Glass ceramic capable of regulating crystallization power and coordinating high light transmittance and high dielectric constant and preparation method thereof
A glass-ceramic, dielectric constant technology, applied in glass manufacturing equipment, glass molding, manufacturing tools and other directions, can solve the problem of reducing the possibility of multi-functional application of materials, reducing the light transmittance of glass ceramics, etc., to achieve more molding methods. , the effect of decreasing the crystallization tendency and reducing the concentration of crystal nucleus
Active Publication Date: 2021-08-10
SHAANXI UNIV OF SCI & TECH
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Problems solved by technology
[0003] After crystallization treatment, the dielectric constant of the material is increased. However, the precipitation of ceramic phases will reduce the light transmittance of glass ceramics, which greatly reduces the possibility of multifunctional applications of the material. Therefore, it is necessary to design a high dielectric constant and high light transmittance preparation method is a top priority
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Embodiment 1
[0029] The crystallization treatment of the glass sample in this embodiment: heat preservation at the crystallization peak for 2 hours.
[0030] The preparation method of the glass-ceramic material of the present embodiment comprises the following steps:
[0031] 1) The molar ratio of this embodiment is x : 35- x : 5: 40 ( x =0,1,3,5,10) of ZrO 2 、Na 2 CO 3 、K 2 CO 3 and Nb 2 o 5 ; The glass phase is SiO 2 ; The molar ratio of crystal phase and glass phase is 4:1.
[0032] 2) When the quartz crucible is heated with the furnace from room temperature to 1100°C, start to add the mixture, then continue to heat to 1500°C, and keep the temperature at 1500°C for 60 minutes to melt the mixture evenly to obtain a mixed molten material; put the mixed molten material on the copper plate Forming, then quickly put into the furnace and anneal at 500°C for 11 hours to obtain the annealed glass matrix;
[0033] 3) Keep warm at the crystallization peak temperature for 2h, and then ...
Embodiment 2
[0036] In this example x =1;
Embodiment 3
[0038] In this example x =3;
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The invention relates to glass ceramic capable of regulating crystallization power and coordinating high light transmittance and high dielectric constant and a preparation method of the glass ceramic. The microcrystalline glass material is prepared by compounding a crystal phase and a glass phase, wherein the crystal phase is prepared from raw materials through mixing, melting, cooling molding, annealing and crystallization heat treatment, wherein the crystal phase is prepared from ZrO2, Na2CO3, K2CO3 and Nb2O5 in a molar ratio of x: (35-x): 5: 40 (x is equal to 0, 1, 3, 5 and 10); the glass phase is SiO2; and the molar ratio of the crystal phase to the glass phase is 4: 1. The potassium-sodium niobate-based dielectric glass ceramic material prepared by the invention is high in dielectric constant and high in light transmittance; and according to the invention, ZrO2 is added, so that the viscosity of a glass matrix is improved, and the crystallization trend and the grain concentration are reduced. And then through a reasonable crystallization treatment system, the grain size is improved.
Description
technical field [0001] The invention relates to the field of glass-ceramic materials and a preparation method thereof, in particular to a glass-ceramic capable of regulating crystallization dynamics and coordinating high light transmittance and high dielectric constant and a preparation method thereof. Background technique [0002] Electronic materials are used to make electronic components and integrated circuits. Due to the current requirements of miniaturization, integration, and light weight, it is of great value to be able to prepare multifunctional materials. Glass material has excellent light transmission, and after proper crystallization treatment, glass ceramics with high dielectric constant can be obtained. [0003] After crystallization treatment, the dielectric constant of the material is increased. However, the precipitation of ceramic phases will reduce the light transmittance of glass ceramics, which greatly reduces the possibility of multi-functional applica...
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IPC IPC(8): C03C10/02C03C1/00C03B32/02C03B25/00C03B19/02
CPCC03C10/00C03C1/00C03B32/02C03B25/00C03B19/02
Inventor 蒲永平彭鑫杜欣怡
Owner SHAANXI UNIV OF SCI & TECH