Glass ceramic for realizing high dielectric constant and high breakdown performance by regulating glass network structure and preparation method thereof
A technology of glass ceramics and dielectric constant, applied in the field of glass ceramics and its preparation, can solve the problems of difficult to achieve energy storage density, reduction of breakdown strength of glass matrix, etc., and achieve the effect of suppressing interface polarization and high energy storage
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[0027] Example 1:
[0028] Crystallization treatment of the glass sample in this example: keep the temperature at the crystallization peak for 2h.
[0029] The preparation method of the glass-ceramic material of the present embodiment comprises the following steps:
[0030] 1) The molar ratio of this embodiment is x : 1- x : 7: 8 ( x =0) La 2 O 3 , Na 2 CO 3 , K 2 CO 3 and Nb 2 O 5 ; glass phase is SiO 2 ; The crystalline phase and the glass phase are mixed in a molar ratio of 4:1.
[0031] 2) When the quartz crucible is heated from room temperature to 1100 ℃ with the furnace, start adding the mixture, then continue to heat to 1500 ℃, and keep the temperature at 1500 ℃ for 60 minutes to make the mixture melt evenly to obtain a mixed molten material; put the mixed molten material on the copper plate After forming, it was quickly put into the furnace and annealed at 500°C for 11 hours to obtain the annealed glass substrate;
[0032] 3) Hold the temperature for 2 ho...
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[0034] Example 2:
[0035] In this example x=1;
Example Embodiment
[0036] Example 3:
[0037] In this example x =3;
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