In this work, glass-ceramics were produced with mechanical and physical properties, using recycled glass powder from windshields as raw material. The glass powder was formed and sintered at temperatures 600, 650, 700, 750, and 800°C. Pieces were also produced with the addition of niobium oxide to the glass powder. The flexural strength and the Archimedes density of the produced parts were determined. The reliability of the results was evaluated by the Weibull statistic. X-ray diffraction was performed. Maximum flexural strength was 77.64 MPa at 750°C, with the addition of niobium oxide at 43.86 MPa at 700°C. X-ray diffraction showed crystalline structures in the specimens with the addition of the nucleating agent, confirming the production of glass-ceramics in this composition. The pure glass powder only crystallized from 750°C. The Nb₂O₅ favors the formation of crystalline structures in the vitreous matrix at low temperatures and with piezoelectric structures.

中文翻译：

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烧结温度对挡风玻璃废料微晶玻璃力学性能的影响

在这项工作中，以挡风玻璃中回收的玻璃粉为原料，生产了具有机械和物理性能的玻璃陶瓷。形成玻璃粉末并在600、650、700、750和800℃的温度下烧结。还向玻璃粉中添加了氧化铌，制成了碎片。确定了所生产零件的抗弯强度和阿基米德密度。结果的可靠性通过Weibull统计量进行评估。进行X射线衍射。在750°C时最大抗弯强度为77.64 MPa，在700°C时添加43.86 MPa的氧化铌。X射线衍射显示出在样品中加入成核剂的晶体结构，证实了该组合物中玻璃陶瓷的产生。纯玻璃粉末仅在750°C结晶。铌₂ O ₅有利于在低温下在玻璃基质中形成具有压电结构的晶体结构。