Huang Shoujia, Wang Wenzhi, Jiang Hong, Zhao Huifeng, Ma Yanping
State Key Laboratory of Marine Resources Utilization in South China Sea and Special Glass Key Lab of Hainan Province, Hainan University, Haikou 570228, China.
Chengmai and State Key Laboratory of Special Glass, HNHT Special Glass Technology Co., Ltd., Chengmai 571924, China.
Materials (Basel). 2022 Jun 28;15(13):4555. doi: 10.3390/ma15134555.
Based on lithium aluminosilicate glass, the composition of glass was optimized by replacing SiO with BO, and the influence of glass composition on structure and performance was studied. With the increase in BO concentrations from 0 to 6.5 mol%, AlO always existed in the form of four-coordinated [AlO] in the network structure, and BO mainly entered the network in the form of four-coordinated [BO]. The content of Si-O-Si linkages (Q) was always dominant. The incorporation of boron oxide improved the overall degree of polymerization and connectivity of the lithium aluminosilicate glass network structure. An increase in the degree of network polymerization led to a decrease in the thermal expansion coefficient of the glass and an increase in Vickers hardness and density. The durability of the glass in hydrofluoric acid and NaOH and KOH solutions was enhanced overall.
基于锂铝硅酸盐玻璃，通过用B₂O₃取代SiO₂对玻璃成分进行了优化，并研究了玻璃成分对结构和性能的影响。随着B₂O₃浓度从0增加到6.5 mol%，Al₂O₃在网络结构中始终以四配位[AlO₄]的形式存在，且B₂O₃主要以四配位[BO₄]的形式进入网络。Si-O-Si键（Q）的含量始终占主导地位。氧化硼的引入提高了锂铝硅酸盐玻璃网络结构的整体聚合度和连通性。网络聚合度的增加导致玻璃热膨胀系数降低，维氏硬度和密度增加。玻璃在氢氟酸以及NaOH和KOH溶液中的耐久性总体上得到了提高。
