研究目的
To investigate the application of quartz-containing materials from various deposits and search for a rational ratio of complex decolorizers in order to prepare glass with the optimal composition possessing high light transmittance.
研究成果
The synthesis of container and sheet glass using quartz sands from different deposits with complex decolorizers (ceria and potassium nitrate) achieves high light transmittance (up to 90–93%) and improved properties such as hydrolytic stability and thermal expansion. The raw materials are recommended for production, offering a cost-effective approach with reduced manufacturing costs.
研究不足
The study is limited to specific quartz sand deposits and glass compositions; potential adverse effects of high ceria concentrations (e.g., solarization) are noted but not fully explored. Industrial scalability and cost-effectiveness in large-scale production may require further optimization.
1：Experimental Design and Method Selection:
Glass synthesis in corundum crucibles at 1400–1500°C for 3 hours, followed by annealing at 560°C. Use of complex decolorizers (ceria and potassium nitrate) to study their effects on light transmission and other properties.
2：Sample Selection and Data Sources:
Quartz sands from Kamensk-Ural’skoe deposit and Leningrad Region, limestone from Sosnovskoe deposit, dolomite from Krylosovo, and other raw materials as per Table
3：Glass compositions include container glass (BT-1 brand) and float glass as per Table List of Experimental Equipment and Materials:
Corundum crucibles, muffle furnace, atomic-emission spectrometer (Thermo ICAP 6300), dilatometer (DIL 402 C NETZSCH), two-beam spectrophotometer (Shimadzu UV–2600), gradient furnace, and various chemicals (e.g., ceria, potassium nitrate).
4：Experimental Procedures and Operational Workflow:
Synthesis of glass batches, melting, casting into sheets, annealing, cutting and polishing specimens to 4 mm thickness, measurement of chemical composition, thermal expansion, water resistance, crystallizing ability, and spectral transmittance.
5：Data Analysis Methods:
Atomic-emission spectroscopy for chemical analysis, dilatometry for thermal expansion, spectrophotometry for light transmittance, and standard methods for water resistance and crystallizing ability.
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