Table 1 Densities of silica polymorphs.

From: Thermal conductivity of glasses: first-principles theory and applications

Structure

ρ (kg/m3)

v-SiO2, 192(D) PBE+D2 (SiO2 281865)

2241.2

v-SiO2, 192(D) GAP (SiO2 281865)

2288.6

v-SiO2, 192(D) BKS (SiO2 281865)

2243.8

v-SiO2, 192(G) GAP (#460)

2188.7

v-SiO2, 1536(G) GAP (this work)

2257.1

v-SiO2, 5184(G) GAP60

2203.6

v-SiO2, 144(D) PBE+D263

2220.6

v-SiO2, 108(D) PBE+D2 (SiO2.158662)

2243.9

v-SiO2, Experiment138

2203 ± 3

v-SiO2, Experiment139

2200 ± 10

α-cristobalite129, PBE+D2

2383.5

α-cristobalite, Experiment140

2326 ± 12

α-quartz130, PBE+D2

2641.9

α-quartz, Experiment141

2650

  1. Comparison between theoretical and experimental densities ρ for the various silica polymorphs analyzed.
Back to article page