Ceramic powder and application thereof

A technology of ceramic powder and general formula, applied in the field of ceramic powder, can solve the problem that it is difficult to meet the requirements of high-end electronic equipment, and achieve the effects of improving sintering and organizational structure, reducing dielectric loss and increasing dielectric constant.

Pending Publication Date: 2022-05-13
SHENZHEN KESIFEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But pure Ba 1-x Sr x TiO 3 The dielectric constant of ceramics will change greatly with temperature, which is difficult to meet the requirements of high-end electronic complete machines

Method used

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  • Ceramic powder and application thereof
  • Ceramic powder and application thereof
  • Ceramic powder and application thereof

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preparation example Construction

[0047] One embodiment of the present invention also provides a preparation method of ceramic powder, comprising: using a solid phase method to synthesize barium strontium titanate ceramic powder, ball milling barium carbonate, strontium carbonate, and titanium dioxide, and sintering to obtain barium strontium titanate ceramic powder . In the preparation method of this embodiment, the barium strontium titanate ceramic powder is synthesized by a solid-state method, and the prepared ceramic powder has a higher constant and a lower dielectric loss.

[0048] In one embodiment of the present invention, a method for preparing ceramic powder doped with lutetium oxide and scandium oxide includes:

[0049] --Weigh barium carbonate, strontium carbonate and titanium dioxide in proportion, ball mill for 24-48 hours, and sinter at 950-1100°C for 2-5 hours to obtain barium strontium titanate ceramic powder;

[0050] --The barium strontium titanate ceramic powder, lutetium oxide and scandium...

Embodiment 1

[0075] A kind of ceramic powder, its general chemical formula is Ba 0.15 Sr 0.25 TiO 3 , and its preparation method comprises: weighing barium carbonate, strontium carbonate and titanium dioxide in proportion, ball milling for 24 hours, and sintering at 1000° C. for 4 hours to obtain barium strontium titanate ceramic powder.

Embodiment 2

[0077] A kind of ceramic powder, it is Ba doped with 0.1mol% lutetium oxide and 0.016mol% scandium oxide 0.15 Sr 0.25 TiO 3 Ceramic powder, its preparation method, comprises:

[0078] --Weigh barium carbonate, strontium carbonate and titanium dioxide in proportion, ball mill for 24 hours, and sinter at 1000°C for 4 hours to obtain barium strontium titanate ceramic powder;

[0079] --Ball-mill the barium strontium titanate ceramic powder, lutetium oxide and scandium oxide for 24 hours for the second time, and sinter for 3 hours at 1440°C to obtain the ceramic powder.

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Abstract

The invention discloses ceramic powder and application thereof, and belongs to the field of novel functional ceramic materials, the chemical general formula of the ceramic powder is Ba (1-x) SrxTiO3, x is the mole number of Sr, and the range of x is 0 lt; x is less than or equal to 0.5, and the ceramic powder is high in dielectric constant and low in dielectric loss; the ceramic powder doped with the lutetium oxide and the scandium oxide has a low dielectric constant and extremely low dielectric loss, is beneficial for increasing the merit figure of the detection rate of the infrared detector, and can be used for preparing the infrared detector; the ceramic powder doped with the cadmium oxide and the compound InSmO3 is high in dielectric constant, low in dielectric loss and good in temperature resistance and compression strength, and can be used for preparing a high-dielectric composite material; the ceramic powder doped with cesium oxide and MgGeO3 can enhance the reinforcing effect on the silicone rubber, improve the flame retardance of the silicone rubber and improve the ceramic forming effect of the silicone rubber, and can be used for preparing the flame-retardant silicone rubber.

Description

technical field [0001] The invention belongs to the field of novel functional ceramic materials, and in particular relates to a ceramic powder and its application. Background technique [0002] The development history of ceramics is a microcosm of the history of human civilization. When modern people study ancient history, the ceramics left over from various periods are the most valuable clues. When ceramics, an ancient craft, developed into ceramic science, it became a subject that can have a significant impact on our lives. For more than half a century, with the research and development of ceramic materials, ceramics can be found in various fields closely related to human life, such as electronics, communications, energy, transportation, space exploration and national security. It can be said that the life of modern people is inseparable from ceramics, and the progress of ceramics brings to human beings the ever-changing lifestyle. Among them, the barium strontium titana...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/468C04B35/626C08K3/24C08K3/22C08L83/04
CPCC04B35/468C04B2235/3224C04B2235/96C04B35/622C04B2235/3213C04B2235/3294C04B2235/447C04B2235/6567C04B2235/661
Inventor 罗兵
Owner SHENZHEN KESIFEI TECH CO LTD
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