Fluoride and oxide microcrystalline glass intermingling with rare earth ion , and its preparation method
A technology of oxyfluoride and glass ceramics, which is applied in glass manufacturing equipment, glass molding, manufacturing tools, etc., to achieve the effects of simple preparation method, transparent physical and chemical properties, and low production cost
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Embodiment 1、2、3
[0026] Embodiments 1, 2, and 3 are only different in formula composition, and the melting process of glass is the same, and the specific preparation process is as follows:
[0027] The first step is to melt the oxyfluoride glass and weigh it according to the formula composition in Table 1. After mixing the analytically pure powdery raw materials evenly, put them in a quartz crucible or platinum crucible and melt them at a melting temperature of 900-1000 °C. The raw materials are completely melted, after being homogenized and clarified, they are released at 800-900°C, and the molten glass is poured on the preheated iron mold; then the glass is quickly put into the muffle that has been heated to the vicinity of the material transition temperature (Tg) Annealing in the furnace: first keep warm for 2 hours, then cool down to 50-100°C at a rate of 2-5°C / hour, then turn off the power of the muffle furnace and automatically cool down to room temperature;
[0028] The second step, the...
Embodiment 4、5
[0030] The first step is to select the glass formula, and weigh the raw materials according to the formulas of the 4th and 5th embodiments in Table 1;
[0031] In the second step, the process of melting the oxyfluoride glasses of the fourth and fifth embodiments is basically the same as that of the glasses of the first, second and third embodiments. However, the melting temperature of the glass is slightly increased, and the melting temperature of the glass is 950-1050°C. The annealing process of the glasses of the fourth and fifth embodiments is basically the same as that of the glasses of the first, second, and third embodiments, and the annealing temperature is slightly increased.
[0032] In the third step, the preparation process of the oxyfluoride glass-ceramics in the fourth and fifth embodiments is basically the same as that of the glasses in the first, second and third embodiments. That is, according to the glass thermal analysis (DTA) experimental data, the prepared...
Embodiment 6、7
[0034] The first step, carry out formula weighing raw material according to the 6th, 7th embodiment glass raw material in table 1;
[0035] In the second step, the process of melting the oxyfluoride glasses of the sixth and seventh embodiments is basically the same as that of the glasses of the first, second, third, fourth and fifth embodiments. Similarly, the melting temperature of the glass is slightly increased, and the melting temperature of the glass is 1000-1050°C. The annealing process of the glasses of the sixth and seventh embodiments is basically the same as that of the glasses of the first, second, and third embodiments, and the annealing temperature is slightly increased.
[0036] In the third step, the preparation process of the oxyfluoride glass-ceramics in the sixth and seventh embodiments is basically the same as that of the glasses in the first, second, third, fourth and fifth embodiments. That is, according to the glass thermal analysis (DTA) experimental da...
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