Water corrosion behavior of densified glass. II. Borate glasses

Elastic properties and structural studies on some zinc-borate glasses derived from ultrasonic, FT-IR and X-ray techniques

“…It was reported earlier [28] that in alkali alumino borate glasses, no BO 4 groups would ever be formed since all of the oxygen atoms supplied by the alkali oxide would be used to form AlO 4 groups with a ratio of one-to-one alkali oxide to aluminum oxide. Therefore, insertion of Al 2 O 3 into the sodium diborate glass composition NaB (as the ratio [Na 2 O]/[B 2 O 3 ] = 0.5 [31][32][33][34]) will cause the decrease in density value by decreasing the amount of Na 2 O associated with boron atoms and consequently the decrease in BO 4 groups (i.e. the decrease in dimentionality of the network structure) [10].…”

Structural and acoustical studies of lead sodium borate glasses

“…In high-sodium borate glasses (between 20 and 30 mol% of Na 2 O), tetraborate groups are partially rearranged, and one Na 2 O forms two diborate units at the expense of a tetraborate unit, with BO 4 /(BO 3 + BO 4 ) = 0.5. As a result, one Na 2 O forms two BO 4 units, which makes the network structure three-dimensional [16][17][18][19].…”

Synthesis and characterization of potassium hexatitanate using boric acid as the flux

“…However, borate glasses are well known to have high water solubility, with the dissolution process being controlled by the hydrolysis reaction of the borate network [14,17,18]. In this sense, after dissolution treatment, the glassy phase (borate) was removed and the crystals were liberated.…”