In this paper, the effect of boron-aluminum anomaly on the structure-performance of alkali-free glass substrates is investigated, aiming to provide key guidance for the optimization and transformation of display devices. Mainly using XPS, infrared, glass modeling and performance analysis, the survey results show: As the substitution of B₂O₃ for Al₂O₃ reaches 8wt%, the boron-aluminum anomaly appears (³B→⁴B, ⁴Al→⁶Al), causing extremum of performance to occur. The whole process also affects the Qⁿ family, as the coordination number of B and Al points to 4, the Qⁿ family is more inclined to Q⁴, and vice versa. Moreover, the coordination status of B and Al does not completely follow the RO/Al₂O₃ ratio due to the secondary polarization of O²⁻ caused by the high field strength of R²⁺. The glass obtained in this study basically meets or even far exceeds the requirements of substrate usage, which has certain referenced significance for the actual display industry.

本文研究了硼铝异常对无碱玻璃基板结构性能的影响，旨在为显示装置的优化和改造提供关键指导。主要通过XPS，红外，玻璃建模和性能分析，调查结果表明：随着B ₂ O ₃替代Al ₂ O ₃达到8wt％，硼铝异常出现（³ B→ ⁴ B，⁴ Al→ ⁶ A1），导致性能极值的发生。整个过程也影响Q ⁿ族，因为B和Al的配位数为4，Q ⁿ家庭更倾向于Q ⁴，反之亦然。此外，由于由R ²⁺的高场强引起的O ^2-的二次极化，B和Al的配位状态不能完全遵循RO / Al ₂ O _3的比率。本研究获得的玻璃基本上可以满足甚至超过基板使用的要求，这对实际的显示器行业具有一定的参考意义。