title: [Raman spectroscopic quantitative analysis of cluster structure of binary alkali silicate glasses].
abstract: A calibration method for Raman spectroscopic quantitative analysis of binary alkaline silicate glasses is proposed. By applying ab initio quantum chemistry simulation, Raman optical activities (ROA) of various cluster units consisting of silicon-oxygen tetrahedra (SiOT) with different number of non-bridging oxygen (NBO) can be obtained. Thus, experimental results could be calibrated in order to reflect and represent directly the true relative density of various silicon-oxygen tetrahedra existing inside the silicate glasses. Cation effect on the intensity of Raman bands was also observed and discussed.
authors.affiliation: School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China. zcwang248@163.com
authors.forename: Zhi-chao
authors.initials: ZC
authors.lastname: Wang
authors.forename: Jing-lin
authors.initials: JL
authors.lastname: You
authors.forename: Yuan-yuan
authors.initials: YY
authors.lastname: Wang
authors.forename: Yu-jing
authors.initials: YJ
authors.lastname: Niu
authors.forename: Su-juan
authors.initials: SJ
authors.lastname: Dai