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High-temperature-resistant purple rare-earth ceramic pigment and preparation method thereof

A ceramic pigment and high temperature resistant technology, applied in chemical instruments and methods, fibrous fillers, inorganic pigment treatment, etc. problems, to achieve the effect of high artistic aesthetic value, luster and smooth, high practical application value

Inactive Publication Date: 2018-08-03
BAOTOU RARE EARTH RES & DEV CENT CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many kinds of colors of low-temperature pigments. However, because each pigment has a limit use temperature, when the temperature exceeds this temperature, the crystal structure of the pigment is in an unstable state, and it is easy to be melted or react with other substances and cannot be used. It presents a pure color. Therefore, there are relatively few pigments with stable color at high temperature, and there is a natural lack of color types. Purple ceramic pigments have always been very difficult to fire, and the color development effect is not ideal and stable.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment provides a kind of high temperature resistant purple rare earth ceramic pigment, the molecular formula is NdAlO 3 ·Y 0.5 ErAlO 3， The high temperature resistant purple rare earth ceramic pigment is prepared by the following method:

[0026] (1) Take by weighing 336.40g industrial neodymium oxide (purity≧95%), 382.52g industrial erbium oxide (purity≧95%) and 112.91g yttrium oxide (purity≧95%), fully mix uniformly, obtain mixed oxide; Add 16.64g of concentrated nitric acid with a mass concentration of 65% to the mixed oxide, then add 1663.66g of water, use a ceramic ball mill for wet grinding for 2 hours, and mix well to obtain slurry A;

[0027] (2) Weigh 203.92g of aluminum oxide and 8.16g of sodium dodecylbenzenesulfonate and mix them uniformly, add them into the slurry A, mix them well, and prepare the slurry B;

[0028] (3) drying the slurry B at 80°C for 6 hours to obtain a dried material;

[0029] (4) In the dry material, add a composite mineral...

Embodiment 2

[0032] This embodiment provides a kind of high temperature resistant purple rare earth ceramic pigment, the molecular formula is NdAlO 3 ·Y 0.5 ErAlO 3， The high temperature resistant purple rare earth ceramic pigment is prepared by the following method:

[0033] (1) Take by weighing 336.40g industrial neodymium oxide (purity≧95%), 382.52g industrial erbium oxide (purity≧95%) and 112.91g yttrium oxide (purity≧95%), fully mix uniformly, obtain mixed oxide; Add 66.55 g of concentrated nitric acid with a mass concentration of 75% to the mixed oxide, then add 4159.15 g of water, use a ceramic ball mill to wet grind for 5 hours, and mix well to obtain slurry A;

[0034] (2) Weigh 203.92g alumina and 12.24g sodium pyrophosphate and mix uniformly, join in the slurry A, fully mix uniformly, make slurry B;

[0035] (3) drying the slurry B at 120° C. for 2 hours to obtain a dry material;

[0036] (4) In the dry material, add a composite mineralizer accounting for 10% of the dry mate...

Embodiment 3

[0039] This embodiment provides a kind of high temperature resistant purple rare earth ceramic pigment, the molecular formula is NdAlO 3 ·Y 0.5 ErAlO 3， The high temperature resistant purple rare earth ceramic pigment is prepared by the following method:

[0040] (1) Take by weighing 336.40g industrial neodymium oxide (purity≧95%), 382.52g industrial erbium oxide (purity≧95%) and 112.91g yttrium oxide (purity≧95%), fully mix uniformly, obtain mixed oxide; Add 49.91g of concentrated nitric acid with a mass concentration of 70% to the mixed oxide, then add 2495.49g of water, use a ceramic ball mill for wet grinding for 3 hours, and mix well to obtain slurry A;

[0041] (2) Weigh 203.92g of alumina and 10.2g of sodium pyrophosphate and mix them uniformly, add them into the slurry A, fully mix them uniformly, and prepare the slurry B;

[0042] (3) drying the slurry B at 100°C for 4 hours to obtain a dry material;

[0043] (4) In the dry material, add a composite mineralizer ac...

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Abstract

The invention relates to a high-temperature-resistant purple rare-earth ceramic pigment and a preparation method thereof. The high-temperature-resistant purple rare-earth ceramic pigment with the molecular formula of NdAlO3.Y0.5ErAlO3 is prepared from raw materials including industrial neodymium oxide, erbium oxide, yttrium oxide and aluminum oxide, has pure and uniform color and can resist high temperatures. In the ceramic pigment, rare earth elements including neodymium, erbium and yttrium act with an aluminum element, the color effect produced through high-temperature firing is combined with a ceramic material, the very natural artistic texture effect is obtained, and the artistic aesthetic value is very high. Prepared glaze has glossy and bright glaze surface and can reduce cracks. Various tableware, tea sets and other daily products prepared from rare-earth ceramic have jade-like soft and glossy appearance and show nobleness and taste. Besides, the purple rare-earth ceramic pigment has a remarkable color effect, stable performance and very high practical application value after applied to ceramic artworks.

Description

technical field [0001] The invention belongs to the technical field of ceramic pigments, in particular to a high-temperature-resistant purple rare earth ceramic pigment and a preparation method thereof. Background technique [0002] Ceramic glaze is an important raw material that must be used in the production of ceramics. It has a strong protective effect on the ceramic body. At the same time, the physical properties of silicate make the glass enamel on the ceramic surface effectively resistant to acid and alkali corrosion. Very good antibacterial properties. Ordinary ceramic color glazes add ceramic pigments to the glass enamel to achieve color development during the firing process. The existing ceramic pigments are often single in color, which cannot highlight the artistic beauty and high temperature of the ceramic color glaze itself. The special artistic effect produced during the firing process. [0003] High-temperature colorants refer to colorants whose use temperat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/00C09C3/06C09C3/08C09C3/04
CPCC09C1/0009C09C3/006
Inventor 徐高天周效梁磊
Owner BAOTOU RARE EARTH RES & DEV CENT CHINESE ACADEMY OF SCI
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