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A kind of fine functional ceramics containing silicon dioxide nanocrystals and its preparation method

A nanocrystal and silicon dioxide technology, applied in the field of ceramic materials, can solve the problems of poor structural stability, short service life, affecting the service life of electronic products, etc., and achieve the effect of long service life, avoiding agglomeration and increasing strength.

Active Publication Date: 2022-05-27
FUJIAN HUAXIA VAJRA TECH CO LTD
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  • Description
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  • Application Information

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Problems solved by technology

In order to obtain high piezoelectric performance, soft additives are generally used for doping modification. Although this method can make the performance of piezoelectric ceramics active, it has poor structural stability and short service life, which will eventually affect the life of electronic products.

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  • A kind of fine functional ceramics containing silicon dioxide nanocrystals and its preparation method
  • A kind of fine functional ceramics containing silicon dioxide nanocrystals and its preparation method

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Embodiment Construction

[0032] A fine functional ceramic containing silica nanocrystals, which includes components by weight: 8 to 10 parts of silicon dioxide nanocrystal powder; barium titanate 25 to 30 parts; aluminum hydroxide 8 to 12 parts; zirconia 45 to 55 parts; silicon carbide 10 to 18 parts; hexamethyldisilazilazane 4 to 8 parts; deionized water 12 to 18 parts. Wherein the silica nanocrystal powder is prepared from a percentage of sodium silicate 65%, absolute ethanol 12%, deionized water 23% of the composition.

[0033] The preparation method of the above fine functional ceramics containing silica nanocrystals includes the following steps:

[0034] S1: Prepare silica nanocrystal powder according to the following method:

[0035]S1-1: Weigh sodium silicate, absolute ethanol and deionized water, and its weight percentage is 65% of sodium silicate, 12% of absolute ethanol, 23% of deionized water, and then the sodium silicate, absolute ethanol and deionized water are poured into the stirring contai...

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Abstract

The invention relates to the field of ceramic materials, in particular to a fine functional ceramic containing silica nanocrystals and a preparation method thereof. The fine functional ceramics include the following components by weight: 8-10 parts of silicon dioxide nanocrystal powder; 25-30 parts of barium titanate; 8-12 parts of aluminum hydroxide; 45-55 parts of zirconium dioxide; 10-18 parts; 4-8 parts of hexamethyldisilazane; 2-5 parts of concentrated ammonia; 12-18 parts of deionized water. Among them, the surface of silica nanocrystals is modified by hexamethyldisilazane and concentrated ammonia water, so that the surface of silica nanocrystals exists in the form of uneven atomic steps, providing conditions for its surface to connect with other components, thereby Increase the strength of the overall structure of fine functional ceramics, so that fine functional ceramics have better structural strength and longer service life.

Description

Technical field [0001] The present invention relates to the field of ceramic materials, in particular refers to a fine functional ceramic containing silica nanocrystals and a preparation method thereof. Background [0002] Fine functional ceramics, generally refers to the application of the main use of its non-mechanical properties of the material, such materials usually have one or more functions, such as electricity, magnetism, light, heat, chemical, biological, etc.; Some also have coupling functions, such as piezoelectric, piezomagnetic, thermoelectric, electro-optical, acousto-optical, magneto-optical, etc. [0003] Specifically, piezoelectric ceramics, piezoelectric ceramics are an emerging ceramic material, which has a history of more than 100 years of development. In the middle of the last century, the invention of PZT piezoelectric ceramics promoted the rapid development of electronic technology, so that a variety of electronic products appeared in front of us, piezoelec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/488C04B35/622C04B35/63
CPCC04B35/488C04B35/622C04B35/6303C04B2235/3418C04B2235/3236C04B2235/3218C04B2235/3826C04B2235/483C04B2235/602C04B2235/656C04B2235/6567C04B2235/96
Inventor 林贵基林宝明罗桂
Owner FUJIAN HUAXIA VAJRA TECH CO LTD
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