Table 1 Nominal compositions (mol%) of the six glasses designed to investigate the influence of Al on aluminoborosilicate glass, glass densities calculated from Fluegel’s model56, and geometric surface area and BET surface area of the powders used in this study. For the rate calculation, the BET surface area was used.

From: On the effect of Al on alumino-borosilicate glass chemical durability

 

SiO2

B2O3

Na2O

Al2O3

Density (g.cm3)

Sgeo 100–125 µm (cm2.g−1)

SBET 100–125 µm (cm2.g−1)

Sgeo 40–100 µm (cm2.g−1)

SBET 40–100 µm (cm2.g−1)

SBNA0

67.8

18

14.2

0

2.42

220

405

354

690

SBNA1

63

18.7

17.3

1

2.46

217

355

348

645

SBNA1bis

60.5

20.1

18.4

1

2.46

217

415

348

720

SBNA3.5

60.5

20.1

15.9

3.5

2.40

222

415

357

715

SBNA4

64.9

17.3

13.7

4.1

2.39

223

435

359

720

SBNA6

66.8

15.9

11.3

6

2.36

226

455

363

780