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A kind of red pigment for zirconia ceramics, its preparation method and its application

A technology of zirconia ceramics and a production method, which is applied in the direction of fibrous fillers, etc., can solve the problems of dull color and uneven coloring of ceramics, and achieve the effects of bright red, good color rendering effect, and good color rendering effect

Active Publication Date: 2022-07-19
深圳市丁鼎陶瓷科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The second invention of the present application aims to provide a method for making red pigment for zirconia ceramics, which introduces heterogeneous wrapping technology, and solves the problem of uneven coloring and dull color of ceramics caused by volatilization of red pigment at high temperature

Method used

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  • A kind of red pigment for zirconia ceramics, its preparation method and its application
  • A kind of red pigment for zirconia ceramics, its preparation method and its application
  • A kind of red pigment for zirconia ceramics, its preparation method and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0107] A red colorant for zirconia ceramics, the red colorant in this embodiment only includes a color-developing substance, and the color-developing substance is a powder prepared by compounding according to the following formula:

[0108] xABO 3 +yR 2 O 3 +zC

[0109] Among them, A represents Ba, B represents Ti, and R represents rare earth elements Sm and Y. In the formula of this example, Sm 2 O 3 and Y 2 O 3 The mass ratio of 1:1, C represents MnO 2 ;

[0110] Wherein, x=0.5mol; y=0.04mol; z=0.2mol.

[0111] The red colorant preparation method of the present embodiment is as follows:

[0112] The pretreatment is to remove impurities from the oxide raw material used to make the color-developing substance, and then calcinate after the removal of impurities. After the calcination is completed, it is ground with a mortar. Specifically, the calcination temperature is 600°C, and the calcination time is 1h;

[0113] Batching, ball milling, mixing and drying, the pretre...

Embodiment 2-9

[0116] The red colorant of Examples 2-9 of the present application also only includes color-developing substances, and is roughly the same as the formula and preparation method of the red colorant in Example 1, except that A, B, R, C, The selection and values ​​of x, y, and z are slightly different from those in Example 1, and the specific parameters in the production method are different.

[0117] Wherein, the specific difference of ingredient molecular formula is as follows:

[0118] Table 1

[0119]

[0120] In Table 1, the molar ratio of Sn and Se in Example 2 is 2:1, the molar ratio of Y and La is 1:3, MnO 2 with Al 2 O 3 The molar ratio is 1:1;

[0121] In Table 1, the molar ratio of Mg, Ca and Ba in Example 3 is 1:2:1, the molar ratio of Ho and Dy is 2:3, Cr 2 O 3 with CaF 2 The molar ratio is 1:1;

[0122] In Table 1, the mol ratio of Er and Nd in Example 5 is 1:5;

[0123] In Table 1, the molar ratio of Zn to Sr in Example 6 is 2:1, the molar ratio of Ti t...

Embodiment 10

[0148] A red colorant for zirconia ceramics. The difference between this embodiment and Examples 1-9 is that the red colorant in this embodiment not only includes a color-developing substance, but also includes a high-temperature phase package coated on the surface of the color-developing substance. Coating layer. Correspondingly, in a method for manufacturing a red color material for zirconia ceramics in this embodiment, a heterogeneous coating technology is used to coat the high-temperature phase coating layer on the surface of the color-developing substance.

[0149] Specifically, the present embodiment adopts the color-developing substance of Example 1 to further produce the red colorant by using the heterogeneous wrapping technology, and the heterogeneous wrapping technology specifically includes the following steps:

[0150] Addition of amphoteric surfactant: add the color-developing substance to the aqueous solution containing the amphoteric surfactant, stir to combine t...

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Abstract

The present application relates to a red colorant for zirconia ceramics, a preparation method and application thereof. The red pigment for zirconia ceramics of the present application has the formula of xABO 3 +yR 2 O 3 +zC, this pigment does not contain toxic heavy metals and has bright color. The present application provides a method for producing a red colorant for zirconia ceramics, including the steps of pretreatment, batching, ball milling and mixing, drying, powder pretreatment, heterogeneous coating, and powder posttreatment. One of the cores of the method is to use Heterogeneous encapsulation technology to improve the stability of red pigments under high temperature sintering conditions. The present application provides a red yttrium-stabilized zirconia granulated powder, which is prepared by mixing the aforementioned red pigment and yttrium-stabilized zirconia. The present application also provides red zirconia ceramics obtained by sintering the aforementioned granulated powder and ceramic products obtained by processing.

Description

technical field [0001] The invention relates to the field of ceramics, and more particularly, to a red colorant for zirconia ceramics and a red zirconia ceramic prepared therefrom. Background technique [0002] Ceramics are common materials in the market, and they are mostly found in daily-use porcelain, architectural porcelain, decorative porcelain and other industries. In order to meet the visual needs of different consumers, there are ceramic materials in various colors on the market. Among them, red ceramics are the most popular in the market. A popular ceramic material. [0003] The traditional red ceramics use kaolin and pottery clay as the body materials, and use the on-glaze color technology for coloring. The ceramics of the glaze are heat-treated at a temperature of 500-1000°C. The overall on-glaze color process is relatively simple, and after years of development, the technology is relatively mature. Since the heat treatment is generally lower than 1000 ℃, most g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C1/00C04B35/48C04B35/622
CPCC09C1/0009C04B35/48C04B35/622C04B2235/3225C04B2235/9661C04B2235/602C04B2235/6567C04B2235/658C04B2235/6581C04B2235/6022
Inventor 丁涛石志平
Owner 深圳市丁鼎陶瓷科技有限公司
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