Preparation, structural and thermo-mechanical properties of lithium aluminum silicate glass–ceramics

Crystallization Behavior of SiO2–Al2O3–ZnO–CaO Glass System at 1123–1273 K

“…More recently, it was demonstrated that glass–ceramics, prepared by controlling the crystallization of the parent glasses, could combine the generally superior properties of crystallite ceramics with the ease of processing of glasses. Glass–ceramics could offer the advantages of a higher mechanical strength and more refractory behavior than its glassy counterpart, coupled with the ability to tailor the CTE to match the substrates 9–16 …”

“…Glass-ceramics could offer the advantages of a higher mechanical strength and more refractory behavior than its glassy counterpart, coupled with the ability to tailor the CTE to match the substrates. [9][10][11][12][13][14][15][16] Within the framework of our papers published previously, [17][18][19][20][21] an SiO 2 -Al 2 O 3 -ZnO-CaO-based glass coating (or glass-Al 2 O 3 composite coating) has been prepared on superalloys or intermetallics. The results of isothermal tests for 100 h revealed that this glassy coating exhibited excellent high-temperature oxidation resistance at 1273 K and hot corrosion resistance in the molten sulfate salts at 1173 K. However, there is little information on the crystallization characteristics of this system at its service temperatures, and the thermal performance of this glass coating for long term (e.g., 4300 h) is still lacking.…”

A Comparative Overview of Glass-Ceramic Characterization by MAS-NMR and XRD

“…This change in the glass network was corroborated by means of 27 Al NMR, which is presented in Figure 1. At 12 hours dwell time, the fraction of octahedral Al (Al [6] ) increases and this favors the formation and growth of new MAT nuclei ( Figure 1). This study illustrates the changes taking place in the glass due to the migration of particles at the glass-to-crystal interface.…”

The preparation and mechanical properties of carbon–carbon/lithium–aluminum–silicate composite joints

“…As a result, LAS glassceramics have been utilized to produce radomes, cookware and heat exchangers [12,13]. In particular, LAS glass-ceramics have attracted increasing attentions in aviation owing to their excellent thermostability and dielectric properties [14].…”