Hong Li, Manuela Reben, Jason Dobyne, Qingwei Wang, Xiaoyun Liu
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A comprehensive study of the batch-to-melt conversion process of a high-boron alkaline earth aluminosilicate glass
A comprehensive study of the batch-to-melt (BtM) conversion process was carried out on a single high-boron alkaline earth aluminosilicate glass composition, which is relevant to manufacturing high-performance fiberglass for high-end electronic applications. In the study, we used several techniques to trace the BtM process from room temperature up to 1400°C, namely isotherm batch heat-treatment, X-ray diffraction (XRD), hot-stage microscopy (HSM), high-temperature differential scanning calorimetry (DSC), and Fourier transform infrared (FT-IR). In the BtM process, the intermediate aluminum borate phase (Al4B2O9) between 1000 and 1100°C was identified. The formation of Al4B2O9 is explained in conjunction with the dihydroxylation of kaolin. For the first time, the potential use of the FT-IR method in studying the BtM process was demonstrated, including the dissolution of sand above 1100°C.
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The International Journal of Applied Glass Science (IJAGS) endeavors to be an indispensable source of information dealing with the application of glass science and engineering across the entire materials spectrum. Through the solicitation, editing, and publishing of cutting-edge peer-reviewed papers, IJAGS will be a highly respected and enduring chronicle of major advances in applied glass science throughout this century. It will be of critical value to the work of scientists, engineers, educators, students, and organizations involved in the research, manufacture and utilization of the material glass. Guided by an International Advisory Board, IJAGS will focus on topical issue themes that broadly encompass the advanced description, application, modeling, manufacture, and experimental investigation of glass.
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