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A kind of ceramic powder and its application

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 microstructure, reducing sintering temperature, and increasing the optimal value of detection rate.

Active Publication Date: 2022-05-10
深圳市科思飞科技有限公司
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  • Summary
  • 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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  • A kind of ceramic powder and its application
  • A kind of ceramic powder and its application
  • A kind of ceramic powder and its application

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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 0.75 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 0.75 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 present invention disclosed a ceramic powder and its purpose, which belongs to the field of new functional ceramic materials. The chemical formula of ceramic powder is BA (1‑x) Sr x TIO 3 , X is the Moore of SR, and the range of X is 0 <x ≤0.5, which is a ceramic powder with high dielectric constant and low dielectric loss; ceramic powder doped and oxidized.The dielectric constant and extremely low dielectric loss are beneficial to increasing the detection rate of infrared detectors, which can be used to prepare infrared detectors; doped cadmium oxide and compound INSMO 3 Ceramic powder has high dielectric constants, low dielectric loss, good temperature capacity and good pressure resistance, which can be used to prepare high media composite materials; doped aerobic ingredients and MGGEO 3 Ceramic powder can enhance the reinforcement effect of silicon rubber, improve the flame retardant of silicon rubber, and improve the porcelain effect of silicon rubber. It can be used to prepare flame retardant silicon 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 Patents(China)
IPC IPC(8): C04B35/468C04B35/626C08L23/12C08K3/00C08K9/04C08L83/04C08K13/06C08K9/06C08K13/02
CPCC04B35/468C04B2235/3224C04B2235/96C04B35/622C04B2235/3213C04B2235/3294C04B2235/447C04B2235/6567C04B2235/661
Inventor 罗兵
Owner 深圳市科思飞科技有限公司
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