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Preparation method of conductive ceramic material

A technology of conductive ceramic material and tin dioxide is applied in the field of preparation of conductive ceramic material and can solve the problems of high preparation temperature, high manufacturing cost, complicated manufacturing process and the like

Inactive Publication Date: 2015-01-28
QINGDAO KANGHEWEIYE COMML
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The application of ceramic materials is very extensive, and it is of a great variety, wherein the most famous in the field of electronic devices is conductive ceramic materials, conductive ceramic materials have been widely reported in the prior art, but in the preparation process of these conductive ceramic materials need Add a small amount of other auxiliary materials to obtain specific properties, and the preparation method in the prior art has high preparation temperature, complicated manufacturing process, and high manufacturing cost. It is urgent to provide a conductive ceramic material with simple process and low cost Preparation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0006] The preparation method of this conductive ceramic material, first carries out ball milling 30 hours with pure tin dioxide, wherein tin dioxide: ball: water is 2:4:1, then carries out drying and 500 mesh sieve treatment, then according to tin dioxide , copper oxide, aluminum oxide, iron oxide, zinc oxide, cobalt oxide, lead oxide, magnesium oxide, and nickel oxide in a weight ratio of 86%: 0.5%: 1%: 2%: 0.5%: 1 %: 2%: 4%: 3% of the ingredients are mixed, after grinding the above ingredients for 3 hours, adding 5wt% PVA aqueous solution for granulation, passing through a 70 mesh sieve and drying treatment, and then extruding with a pressure of 5 tons Shaped, then put it into a sintering furnace for sintering in an oxidizing atmosphere at a firing temperature of 1600°C, then keep it warm for 4 hours and then cool naturally.

Embodiment 2

[0008] The preparation method of this conductive ceramic material, first carries out ball milling 40 hours with pure tin dioxide, wherein tin dioxide: ball: water is 2:4:1, then carries out drying and 500 mesh sieve treatment, then according to tin dioxide , copper oxide, aluminum oxide, iron oxide, zinc oxide, cobalt oxide, lead oxide, magnesium oxide, and nickel oxide in a weight ratio of 96%: 0%: 0.5%: 0.5%: 0%: 0 %: 0.5%: 2%: 0.5% Mix the ingredients, grind the above ingredients for 5 hours, add 15wt% PVA aqueous solution to granulate, pass through a 90-mesh sieve and dry, then extrude with a pressure of 8 tons, and then Put it into a sintering furnace for sintering in an oxidizing atmosphere at a firing temperature of 1800°C, then keep it warm for 8 hours and then cool it down naturally.

Embodiment 3

[0010] The preparation method of this conductive ceramic material, first carries out ball milling 35 hours with pure tin dioxide, wherein tin dioxide: ball: water is 2:4:1, then carries out drying and 500 mesh sieve treatment, then according to tin dioxide , copper oxide, aluminum oxide, iron oxide, zinc oxide, cobalt oxide, lead oxide, magnesium oxide, and nickel oxide in a weight ratio of 91%: 0.3%: 0.7%: 1%: 0.2%: 0.8 %: 1.5%: 3%: 1.5% Mixed ingredients, after grinding the above ingredients for 4 hours, add 10wt% PVA aqueous solution to granulate, pass through a 75 mesh sieve and dry, then extrude with a pressure of 6 tons, and then Put it into a sintering furnace for sintering in an oxidizing atmosphere at a firing temperature of 1700°C, then keep it warm for 6 hours and then cool naturally.

[0011] The conductive ceramic material prepared by the above method has strong temperature resistance, improved conductive efficiency, and extended service life, and has obtained goo...

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Abstract

The invention provides a preparation method of a conductive ceramic material. The material is prepared from the following components: stannic oxide, copper oxide, aluminum oxide, iron sesquioxide, zinc oxide, cobaltous oxide, lead oxide, magnesium oxide and nickel sesquioxide in a weight ratio of (86-96%) to (0-0.5%) to (0.5-1%) to (0.5-2%) to (0-0.5%) to (0-1%) to (0.5-2%) to (2-4%) to (0.5-3%). The preparation method is characterized by comprising the following steps: firstly, ball-milling pure stannic oxide for 30-40 hours, wherein the ratio of stannic oxide to balls to water is 2 to 4 to 1; then, drying and carrying out treatment by a 500mesh sieve; then, mixing and dosing according to components; grinding the components for 3-5 hours; adding a 5-15wt% PVA aqueous solution to prill, sieving by a 70-90mesh sieve and drying; then, extrusion-forming by 5-8 tons of pressures; then, putting in a sintering furnace to be sintered in an oxidizing atmosphere at the sintering temperature of 1600-1800 DEG C; and then insulating for 4-8 hours and naturally cooling.

Description

technical field [0001] The invention relates to a preparation method of a ceramic material, in particular to a preparation method of a conductive ceramic material. Background technique [0002] The application of ceramic materials is very extensive, and it is of a great variety, wherein the most famous in the field of electronic devices is conductive ceramic materials, conductive ceramic materials have been widely reported in the prior art, but in the preparation process of these conductive ceramic materials need Add a small amount of other auxiliary materials to obtain specific properties, and the preparation method in the prior art has high preparation temperature, complicated manufacturing process, and high manufacturing cost. It is urgent to provide a conductive ceramic material with simple process and low cost Preparation. Contents of the invention [0003] The invention provides a method for preparing a conductive ceramic material. The weight ratio of the material i...

Claims

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Application Information

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IPC IPC(8): C04B35/457C04B35/622
CPCC04B35/457C04B35/6261C04B35/63416C04B2235/3206C04B2235/3217C04B2235/3272C04B2235/3275C04B2235/3279C04B2235/3281C04B2235/3284C04B2235/3296C04B2235/6567C04B2235/658
Inventor 王玉静刘永祥
Owner QINGDAO KANGHEWEIYE COMML
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