Figure 7
From: Densification in transparent SiO2 glasses prepared by spark plasma sintering
Micro-Raman spectra of SPS-SiO2 glass recorded with HH polarisation. (a) Micro-Raman spectra of SPS-SiO2 glass prepared at 6 MPa, 1400 °C along with that of SiO2 glass. The inset shows the photograph of the SPS-SiO2 glass marked with the measurement positions. Enlarged Raman spectra showing the (b) boson peak, (c) D1 peak, and (d) D2 peak.
