Microcrystalline glass used for color display and preparation method thereof
A technology of glass-ceramics and color display, applied in the field of glass-ceramics for color display and its preparation, can solve the problems of complex dual light source pumping structure, poor glass stability, and low luminous efficiency, and achieve up-conversion luminescence of glass-ceramics The effect of good performance, low production cost and simple preparation method
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Embodiment 1
[0029] Composition is as shown in table 1, and concrete preparation method comprises the following steps:
[0030] ① Melting of rare earth-doped oxyfluoride glass: After mixing the powdered raw materials evenly, put them into a platinum crucible and melt them in a silicon carbide rod electric furnace at 950°C. Then the glass is quickly moved into a muffle furnace that has been heated to the glass transition temperature (Tg) for annealing. The annealing process is: keep warm at around 330°C for 3 hours, then cool down to 200°C at a rate of 10°C / hour, and then cool down to 100°C at a rate of 20°C / hour, then close the muffle furnace and cool down to room temperature. Remove the glass sample after complete cooling.
[0031] ②Preparation method of rare earth-doped oxyfluoride glass-ceramics: According to glass thermal analysis (DTA) data, the prepared glass sample is heated from room temperature to 420°C at a rate of 50°C / hour for 3 hours, and then rapidly heated to 440°C °C for ...
Embodiment 2
[0036] Composition is as shown in table 1, and concrete preparation method comprises the following steps:
[0037] ①: Melting of rare earth-doped oxyfluoride glass: After mixing the powdered raw materials evenly, put them into a platinum crucible and melt them in a silicon carbon rod electric furnace at 970°C. On the preheated graphite mold, the glass is then rapidly moved into a muffle furnace that has been raised to the glass transition temperature (Tg) for annealing. The annealing process is: keep warm at around 358°C for 3 hours, then cool down to 200°C at a rate of 10°C / hour, and then cool down to 100°C at a rate of 20°C / hour, then close the muffle furnace and cool down to room temperature. Take out the glass sample after complete cooling;
[0038] ②: Preparation method of rare earth-doped oxyfluoride glass-ceramics: According to glass thermal analysis (DTA) data, the prepared glass sample is heated from room temperature to 400 °C at a rate of 50 °C / hour for 1 hour, and ...
Embodiment 3
[0043] Composition is as shown in table 1, and concrete preparation method comprises the following steps:
[0044] ①: Melting of rare earth-doped oxyfluoride glass: After mixing the powdered raw materials evenly, put them into a platinum crucible and melt them in a silicon carbon rod electric furnace at 1000°C. On the preheated graphite mold, the glass is then rapidly moved into a muffle furnace that has been raised to the glass transition temperature (Tg) for annealing. The annealing process is: keep warm at 380°C for 3 hours, then cool down to 200°C at a rate of 10°C / hour, and then cool down to 100°C at a rate of 20°C / hour, then close the muffle furnace and cool down to room temperature. Remove the glass sample after complete cooling.
[0045] ②: Preparation method of rare earth-doped oxyfluoride glass-ceramics: According to glass thermal analysis (DTA) data, the prepared glass sample is heated from room temperature at a rate of 50°C / hour to 500°C for 3 hours, and then rapi...
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