Contains nanbo 3 Phase na 2 o-k 2 o-nb 2 o 5 -sio 2 Low dielectric loss energy storage glass ceramics

A technology of glass ceramics, na2o-k2o-nb2o5-sio2, applied in glass furnace equipment, glass manufacturing equipment, manufacturing tools, etc., can solve the problem of little research on potassium sodium niobate glass ceramic materials, low utilization of raw materials, and complex raw materials And other issues

Active Publication Date: 2021-04-27
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, niobate glass ceramics is a hot research topic of energy storage glass ceramics, but most of them are researched on strontium barium niobate glass powder or ceramics. However, the raw materials used in the preparation process of strontium barium niobate glass ceramics are relatively complicated, and there Utilization of low defects; and little research on potassium sodium niobate glass-ceramic materials

Method used

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  • Contains nanbo <sub>3</sub> Phase na <sub>2</sub> o-k <sub>2</sub> o-nb <sub>2</sub> o <sub>5</sub> -sio <sub>2</sub> Low dielectric loss energy storage glass ceramics
  • Contains nanbo <sub>3</sub> Phase na <sub>2</sub> o-k <sub>2</sub> o-nb <sub>2</sub> o <sub>5</sub> -sio <sub>2</sub> Low dielectric loss energy storage glass ceramics
  • Contains nanbo <sub>3</sub> Phase na <sub>2</sub> o-k <sub>2</sub> o-nb <sub>2</sub> o <sub>5</sub> -sio <sub>2</sub> Low dielectric loss energy storage glass ceramics

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Embodiment 1

[0028]The crystallization treatment of the glass sample in this embodiment: heat insulation at 950 ° C for 4 h.

[0029]The preparation method of the glass ceramic material of the present embodiment includes the steps of:

[0030]1) The potassium sodium potassium potassium potassium acid glass ceramic material is 40% from the moles of mass.x: 40 (1-x: 40: 20 (x= 1), take NA2CO3K2CO3, NB2O5SiO2mixing.

[0031]2) When the stone crucible is heated from room temperature to 1100 ° C, the mixture is started, and then the mixture is added to 1500 ° C, and the holding 60 min is charged at 1500 ° C for 60 min to uniformly melt, to obtain a mixed melt; mixed melt in the copper plate Forming, rapidly discharged into the furnace at 500 ° C for 11 h, and the glass substrate after annealing is obtained;

[0032]3) Continue at 905 ° C for 1 h at 708 ° C for 4 hours and then cooled to room temperature, resulting in K2O-NA2O-NB2O5-Sio2-B2O3System glass ceramic material.

[0033]Potassium niobate sodium ceramics ob...

Embodiment 2

[0035]The formulation of the glass sample in this embodiment is 40x: 40 (1-x: 40: 20 (x= 0.9) and fused at 1500 ° C and incubated for 60 min, and other conditions as in Example 1.

Embodiment 3

[0037]The formulation of the glass sample in this embodiment is 40x: 40 (1-x: 40: 20 (x= 0.8), other conditions as in Example 2.

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Abstract

The present invention relates to containing NaNbO 3 Phase Na 2 O‑K 2 O‑Nb 2 o 5 ‑SiO2 2 Low dielectric loss energy storage glass-ceramic material, the glass-ceramic material is obtained by mixing glass phase and crystal phase, melting, cooling forming, annealing and crystallization heat treatment; wherein, the glass phase accounts for 20% by mole percentage %, the balance is the crystalline phase; the crystalline phase is obtained by molar ratio of x :(1- x ): 1 Na 2 CO 3 、K 2 CO 3 , Nb 2 o 5 Obtained by heating and melting, 0.7≤x≤1. The potassium sodium niobate base energy storage glass-ceramic material that the present invention makes is low in dielectric loss; The Na that the present invention adds 2 CO 3 , not only adjusts the crystal phase composition of the potassium sodium niobate system, but also promotes the crystallization process to a certain extent, forming NaNbO which is conducive to high energy storage density 3 Phase, finally get high energy storage density glass-ceramic material.

Description

Technical field[0001]The present invention relates to the field of glass ceramic materials, and more particularly to a nanbo3Phase NA2O-K2O-NB2O5-Sio2Low dielectric loss energy storage glass ceramic material and preparation method thereof.Background technique[0002]In recent years, the development of pulse technology and higher application demand have made more stringent requirements for the material's electricity breakdown and energy storage performance, so it is the increasing iron glass ceramic material of a large branch of storage dielectric material. The more favored by researchers. The ferroelectric glass ceramic mainly depends on the high-shifting of its internal glass phase and the good dielectric properties of the ferroelectric phase match each other, and ultimately makes the material have a large energy storage density.[0003]Calculating formula according to the storage density of the linear dielectricHowever, the energy storage density of the energy storage element is relat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C10/02C03C6/04C03C4/16C03B5/16C03B25/00C03B32/02
CPCC03B5/16C03B25/00C03B32/02C03C1/00C03C4/16C03C10/0072
Inventor 蒲永平彭鑫杜欣怡师裕张磊
Owner SHAANXI UNIV OF SCI & TECH
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