Examining the role of nucleating agents within glass-ceramic systems

Microstructural Control of CaO–Al2O3–SiO2 Glass Ceramics by Oxidation and Mixing with Nucleation Agents

“…The discovery of glass ceramics (GCs) 1 promoted research into their properties, which are superior to those of monolithic glass materials. 2 − 20 GCs are composed of crystals such as enstatite (MgSiO 3 ), fluorcanasite (K 2 Na 4 Ca 5 Si 12 O 30 F 4 ), 8 , 9 and lithium disilicate (Li 2 Si 2 O 5 ), 10 which improve the mechanical properties of the glass, such as an increase in the fracture toughness. 3 − 12 GCs with lower fracture toughness have also attracted attention with respect to their fracture behavior.…”

“…The discovery of glass ceramics (GCs) promoted research into their properties, which are superior to those of monolithic glass materials. − GCs are composed of crystals such as enstatite (MgSiO 3 ), fluorcanasite (K 2 Na 4 Ca 5 Si 12 O 30 F 4 ), , and lithium disilicate (Li 2 Si 2 O 5 ), which improve the mechanical properties of the glass, such as an increase in the fracture toughness. − GCs with lower fracture toughness have also attracted attention with respect to their fracture behavior. Notably, hexagonal platy particles of metastable CaAl 2 Si 2 O 8 layered crystals in the CaO–Al 2 O 3 –SiO 2 (CAS) system form a house-of-cards structure that exhibits crack deflection and microcracks by Vickers indentation ,− in a manner similar to mica GCs .…”

Assessment of the Crystallization Process of CaO–Al2O3–SiO2 Glass Probed with Tb3+ Luminescence

“…Glass-ceramics (GCs) 1 − 5 are composite materials produced by precipitating crystalline phases in glassy phases by heat treatment. Following the initial reports of these materials, 1 their crystalline microstructures were widely investigated as a means of developing practical applications.…”

“…Glass-ceramics (GCs) − are composite materials produced by precipitating crystalline phases in glassy phases by heat treatment. Following the initial reports of these materials, their crystalline microstructures were widely investigated as a means of developing practical applications. − It is thus important to obtain information concerning crystalline phases embedded in glassy phases, although characteristics of crystals can be overlapped by those of glasses.…”

“…Glass-ceramics (GCs) − are composite materials produced by precipitating crystalline phases in glassy phases by heat treatment. Following the initial reports of these materials, their crystalline microstructures were widely investigated as a means of developing practical applications. − It is thus important to obtain information concerning crystalline phases embedded in glassy phases, although characteristics of crystals can be overlapped by those of glasses. In this case that the compositions of the crystalline and glassy phases can be close to one another, these two phases cannot be separately assessed.…”