Integrated gel-casting manufacturing method of high-temperature ceramic material dot matrix laminboard

Abstract

The invention discloses an integrated gel-casting manufacturing method of a high-temperature ceramic material dot matrix laminboard. A novel combined mold is manufactured; acetone liquid is used for cleaning the surface of the combined mold, and release agents are used for coating the surface of the combined mold; ceramic slurry is manufactured through the combined mold; gel-casting is used for integrally manufacturing the high-temperature ceramic material dot matrix laminboard; demolding is performed, and a green high-temperature ceramic material dot matrix laminboard body of a corrugated plate structure is obtained; freeze drying is performed, and the ceramic dot matrix laminboard with a certain green body strength is obtained; non-pressure sintering is finally performed, and after the ceramic dot matrix laminboard is cooled to the room temperature, the high-temperature ceramic dot matrix laminboard is obtained. The gel-casting integrated manufacturing method can be adopted, and high-temperature ceramic materials such as ZrO2 are used as parent materials to manufacture the dot matrix laminboard. The integrated gel-casting manufacturing method can be widely applied to the environment under the temperature of above 1000 DEG C. Integral forming is adopted, a panel and a core of the laminboard do not have other connection manners, the better connection strength is achieved, and the whole laminboard has the better mechanical property.

Description

technical field [0001] The invention relates to an integrated gel injection molding preparation method of a high-temperature ceramic material lattice sandwich panel. Background technique [0002] The existing metal material lattice sandwich structure and fiber-reinforced composite material lattice sandwich structure are prone to oxidation failure at high temperature, which limits the use of lattice sandwich structure in high temperature environment, so it is necessary to develop and apply to high temperature environment A new type of high-temperature ceramic material lattice sandwich structure. On the other hand, the preparation methods of traditional lattice sandwich structures mainly include stamping forming method, network lamination spot welding method, investment casting method, mesh frame interpenetration method, hot compression molding method, etc., which are not suitable for new high-temperature ceramics. Therefore, it is urgent to develop an integrated preparation ...

AI Technical Summary

Problems solved by technology

[0002] The existing metal material lattice sandwich structure and fiber-reinforced composite material lattice sandwich structure are prone to oxidation failure at high temperature, which limits the use of lattice sandwich structure in high temperature environment, so it is necessary to develop and apply to high temperature environment A new type of high temperature ceramic material lattice sandwich structure

On the other hand, the preparation methods of

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