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Preparation method of pink zirconia ceramic

A zirconia ceramic, pink technology, applied in the field of preparation of pink zirconia ceramics, can solve the problems of high energy consumption, high mold material requirements, rising production costs, etc., to achieve simple and easy-to-use preparation process and low production process cost , cost reduction effect

Inactive Publication Date: 2015-06-03
GUANGDONG JANUS SMART GRP CO LTD +1
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Problems solved by technology

However, adopting this method to prepare colored zirconia ceramics has high requirements on the performance of the sintering furnace, and the hot-pressing sintering process and equipment are complicated, the production control requirements are very strict, the mold material requirements are high, the energy consumption is large, and the production efficiency is low, which leads to production failure. The cost has risen sharply, so this method is not suitable for the relatively cheap civilian ceramic decoration market

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  • Preparation method of pink zirconia ceramic

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example

[0036] Weigh 20 grams of polyvinyl alcohol and dissolve it in 1000 grams of water, pour it into a 5L ball mill jar after fully dissolving, add 1000 grams of yttria-containing stabilized tetragonal zirconia powder (purity is 99%, average particle size is 0.5 μm) and 50 After 24 hours of ball milling, pour out the suspension, dry and remove the moisture, grind the ceramic powder and pass through a 500-mesh sieve, and dry press and cold isostatic press to prepare a product with a diameter of 28 mm and a thickness of 8 mm zirconia round cake. Then put it into a high-temperature sintering furnace to remove the glue and sinter it into a pink zirconia ceramic product.

[0037] The debinding and sintering integrated process segment can be expressed as:

[0038]

[0039] The fired zirconia ceramic products are tested experimentally, among which, the Archimedes principle is used to detect the density, the microhardness tester is used to test the Vickers hardness of the material, the...

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Abstract

The invention relates to a preparation method of pink zirconia ceramic. The preparation method comprises the following steps: with zirconia powder as a raw material of a ceramic matrix, adding erbium oxide powder to the zirconia powder to be used as a colorant and adding a binder to form a mixed material; preparing a ceramic body by using the mixed material; and carrying out multi-stage sintering treatment on the ceramic body to obtain a pink zirconia ceramic product, wherein the multi-stage sintering treatment at least comprises the following stages: firstly sintering for 7-9h at the temperature of room temperature to 600 DEG C, then sintering for 4-8h at the temperature of 600 DEG C-1200 DEG C, and then sintering for 6-8h at the temperature of 1200 DEG C-1500 DEG C. By utilizing the preparation method of the pink zirconia ceramic, zirconia can be stably colored to pink by pigment on premise of ensuring complete compactness of sintering of zirconia, and low manufacturing cost is maintained simultaneously.

Description

technical field [0001] The invention relates to a preparation method of pink zirconia ceramics. Background technique [0002] Zirconia ceramic is a very important structural ceramic material. It has very excellent mechanical properties, with a bending strength of up to 1000MPa and a fracture toughness of up to 10MPa m1 / 2. It has the reputation of ceramic steel, so it is widely used in industrial machinery and daily life. have more and more widespread applications. [0003] Zirconia ceramic products for civilian use often require beautiful appearance, such as color, luster, etc.; but the ceramic products sintered from pure zirconia powder are white, and a single color is difficult to meet people's growing demand for zirconia ceramic decorations. Therefore, it is imperative to develop zirconia ceramic products of different colors. [0004] However, since the sintering temperature of zirconia materials used as structural ceramics is generally higher than 1400°C, and the high-...

Claims

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Application Information

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IPC IPC(8): C04B35/48C04B35/64
Inventor 钟辉
Owner GUANGDONG JANUS SMART GRP CO LTD
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