The crystallization of diabase glass

Crystallisation behaviour and high-temperature stability of stone wool fibres

“…Recently, some studies have been conducted regarding the influence of oxygen partial pressure, 3,13 redox state and amount of iron, [14][15][16][17][18] heat-treatment schedule, 19,20 and chemical aging 21 on the crystallisation behaviour of iron-bearing silicate glasses. However, to our knowledge, the effects of both chemical composition and heat-treatment atmosphere have not yet been investigated in the same study.…”

Sintered material from alkaline basaltic tuffs

“…[22][23][24] The basalt related igneous rocks are classified in two main groups: subalkaline and alkaline; the first group comprises tholeiitic and calcalkaline basalts, whereas the second includes alkaline and alkaline-olivine basalts. 25 As of today, petrurgy uses mainly tholeiitic basalts and diabasic rocks, 1,[18][19][20]26,27 which, due to the higher SiO 2 + Al 2 O 3 percentage, are characterized by a moderate crystallization trend.…”

“…For these reasons, many researchers continue to study the melting and the crystallization behaviour of different igneous rocks and to characterize the obtained materials. [18][19][20][21] Other investigations are related to the possible utilization of some volcanic rocks as sintering promoters or glazes in the traditional ceramic industry. [22][23][24] The basalt related igneous rocks are classified in two main groups: subalkaline and alkaline; the first group comprises tholeiitic and calcalkaline basalts, whereas the second includes alkaline and alkaline-olivine basalts.…”

The effect of initial oxidation state on crystallization of basaltic glass

“…For a given glass composition and Fe 2+ /Fe 3+ ratio, the oxygen content of the environmental atmosphere defines the oxygen potential towards the glass which in turn may affect crystallization. These aspects are therefore in the center of technological interests and research, either looking at the change of surface chemistry (e.g., [3]) or at crystallization behavior as a function of oxidation state [1], by means of thermal analyses and XRD, [11][12][13][14][15].…”