Co-Zn-Cr-Al composite spinel type blue ceramic pigment and preparation method thereof

A ceramic colorant and spinel-type technology, applied in the field of ceramic color glaze, can solve the problems that ceramic inkjet printing decoration cannot be applied, difficulty in meeting ceramic colorant, and difficulty in batch production, etc., and is conducive to large-scale promotion and application, easy to control and realize, shape controllable effect

Inactive Publication Date: 2013-09-04
JINGDEZHEN CERAMIC INSTITUTE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the sol-gel and precipitation methods are complicated to operate, have a long preparation cycle and low yield, and are difficult to mass-produce; the solid-phase sintering method has a relatively simple preparation process, but the resulting colorant has a large particle size and cannot be applied to ceramic inkjet printing and decoration, etc. technology, it is difficult to meet the needs of the application and development of ceramic pigments

Method used

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  • Co-Zn-Cr-Al composite spinel type blue ceramic pigment and preparation method thereof

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Embodiment 1

[0031] This embodiment (Co 0.5 Zn 0.5 )(Cr 0.5 al 0.5 ) 2 o 4 The preparation method of composite spinel type blue ceramic pigment, its step is as follows:

[0032] (1) according to the parameter in above-mentioned chemical reaction formula and table 1, take by weighing cobalt nitrate, zinc nitrate, chromium nitrate, aluminum nitrate respectively by respective stoichiometric ratio, sucrose is weighed by 150wt% of its stoichiometric ratio, chlorination Na (Co 0.5 Zn 0.5 )(Cr 0.5 al 0.5 ) 2 o 4 50wt% of the theoretical synthesis amount was weighed; each raw material was dissolved in distilled water, and magnetically stirred for 60 minutes to mix evenly, and the Co in the mixed solution 2+ +Zn 2+ The ion concentration is 0.3mol / L;

[0033] (2) Put the above mixed solution in a heat-resistant crucible, ignite and burn it in a muffle furnace at a temperature of 500 ° C, and keep it warm for 10 minutes after burning to obtain a product precursor;

[0034](3) The precur...

Embodiment 2

[0037] This embodiment (Co 0.25 Zn 0.75 )(Cr 0.5 al 0.5 ) 2 o 4 The preparation method of composite spinel type blue ceramic pigment, its step is as follows:

[0038] (1) according to the parameter in above-mentioned chemical reaction formula and table 1, take cobalt nitrate, zinc nitrate, chromium nitrate, aluminum nitrate respectively by respective stoichiometric ratio, sucrose is weighed by its 125wt% by stoichiometric ratio, chlorine NaCl (Co 0.25 Zn 0.75 )(Cr 0.5 al 0.5 ) 2 o 4 30wt% of the theoretical synthesis amount was weighed; each raw material was dissolved in distilled water, and magnetically stirred for 45 minutes to mix evenly, and the Co in the mixed solution 2+ +Zn 2+ The ion concentration is 0.4mol / L;

[0039] (2) Put the above mixed solution in a heat-resistant crucible, ignite and burn it in a muffle furnace at a temperature of 400 ° C, and keep it warm for 15 minutes after burning to obtain a product precursor;

[0040] (3) The above-mentioned...

Embodiment 3

[0043] This embodiment (Co 1 / 3 Zn 2 / 3 )(Cr 0.5 al 0.5 ) 2 o 4 The preparation method of composite spinel type blue ceramic pigment differs from embodiment one in that:

[0044] In step (1), each raw material is dissolved in distilled water, and magnetically stirred for 30 minutes to mix evenly, and in the mixed solution

[0045] co 2+ +Zn 2+ The ion concentration is constant at 0.5mol / L;

[0046] In step (3), the product precursor is calcined at a temperature of 1150° C., kept for 60 minutes, and cooled with the furnace to obtain the product.

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Abstract

The invention discloses a Co-Zn-Cr-Al composite spinel type blue ceramic pigment which is expressed by a general formula (CoxZn1-x)(CryAl1-y)2O4, wherein x and y represents mole fractions; x is 0-1; y is 0-1; and when x and y are different in value, the products are different in color. Besides, the invention also discloses a preparation method of the Co-Zn-Cr-Al composite spinel type blue ceramic pigment. The ceramic pigment disclosed by the invention is small in particle size and uniform in distribution, has high coloration capability in glaze, and is high in coloration stability. Besides, the ceramic pigment is simple in preparation process and controllable in color and shape, and can meet different application requirements; and the whole process is easy to control and realize, and the product quality is stable, thereby being beneficial to large-scale popularization and application.

Description

technical field [0001] The invention relates to the technical field of ceramic color glazes, in particular to a Co-Zn-Cr-Al composite spinel-type blue ceramic color material and a preparation method thereof. Background technique [0002] Ceramic pigment refers to the "coloring material" used in ceramic production, covering various concepts such as colorant (colorant), color base, pigment, color material and color material, and is used to decorate ceramic products. According to phase and structure analysis, these coloring materials are coloring minerals with certain transition metals, rare earth metals or other metals as color elements and certain mineral crystal forms as color matrix. The common types of ceramic pigments mainly include: simple compound type, solid solution-oxide type, spinel type, silicate type and mixed isomorphic type. [0003] The use of ceramic pigments began as far back as the late Neolithic Age in my country. At that time, the red color on colored pot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/86
Inventor 刘欣李家科程凯
Owner JINGDEZHEN CERAMIC INSTITUTE
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