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Zirconium oxide composite ceramic and preparation method thereof

A composite ceramic and zirconia technology, applied in the field of zirconia composite ceramics and its preparation, can solve the problems of reducing the mechanical properties of the ceramic body and increasing the impurity content of the ceramic matrix, so as to avoid the formation of unsafe rapid discharge, improve the mechanical properties, Evenly distributed effect

Inactive Publication Date: 2016-11-23
SHENZHEN SUNTECH ADVANCED CERAMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Since the current antistatic ceramic materials are prepared by physically mixing the ceramic matrix + conductive phase powder, it is necessary to add more conductive phases (generally 20% to 40% by mass fraction) to achieve the required resistance. rate, which undoubtedly greatly increases the impurity content of the ceramic matrix and reduces the mechanical properties of the ceramic body itself.

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  • Zirconium oxide composite ceramic and preparation method thereof

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preparation example Construction

[0034] The preparation method of the above-mentioned zirconia composite ceramics comprises the following steps:

[0035] Step S110, providing a zirconium oxychloride solution and a metal ion solution corresponding to the conductive material according to the amount of the zirconia matrix and the conductive material in the zirconia composite ceramic, and combining them to obtain a mother liquor.

[0036] Preferably, the concentration of the zirconium oxychloride solution is 80-85 g / L.

[0037] If the conductive material is a non-ferrous metal oxide or a white metal oxide, weigh the corresponding amount of metal oxide and dissolve it with nitric acid to form a metal ion solution with a concentration of 0.4mol / L-0.6mol / L.

[0038] If the conductive material is a compound with a titanium ore structure and a compound with a spinel structure, the amount of the conductive material is converted into the amount of the corresponding metal oxide, and then the corresponding metal oxide is ...

Embodiment 1

[0066] A zirconia composite ceramic comprises the following components in mass fraction:

[0067] Zirconia 76％ Yttrium oxide 4％ Ferric oxide 1％ Nickel oxide 7％ Chromium trioxide 2％ Nano alumina 10％

[0068] The preparation method of the above-mentioned zirconia composite ceramics comprises the following steps:

[0069] Step 1: According to the mass ratio of zirconia in the table, the mass ratio of zirconium oxychloride is converted into the mass ratio of zirconium oxychloride according to the molar ratio, and the aqueous solution of 80g / L is prepared; then Y is weighed according to the mass ratio 2 o 3 And ferric oxide, nickel oxide, chromium oxide, and then dissolved with nitric acid, respectively dubbed 0.4mol / L nitrate solution. Finally, add the weighed solutions of each substance into the reaction kettle, and stir evenly to form a mother liquor.

[0070] Step 2: reacting and precipitating by co-precipitation method. Add deion...

Embodiment 2

[0078] An antistatic zirconia ceramic comprises the following components in mass fraction:

[0079] Zirconia 70％ Yttrium oxide 5％ LaSr 0.1 Cr 0.9 o 3 20％ Nano Zirconia 5％

[0080] The preparation method of the above-mentioned zirconia composite ceramics comprises the following steps:

[0081] Step 1: According to the mass ratio of zirconia in the table, the mass ratio of zirconium oxychloride is converted into 82g / L aqueous solution by molar ratio; 0.1 Cr 0.9 o 3 Convert the mass ratio to the molar ratio, and then convert it to the mass ratio of the precursor oxides lanthanum oxide, strontium oxide, and chromium oxide, and then dissolve several oxides and yttrium oxide with nitric acid to prepare 0.5mol / L nitrate solution. Finally, add the weighed solutions of each substance into the reaction kettle, and stir evenly to form a mother liquor.

[0082] Step 2: reacting and precipitating by co-precipitation method. Add deionized water to...

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Abstract

The invention relates to a zirconium oxide composite ceramic and a preparation method thereof. The zirconium oxide composite ceramic is prepared from, by mass, 65%-80% of a zirconium oxide matrix, 10%-30% of a conducting material and 2%-11% of a nanometer reinforcing material; the conducting material is selected from at least one of a non-ferrous metal oxide, a white metal oxide, a compound with a titanium structure and a compound with a spinel structure, wherein the non-ferrous metal oxide is selected from at least one of CuO, Cu2O, V2O5, NiO, MnO, MnO2, CoO, Co2O3, Co3O4, Fe2O3, FeO, Fe3O4 and Cr2O3, and the white oxide is selected from at least one of ZnO, SnO2 and TiO2; the compound with the titanium structure is selected from at least one of CaTiO3, BaTiO3, LaCrO3, LaSr(0.1)Cr(0.9)O3, SrTiO3 and LaFeO3, and the structural formula of the compound with the spinel structure is AB2O4, wherein A is selected from at least one of Mg, Fe, Zn and Mn, and B is selected from at least one of Al, Cr and Fe. The zirconium oxide composite ceramic is excellent in antistatic property and high in mechanical property.

Description

technical field [0001] The invention relates to a zirconia composite ceramic and a preparation method thereof. Background technique [0002] When two objects rub against each other, the electrons in one object are weakly bound by the nucleus and go to the other object, so that the object receiving electrons appears negatively charged because it has more negative charges than positive charges; Objects that have lost electrons appear to be positively charged because they have more positive charges than negative charges, which is the phenomenon of triboelectrification. The electricity carried by the object is called "static electricity", and when it accumulates to a certain extent, electrostatic discharge will occur. In today's growing electronic industry era, various microelectronic and optoelectronic components are widely used, and electrostatic discharge can damage electronic components, change the electrical properties of semiconductor components, destroy electronic system...

Claims

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Application Information

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IPC IPC(8): C04B35/48C04B35/622
Inventor 杨辉谭毅成向其军
Owner SHENZHEN SUNTECH ADVANCED CERAMICS
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