Zirconia ceramic artwork preparation method based on gel casting technology

Abstract

The invention provides a zirconia ceramic artwork preparation method based on a gel casting technology. The zirconia ceramic artwork preparation method comprises the following steps that yttria-stabilized zirconia powder, aluminum oxide powder, silicon nitride powder, a dispersing agent, gel and a demoulding agent are supplied; after ball milling is performed on the yttria-stabilized tetragonal phase zirconia powder, the aluminum oxide powder, the silicon nitride powder, the dispersing agent and an appropriate amount of deionized water, ceramic powder suspended matter is prepared, and the pH of the ceramic powder suspended matter is regulated to 9-10; the ceramic powder suspended matter is preheated; the gel is heated and dissolved to obtain a gel solution, the heated gel solution is immediately added into the preheated ceramic powder suspended matter, and stirring, mixing and defoaming are performed to obtain ceramic slurry; after the side wall of the interior of a mould is coated with the demoulding agent, the ceramic slurry is injected into the mould, standing forming is performed, and after demouding drying is performed, an artwork green body is obtained; the artwork green body is calcined to obtain a zirconia ceramic artwork. According to the preparation method, toxicity generated to the environment and operating personnel can be eliminated.

Description

technical field [0001] The invention relates to the technical field of ceramic gel injection molding, in particular to a method for preparing zirconia ceramic handicrafts based on the gel injection molding process. Background technique [0002] At present, with the rapid development of modern industrial technology, higher requirements are placed on the performance of the required materials. Traditional metal materials are no longer suitable for high-tech fields in terms of hardness, wear resistance, and high temperature resistance. Therefore, many scholars have begun to seek solutions to ceramic materials. Ceramic material is the material with the best rigidity and the highest hardness among engineering materials, and its compressive strength is very high. Moreover, ceramic materials generally have a high melting point, and have good chemical stability in a high-temperature environment, and have good corrosion resistance to acids, alkalis, and salts. Ceramics have low ther...

AI Technical Summary

Problems solved by technology

[0006] However, the traditional gel injection molding process still has the following defects: due to the toxicity of monomeric acrylamide, while ensuring the strength of the green body, it will also pollute the environment and pose a threat to the personal health of operators

In addition, monomeric acrylamide may be affected by oxygen during the polymerization process, causing problems such as cracking or peeling of the green body, and the controllability of the molding process is poor.

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