI press.
URI: http://www.amlett.com/journal_March2011_Vol2_Issu1/article/58-64.pdf
Appears in Collections:Polymers and composites
National Centre for nano-structured materials
General science, engineering & technology

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