Ceramic slurry as well as preparation method and application thereof

CN119349995APending Publication Date: 2025-01-24NANCHONG THREE CIRCLE ELECTRONICS +1
4 Cites 2 Cited by

Patent Information

Application Number
CN202411456307.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-18
Publication Date
2025-01-24

AI Technical Summary

Technical Problem

During the casting and forming process of existing ceramic substrates, there are problems such as organic matter migration, uneven slurry dispersion, particle settlement and arrangement orientation, resulting in large differences in organic matter content, shrinkage, and green body strength on the front and back of the green body, and warping occurs during the sintering process. , The depth and width of the indentation and V groove on the front and back of the molding stamping are quite different.

Method used

The star -type polymethylene acrylic (star PMMA) is used as a binder, and it is reasonably re -entered with aluminum oxide powder, inorganic sintering auxiliary, dispersing agent, plasticizer and solvent to adjust the quality ratio to improve ceramic pulp The liquidity, decentralization and stability of the material.

Benefits of technology

It significantly improves the thickness, high density, high strength, and high deformation of the thickness of the ceramic substrate, which solves the various problems existing in the process of flow molding.

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Abstract

The invention relates to ceramic slurry and a preparation method and application thereof, and belongs to the technical field of ceramic slurry. The ceramic slurry provided by the invention comprises alumina powder, an inorganic sintering aid, a dispersant, a binder, a plasticizer and a solvent, the mass ratio of the alumina powder to the inorganic sintering aid to the dispersing agent to the binder to the plasticizer to the solvent is 1: (0.2-0.5): (0.2-0.4): (5-7): (2-3): (30-40); the binding agent comprises star-shaped polymethyl methacrylate. The star-shaped polymethyl methacrylate is adopted as the binder and reasonably matched with the alumina powder, the inorganic sintering aid, the binder, the plasticizer and the solvent, so that the flowability, dispersity and stability of the slurry are remarkably improved, and the ceramic substrate prepared through tape casting is uniform in thickness, high in density, high in strength and not prone to deformation.
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Citation Information

Patent Citations

  • Dispersion strengthened ceramic composite material and preparation method thereof

    CN106747545A

  • Ceramic substrate and preparation method and application thereof

    CN117986007A

  • Water-soluble propenoic-acids adhesive and its preparation method, ceramic slurry composition and preparation method thereof

    CN1508209A

  • Binder for manufacturing inorganic sintered body

    US20160053039A1

Cited By

  • Alumina ceramic slurry as well as preparation method and application thereof

    CN121494508A

  • High-transparency aluminum oxide ceramic plate for semiconductor packaging and preparation method of high-transparency aluminum oxide ceramic plate

    CN121609562A