采用差热分析(DTA),X射线衍射分析(XRD),扫描电镜(SEM)等分析手段研究了F-离子对Li2O-Al2O3-SiO2系微晶玻璃形核和晶化的影响.结果发现,引入F-离子使得玻璃的析晶峰值温度降低,玻璃的析晶活化能E降低,晶化指数n加大.引入F-离子后,一方面促进了玻璃析晶和晶化,LixAlxSi1-xO2固溶体析出以及LixAlxSi1-xO2固溶体向β-锂辉石固溶体转变加快,晶化后的晶粒尺寸加大,析晶活化能E,晶化指数n与扫描电镜(SEM)分析一致.表明F-离子促进了玻璃晶化和离子扩散.
参考文献
| [1] | Beall G H, Pinckney L R. J. Am. Ceram. Soc., 1999, 82 (1): 5-16. |
| [2] | Arnault L, Gerland M, Riviere A. J. Mater. Sci., 2000, 35 (9): 2331-2345. |
| [3] | Riello P, Canto P, Comelato N, et al. Journal of Non-Crystalline Solids, 2001, 288 (1-3): 127-133. |
| [4] | Barbieri L, Leonelli C, Manfredini T, et al. J. Am. Ceram. Soc., 1997, 80 (12): 3077-3083. |
| [5] | Hsu Jen-Yan, Speyer R F. J. Am. Ceram. Soc., 1990, 73 (12): 3585-3593. |
| [6] | Maier V, Mueller G. J. Am. Ceram. Soc., 1987, 70 (8): c176-c178. |
| [7] | Duan R G, Liang K M, Gu S R. Mater. T. JIM., 1998, 39 (11): 1164-1166. |
| [8] | Tian J M, Cao X G, Zhang Y, et al. J. Mater. Sci., 2002, 37: 1789-1792. |
| [9] | Holland H J, Gulati S T. J. Am. Ceram. Soc., 1980, 63 (11-12): 686-690. |
| [10] | Avrami M. J. Chem. Phys., 1939, 7: 1103-1112, 9: 177-184. |
| [11] | Johnson W A, Mehl K F. Trans. AIME. 1939, 135, 416-442. |
| [12] | Kissinger H E. J. Res. Nat ' l Bureau Stand., 1956, 57: 217-221. |
| [13] | Augis J A, Bennett J E. J. Thermal. Anal., 1978, 13: 283-292. |
| [14] | Griggs J A, Anusavice K J, Mlecholsky Jr J J. J. Mater. Sci., 2002, 37 (10): 2017-2022. |
| [15] | Nordmann A, Cheng Y B. Brit. Ceram. T, 1997, 96 (4): 141-148. |
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%