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Glass-ceramic

A technology of glass-ceramics and grain size, which is applied in the field of glass-ceramics with high dielectric constant, can solve problems such as restricting development, and achieve the effects of high relative dielectric constant, efficient and stable production, and uniform internal quality

Active Publication Date: 2021-08-17
CDGM GLASS LLC
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  • Abstract
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  • Claims
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Problems solved by technology

The above shortcomings limit the development of the two materials prepared by traditional methods in the field of energy storage

Method used

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Embodiment Construction

[0019] Glass-ceramics, also known as glass-ceramics, is a material that is crystallized inside the glass by heat-treating the glass. The glass-ceramic of the present invention is a material having a crystalline phase and a glass phase, as distinguished from amorphous and crystalline solids. Glass ceramics can have properties that cannot be obtained in glass, such as properties such as dielectric constant and hardness, due to crystals dispersed in the interior.

[0020] After repeated tests and researches, the inventor obtained the glass-ceramic of the present invention at a relatively low cost by specifying the content and content ratio of the specific components constituting the glass-ceramic to a specific value and making it precipitate a specific crystal phase. . Next, the composition range of each component of the glass ceramics of this invention is demonstrated. In this specification, unless otherwise specified, the content of each component is expressed in % by weight ...

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Abstract

The present invention provides a glass-ceramic with high dielectric constant. Glass-ceramic, the composition of which contains by weight %: SiO 2 15~30%; SrO 10~18%; BaO15~35%; Nb 2 o 5 20~35%;Na 2 O 0.5~10%; ZrO 2 1 to 5%. The relative permittivity of the glass-ceramic of the present invention is more than 40, has high relative permittivity, can be used for the substrate of the dielectric film in the filter, protective mirror, disk substrate etc.; The present invention solves the problem by optimizing each composition and content Solved the problem of forming hair cream of glass-ceramics with quartz solid solution and barium strontium niobate as the main crystal phase, and the internal quality is uniform, which can be produced efficiently and stably.

Description

technical field [0001] The present invention relates to a glass-ceramic, in particular to a glass-ceramic with high dielectric constant. Background technique [0002] With the rapid development of science and technology, people hope that optical equipment can be miniaturized and lightweight, which puts forward higher requirements on the energy storage characteristics of capacitors, making the development of dielectric materials as the core components of capacitors face more challenges. How to further increase the energy storage density of dielectric materials has become the focus of research. [0003] Common dielectric materials mainly include ceramics, polymers, and composite materials composed of the two. Ceramic materials have a very high dielectric constant, but the breakdown field strength is very small; polymer dielectric materials have a high breakdown field strength, but their dielectric constant is generally low, usually <5. The above shortcomings limit the dev...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C10/14C03C10/02C03C4/16
CPCC03C4/16C03C10/00C03C10/0036
Inventor 孙楚皓于天来原保平胡斌
Owner CDGM GLASS LLC
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