Surface Finishing for Al2O3 Ceramics

Hong Wang

doi:10.4028/www.scientific.net/MSF.704-705.1133

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Microstructure of Aluminum Bronze Coating Sprayed by Cold Gas Dynamic Spraying (CGDS)
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Thermal Simulation Study of 900MPa Grade High-Strength Low Alloy Steel in Welding Procedures
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Surface Finishing for Al₂O₃ Ceramics
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Modeling of Carburization and Thermal Stress Analysis for Ethylene Cracking Furnace Tube
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Analysis of Unit and Binary Diffusion in Glow Plasma Surface Alloying Process
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HomeMaterials Science ForumMaterials Science Forum Vols. 704-705Surface Finishing for Al2O3 Ceramics

Surface Finishing for Al₂O₃ Ceramics

Abstract:

A process for electroless copper plating on Al₂O₃ ceramic products was provided. The bath is composed of components A (containing potassium tartrate 35 ~ 45 g/L, sodium hydroxide 7 ~ 9 g/L and sodium carbonate 3 ~ 4 g/L) and B (containing copper sulfate 7 ~ 14 g/L, nickel chloride 1 ~ 2 g/L and formaldehyde 15 ~ 20 g/L) with a volume ratio of 3:1. The bath composition and technological conditions of surface pretreatment were given, including degreasing, roughening, sensitizing, activating, and reducing. The formulation and process parameters for electroplating copper followed by coloring in five different colors, which are widely demanded in the market, were introduced. The coatings obtained by the presented processes on Al₂O₃ ceramic products are smooth and bright, producing an elegant appearance and greatly extending their service lives. All these technologies have been successfully applied to practical electroplating production, showing a wide development future.

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Periodical:

Materials Science Forum (Volumes 704-705)

Pages:

1133-1135

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.704-705.1133

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Online since:

December 2011

Authors:

Hong Wang

Keywords:

Alumina Ceramic Product, Electroless Copper Plating, Electrolytic Coloring, Surface Pretreatment

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