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Zirconium-based composite ceramic material and preparation method thereof and shell or ornament

A technology for composite ceramics and ornaments, applied in the field of zirconium-based composite ceramic materials, can solve the problems of not mentioning the method of simultaneous toughening, narrow application range, blackness of strontium lanthanum manganate, gray, impure and bright, etc. Excellent drop resistance, uniform ceramic substrate, good polishing effect

Inactive Publication Date: 2020-03-27
BYD CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of ceramic can play a part of the toughening effect by doping Mg, but this effect is not obvious
Moreover, the strength of ceramic samples prepared by this method is on the low side, only about 590 MPa, such strength cannot prepare large-area thin slices (easy to break)
In addition, this method is only for white ceramics, and its application range is narrow
[0005] In addition, although various dyeing methods are mentioned in the Chinese patent CN103384652, there is no mention of the method of simultaneous toughening, no description of anti-fall, and no description of polishing effect, so the scope of application is also limited, and it is reported The blackness of strontium lanthanum manganate (LSMO) is grayish, impure and not bright, so it cannot be used as a large-area appearance part

Method used

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  • Zirconium-based composite ceramic material and preparation method thereof and shell or ornament

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preparation example Construction

[0035] The present invention further provides a method for preparing a zirconium-based composite ceramic material. The preparation method comprises the following steps: S1, zirconia, black material, K 2 Ti 6 o 13 Mixing with a binder to form a mixed slurry; S2, drying, molding, and sintering the mixed slurry to form the zirconium-based composite ceramic material, wherein the black material is a material containing A elements and B elements A composite oxide, wherein A is Co, and B is at least one of Fe, Al and Cr.

[0036] In S1 of the above-mentioned preparation method of the present invention, there is no special requirement for the mixing method of various raw materials, just refer to the conventional mixing method in the field. In the present invention, preferably, the step of forming the mixed slurry in S1 includes: S11, combining zirconia, black material and K 2 Ti 6 o 13 Mixing and grinding (preferably ball milling) to form a premix; S12, mixing and grinding (pref...

preparation example 1

[0062] Black material Co(Fe 0.9 Al 0.1 ) 2 o 4 Synthetic method: Mix tricobalt tetroxide, iron oxide and aluminum oxide according to the chemical formula of the color material, and then sinter at 1200°C for 2 hours to obtain a black material; then control the particle size of the color material to about D50=0.3 μm through sand milling, The obtained black material was designated as H1.

preparation example 2

[0064] Black material Co(Fe 0.8 Al 0.2 ) 2 o 4 Synthetic method: Mix tricobalt tetroxide, iron oxide and aluminum oxide according to the chemical formula of the color material, and then sinter at 1200°C for 2 hours to obtain a black material; then control the particle size of the color material to about D50=0.3 μm through sand milling, The obtained black material was designated as H2.

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Abstract

The invention relates to the field of zirconium-based composite ceramic materials, and discloses a zirconium-based composite ceramic material and a preparation method thereof and a shell or an ornament. The zirconium-based composite ceramic material comprises a zirconium oxide matrix, black particles and K2Ti6O13, wherein the black particles and the K2Ti6O13 are dispersed in the zirconium oxide matrix and on the outer surface of the zirconium oxide matrix, the black particles are composite oxides containing an element A and an element B, the element A is Co, and the element B is at least one selected from Fe, Al and Cr. According to the present invention, specific black particles and a grain inhibitor are dispersed in a zirconium-based composite ceramic material and on the outer surface ofthe zirconium-based composite ceramic material, so that the zirconium-based composite ceramic material with characteristics of fine and uniform grain, uniform ceramic matrix, good polishing effect and high strength can be obtained, and the zirconium oxide ceramic with excellent falling resistance and excellent chromaticity can be provided.

Description

technical field [0001] The invention relates to the field of zirconium-based composite ceramic materials, in particular to a zirconium-based composite ceramic material, a preparation method thereof, and a casing or decoration. Background technique [0002] With the high development of science and technology, consumers have higher and higher requirements on the performance and quality of ceramic materials. Zirconia ceramics are widely used due to their better corrosion resistance, higher hardness, and higher strength than other types of ceramics. However, when making large-area appearance parts, although the toughness of existing zirconia ceramics (up to 5-6MPa·m 1 / 2 ) is higher than other types of ceramics, but still has the disadvantage of not being resistant to falling. Moreover, the color of existing zirconia ceramics is usually white, which is too single and not beautiful. Therefore, if you want to use zirconia ceramics to make appearance parts, you need to further im...

Claims

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Application Information

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IPC IPC(8): C04B35/49
CPCC04B35/49C04B2235/3217C04B2235/3225C04B2235/3241C04B2235/3246C04B2235/3272C04B2235/3275C04B2235/656C04B2235/96
Inventor 陈戈张文宇刘金妹林信平
Owner BYD CO LTD