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High-strength electro-technical ceramic and preparation method thereof

A high-strength technology for electrical ceramics, applied in the field of dielectric ceramics, can solve problems such as small resistivity, low mechanical strength, and unsatisfactory, and achieve the effects of high resistivity, wide application fields, and high compressive strength

Inactive Publication Date: 2017-10-10
HEFEI ANLI ELECTRIC POWER ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the development of electronic information is getting faster and faster, and the requirements for electronic components are getting higher and higher. Miniaturization, thin film, multi-function, etc. have become the direction of future development. However, the current electronic ceramic materials have low mechanical strength and low resistivity. problems, unable to meet the requirements of the market and the actual production process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A high-strength electrical ceramic, the following raw materials were weighed for use: 20kg of alumina, 10kg of vanadium nitride, 10kg of silicon carbide fiber, 20kg of coated fluoroapatite powder, 4kg of diyttrium trioxide, 5kg of titanium dioxide, 10kg of zinc oxide, three Nickel oxide 5kg, phosphorus pentoxide 4kg, barium tetratitanate 4kg, aluminum isopropoxide 3kg, tin oxide 2kg, polyethylene wax 1kg, calcium stannate 1kg and binder 1kg;

[0023] The above-mentioned coated fluorapatite powder is prepared by the following steps: first take 20kg of fluorapatite and disperse it by ball milling with alcohol for 4 hours, dry the obtained slurry and roast it at 380°C for 2 hours, and then add equivalent 1% ammonium stearate by weight, 2% coconut oil fatty acid diethanolamide and 10% deionized water, ultrasonically oscillated for 20 minutes, then stirred in a constant temperature water bath at 65°C for 40 minutes to obtain a modified compound mixture; Add Al(NO) equivalent...

Embodiment 2

[0032] A high-strength electrical ceramic, the following raw materials were weighed for use: 25kg of alumina, 15kg of vanadium nitride, 15kg of silicon carbide fiber, 25kg of coated fluoroapatite powder, 6kg of diyttrium trioxide, 10kg of titanium dioxide, 15kg of zinc oxide, three Nickel oxide 10kg, phosphorus pentoxide 6kg, barium tetratitanate 5kg, aluminum isopropoxide 4kg, tin oxide 3kg, polyethylene wax 2kg, calcium stannate 3kg and binder 3kg;

[0033] The above-mentioned coated fluorapatite powder is prepared by the following steps: first take 25kg of fluorapatite and disperse it by ball milling with alcohol for 5 hours, dry the obtained slurry and roast it at 400°C for 2.5 hours, and then add it after cooling to room temperature Ammonium stearate equivalent to 2% by weight, 3% coconut oil fatty acid diethanolamide and 15% deionized water, after ultrasonic vibration for 25 minutes, then stirred in a constant temperature water bath at 70°C for 45 minutes to obtain a modi...

Embodiment 3

[0042] A high-strength electrical ceramic, the following raw materials were weighed for later use: 30kg of alumina, 20kg of vanadium nitride, 20kg of silicon carbide fiber, 30kg of coated fluoroapatite powder, 8kg of diyttrium trioxide, 15kg of titanium dioxide, 20kg of zinc oxide, three Nickel oxide 15kg, phosphorus pentoxide 8kg, barium tetratitanate 6kg, aluminum isopropoxide 5kg, tin oxide 4kg, polyethylene wax 3kg, calcium stannate 5kg and binder 5kg;

[0043] The above-mentioned coated fluorapatite powder is prepared by the following steps: first take 30kg of fluorapatite and disperse it by ball milling with alcohol for 6h; 3% by weight of ammonium stearate, 4% coconut oil fatty acid diethanolamide, and 20% deionized water, ultrasonically oscillated for 30 minutes, and stirred in a constant temperature water bath at 75°C for 50 minutes to obtain a modified compound mixture; Add Al(NO) equivalent to 25% by weight and 25% mass concentration in the modified compound liquid ...

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PUM

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Abstract

The invention discloses a high-strength electro-technical ceramic and a preparation method thereof and relates to the technical field of dielectric ceramics. The electro-technical ceramic comprises the following raw materials: aluminum oxide, vanadium nitride, silicon carbide fiber, enveloped fluorapatite powder, yttria, titanium dioxide, zinc oxide, nickel oxide, phosphorus pentoxide, barium titanate, aluminum isopropoxide, stannic oxide, polyethylene wax, calcium stannate and a binder. The preparation method comprises the following steps: crushing the raw materials, adding water, dispersing and uniformly mixing, curing, drying, preheating and sintering. The electro-technical ceramic is low in production cost, has the characteristics of high fracture resistance, tensile strength and compressive strength, high specific resistance and small capacitance temperature variation rate, can be applied to extensive fields, can solve the problems in the prior art, and can meet the requirements in markets and practical production processes.

Description

technical field [0001] The invention relates to the technical field of dielectric ceramics, in particular to a high-strength electrical ceramic and a preparation method thereof. Background technique [0002] Electrical ceramic materials mainly refer to a class of ceramics with electromagnetic and other functions. Its dielectric properties and electrical conductivity can be adjusted in a wide range. It is one of the most dynamic materials among special ceramic materials and has attracted widespread attention. It can be applied in many fields such as electronics, communication, automatic control, information computer, automobile, aviation, etc., and has significant social and economic benefits. At present, the development of electronic information is getting faster and faster, and the requirements for electronic components are getting higher and higher. Miniaturization, thin film, multi-function, etc. have become the direction of future development. However, the current electr...

Claims

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Application Information

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IPC IPC(8): C04B35/10
CPCC04B35/10C04B2235/3212C04B2235/3225C04B2235/3232C04B2235/3236C04B2235/3279C04B2235/3284C04B2235/3293C04B2235/34C04B2235/3886C04B2235/441C04B2235/442C04B2235/443C04B2235/5244C04B2235/5427C04B2235/5463C04B2235/6022C04B2235/606C04B2235/656C04B2235/6567C04B2235/96
Inventor 殷世尧
Owner HEFEI ANLI ELECTRIC POWER ENG CO LTD