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Surface treatment method for silicon carbide ceramic
The invention belongs to the surface treatment technology of materials. By adopting a method of combining surface control corrosion and surface coupling, surface control corrosion of the silicon carbide ceramic is realized in a relatively mild condition, so that the interface bonding property of the silicon carbide ceramic and an organic system is improved. The surface treatment method for silicon carbide ceramic provided by the invention comprises the following steps: pre-treatment; surface treatment; and post-treatment. By using one or a combination system of a potassium dichromate aqueous solution, a mixed aqueous solution of potassium dichromate and potassium hydroxide and a mixed aqueous solution of potassium ferricyanide and potassium hydroxide as a surface corrosion liquid, the mass concentration is between 5% and 50%, and the ceramic is soaked for 2-8 hours at the room temperature. The treatment method can be used for remarkably improving the surface wettability of the silicon carbide ceramic and improving the interface bonding strength of the silicon carbide ceramic/fiber-reinforced resin-based composite material, is simple to operate and easy to control, and is suitable for treatment of the bonding face of the silicon carbide ceramic and the organic system, particularly the technical field of processing of silicon carbide ceramic/fiber-reinforced resin-based composite material.
Surface treatment method for silicon carbide ceramic
The invention belongs to the surface treatment technology of materials. By adopting a method of combining surface control corrosion and surface coupling, surface control corrosion of the silicon carbide ceramic is realized in a relatively mild condition, so that the interface bonding property of the silicon carbide ceramic and an organic system is improved. The surface treatment method for silicon carbide ceramic provided by the invention comprises the following steps: pre-treatment; surface treatment; and post-treatment. By using one or a combination system of a potassium dichromate aqueous solution, a mixed aqueous solution of potassium dichromate and potassium hydroxide and a mixed aqueous solution of potassium ferricyanide and potassium hydroxide as a surface corrosion liquid, the mass concentration is between 5% and 50%, and the ceramic is soaked for 2-8 hours at the room temperature. The treatment method can be used for remarkably improving the surface wettability of the silicon carbide ceramic and improving the interface bonding strength of the silicon carbide ceramic/fiber-reinforced resin-based composite material, is simple to operate and easy to control, and is suitable for treatment of the bonding face of the silicon carbide ceramic and the organic system, particularly the technical field of processing of silicon carbide ceramic/fiber-reinforced resin-based composite material.
Surface treatment method for silicon carbide ceramic
WEI RUBIN (author) / LI FENG (author) / ZHAI WEN (author) / LIANG YONGFANG (author) / ZHANG WENTING (author) / CHEN QINGXIANG (author)
2015-09-02
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2024
| European Patent Office | 2015
| European Patent Office | 2024