Effects of Annealing on Toughened and Non-Toughened Glass

Abstract

The effect of annealing on toughened and non-toughened glasses that have similar densities and refractive indices is examined with respect to the changes in density and refractive index after annealing. A correlation between the change in refractive index (.:1RI) and the change in density (.:10) is drawn. RESUMEL'effet de recuire des echantillons de verre trempes et non-trempss ayant des densltss et des indices de refraction similaires est etudie. L'emphase est placee sur les changements de leur denslte et de leur indice de refraction apres le recuisage. Une correlation entre le changement de I'indice de refraction (.:1RI) et le changement de la denslte (.:10) est etablie.

A study of the performance and utility of annealing in forensic glass analysis

“…Cassista and Sandercock [15] looked at the correlation between the DRI and the change in density of glass after annealing. As expected they found a high correlation.…”

“…However, it may be desirable in some cases to characterise the glass fragments further. Methods that have been suggested include examination of the surface of the glass to determine whether it is flat or curved [4,5], the examination of the elemental composition [6][7][8][9][10][11][12][13][14], and the examination of the change in refractive index upon annealing [15][16][17][18][19][20][21][22][23].…”

Capabilities of laser ablation—inductively coupled plasma mass spectrometry for (trace) element analysis of car paints for forensic purposes

“…If the pyrolysis and chromatographic conditions remain constant over time, comparison of the chromatograms with reference chromatograms permits the identification of binder types. [12][13][14][15] Especially when combined with mass spectrometry, this technique is also powerful in providing information on additives, organic pigments and impurities. 16 This qualitative information is very useful for discrimination purposes, but it is impossible to obtain quantitative information, which is necessary for databases.…”