硼硅酸盐玻璃具有优良的抗热冲击性能和优异的光学性能。主要探讨了Al2 O3对硼硅酸盐玻璃的结构和性能的影响。通过红外光谱测试分析了Al2 O3含量不同时玻璃的结构变化,测试了玻璃的热膨胀系数,转变温度、膨胀软化温度、粘度和化学稳定性。研究结果表明：Al2 O3的加入使得玻璃结构中[ BO4]减少,[ BO3]相应增加,从而使得玻璃结构疏松。玻璃的热膨胀系数增大,Tg 和膨胀软化点Td 降低,化学稳定性减弱；但玻璃的软化点Tf 在Al2 O3含量小于3%时,随Al2 O3含量增加有降低趋势,大于3%时随Al2 O3含量增加有增大的趋势。玻璃的高温粘度随Al2 O3的加入增大,但低温粘度减小。
The borosilicate glass has excellent thermal shock resistance and excellent optical performance. This paper was mainly studied on influence of Al2 O3 on the structure and properties of the borosilicate glass. The structure of borosilicate glass was analyzed by infrared spectra at different contents of Al2 O3 . The thermal expansion coefficient, transition temperature, softening temperature, viscosity and chemical stability of the glass were tested. The result show that: with the addition of Al2 O3 , the [ BO4 ] in the glass structure decreased, and the [ BO3 ] increased correspondingly, so glass structure becomes more loose;The thermal expansion coefficient of glass is increased, and the Tg and the expansion softening point Td decrease, the chemical stability is reduced; However, the softening point Tf of the glass decreases with the increase of the Al2 O3 content when the Al2 O3 content is less than 3%, and it is opposite when the Al2 O3 content is more than 3%. the high temperature viscosity of the glass increases with the addition of Al2 O3 , but the low temperature viscosity decreases.
参考文献
| [1] | 何峰;房玉;刘佳;程金树.B2O3对硼硅酸盐玻璃结构和性能的影响[J].武汉理工大学学报,2012(2):1-4. |
| [2] | 陈珍霞;全健;钟韵鸣.Al_2O_3对低熔点硼硅酸盐玻璃结构和性能的影响[J].武汉理工大学学报,2009(22):26-29. |
| [3] | 万军鹏 .浮法硼硅酸盐平板玻璃组成、结构与性能的研究[D].武汉理工大学,2008. |
| [4] | 万军鹏;程金树;陆平.Al2O3对硼硅酸盐玻璃热膨胀和分相的影响[J].硅酸盐学报,2008(4):544-547,551. |
| [5] | T.Kloss;G.Lautenschlager.Advances in the process of floating borosilicate glasses and some recent applications for specialty borosilicate float glasses[J].Glass Technology,20006(6):177-181. |
| [6] | 干福熹.含多种玻璃生成体氧化物玻璃的振动光谱和结构[J].光学学报,1984(04):339. |
| [7] | 房玉 .硼硅酸盐玻璃组成、结构与性能的研究[D].武汉理工大学,2012. |
| [8] | 肖卓豪;卢安贤.R2O-MO-Al2O3-SiO2玻璃的组成与其热膨胀系数的关系[J].中南大学学报（自然科学版）,2005(4):566-570. |
| [9] | 钱达兴;周萘;孙道兵.玻璃熔制时影响氧化硼挥发的若干工艺因素[J].建筑材料学报,1998(02):197. |
| [10] | 苏文捐 .低软化点硼硅酸盐微晶玻璃的研究[D].内蒙古科技大学,2011. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%