采用高温旋转黏度计、X射线衍射分析(XRD)、拉曼光谱、扫描电镜(SEM)等测试手段,研究了MgO和ZnO引入量的调整对锂铝硅微晶玻璃熔制温度、高温黏度和晶化过程的影响.结果表明:增大MgO和ZnO的引入量可以有效地降低母体玻璃的黏度.当MgO和ZnO引入量从2.0wt%增大到8.Owt%时,母体玻璃的高温黏度明显降低,熔制温度从1650℃降低到1545℃,晶化处理后析出的主晶相由β-锂辉石固溶体向LixAlxSi1-xO2固溶体转变,析晶速率加快,主晶相含量升高.此外,结合Raman光谱分析可以发现,试样中有微量的锐钛矿晶相析出.
参考文献
[1] | George H. Beall;Linda R. Pinckney .Nanophase glass-ceramics[J].Journal of the American Ceramic Society,1999(1):5-16. |
[2] | Guo XZ;Yang H;Cao M .Nucleation and crystallization behavior of Li2O-Al2O3-SiO2 system glass-ceramic containing little fluorine and no-fluorine[J].Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites,2005(24/25):2133-2137. |
[3] | Zheng WH;Cheng JS;Tang LY;Quan J;Cao X .Effect of Y2O3 addition on viscosity and crystallization of the lithium aluminosilicate glasses[J].Thermochimica Acta: An International Journal Concerned with the Broader Aspects of Thermochemistry and Its Applications to Chemical Problems,2007(1):69-74. |
[4] | 程金树,郑伟宏,楼贤春,郑勇,李宏.MgO/ZnO对锂铝硅系微晶玻璃性能的影响[J].武汉理工大学学报,2006(02):4-6,13. |
[5] | Bae SJ;Kang U;Dymshits O;Shashkin A;Tsenter M;Zhilin A .Raman spectroscopy study of phase transformations in titania-containing lithium aluminosilicate glasses doped with CoO[J].Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites,2005(37/39):2969-2978. |
[6] | Okuno M;Zotov N;Schmucker M;Schneider H .Structure of SiO2-Al2O3 glasses: Combined X-ray diffraction, IR and Raman studies[J].Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites,2005(12/13):1032-1038. |
[7] | 陆雷,赵莹,张乐军,王浩.晶核剂及热处理对锂铝硅系微晶玻璃晶化和性能的影响[J].材料科学与工程学报,2008(03):441-445,405. |
[8] | L. ARNAULT;M. GERLAND;A. RIVIERE .Microstructural study of two LAS-type glass-ceramics and their parent glass[J].Journal of Materials Science,2000(9):2331-2345. |
[9] | Roos C;Becker O;Siebers F .Microstructure and stresses in a keatite solid-solution glass-ceramic[J].Journal of Materials Science,2007(1):50-58. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%