Europium-dysprosium co-doped long-afterglow glass ceramic and preparation method thereof
A glass ceramic, long afterglow technology, applied in glass manufacturing equipment, glass molding, chemical instruments and methods, etc., can solve the problems of low brightness and service life, and achieve the effect of reducing production cost, increasing output, and simple preparation process
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0015] Example 1: Sr 2 MgSi 2 o 7 :0.5Eu,0.5Dy
[0016] Weigh SiO with a purity greater than 99.9% according to the stoichiometric ratio 2 , SrCO 3 , MgO, Eu 2 o 3 and Dy 2 o 3 as raw material. Grind the ingredients in an agate mortar and pestle until well mixed. The mixture was calcined at 1400°C for 1 hour, then placed at 1750°C for repeated melting twice, and the molten liquid was poured into water at room temperature to form a glass. Heat the obtained glass at 1300°C for 30 minutes, then raise it to 1550°C, melt for 0.5~1 hour, and finally heat it to 1750°C, keep it warm for 10 minutes, then pour it into distilled water at room temperature to obtain a glass block. The glass block was ground in acetone, and the obtained powder was subjected to cold isostatic pressing at 300 MPa, kept under pressure for 10 min, and then sintered at 1200° C. for 1 h to obtain the glass ceramics.
Embodiment 2
[0017] Example 2: Sr 2 MgSi 2 o 7 :0.6Eu,0.4Dy
[0018] Weigh SiO with a purity greater than 99.9% according to the stoichiometric ratio 2 , SrCO 3 , MgO, Eu 2 o 3 and Dy 2 o 3 as raw material. Grind the ingredients in an agate mortar and pestle until well mixed. The mixture was calcined at 1300°C for 3 hours, then placed at 1550°C for repeated melting twice, and the molten liquid was poured into water at room temperature to form a glass. The obtained glass was heated at 1400°C for 15 minutes, then raised to 1600°C, melted for 0.5 hours, finally heated to 1750°C, kept for 10 minutes, then poured into distilled water at room temperature to obtain a glass block. The glass block was ground in acetone, and the obtained powder was subjected to cold isostatic pressing at 300 MPa, kept under pressure for 10 min, and then sintered at 1200° C. for 1 h to obtain the glass ceramics.
Embodiment 3
[0019] Example 3: Sr 2 MgSi 2 o 7 :0.7Eu,0.3Dy
[0020] Weigh SiO with a purity greater than 99.9% according to the stoichiometric ratio 2 , SrCO 3 , MgO, Eu 2 o 3 and Dy 2 o 3 as raw material. Grind the ingredients in an agate mortar and pestle until well mixed. The mixture was calcined at 1350°C for 2 hours, then placed at 1600°C for repeated melting twice, and the molten liquid was poured into water at room temperature to form a glass. The obtained glass was heated at 1340°C for 25 minutes, then raised to 1580°C, melted for 0.6 hours, finally heated to 1700°C, kept for 14 minutes, then poured into distilled water at room temperature to obtain a glass block. The glass block was ground in acetone, and the obtained powder was subjected to cold isostatic pressing at 230 MPa, kept under pressure for 20 min, and then sintered at 1120° C. for 1.5 h to obtain the glass ceramics.
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More