Controlled crystallization of BaO–B2O3–Bi2O3 Glass in the temperature range of a supercooled melt in the presence of additional nucleation centers
Source abstract
Abstract
To use the promising BaO–B 2O 3–Bi 2O 3 glass-forming system in the formation of glass-ceramic material, for example, with the yttrium aluminum garnet phase, a study of the crystallization behavior of bulk glasses and samples with additional nucleation centers acquired as a result of their crushing is carried out. In this work, the kinetics of crystallization combined with the subsequent melting of the formed phases with a change in the composition of the glass-forming system of 20Bi 2O 3 – (80- х)B 2O 3 – хBaO for x = 5, 10, 15, 20 mol% is investigated by means of differential scanning calorimetry. The crystalline phases, isolated at the established temperatures, are characterized by XRD method. A theoretically substantiated method for processing thermograms in the region of combined crystallization-melting peaks made it possible to establish the dependences of the crystallization parameters on the composition of crushed glass samples simulating nucleation centers, to find the compositions with highest stability against crystallization, and to recommend the time-temperature modes for the synthesis of glass-ceramics.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Glass properties and applications · Pigment Synthesis and Properties · Recycling and utilization of industrial and municipal waste in materials production
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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