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Silicon nitride surface metallization method
The invention belongs to the technical field of metallization, and discloses a silicon nitride surface metallization method, which comprises the following steps: covering a layer of metal foil on the surface of silicon nitride ceramic, then carrying out laser scanning etching, and completely metallizing the surface of a silicon nitride ceramic igniter to form a silicon nitride-metal composite material. According to the technical scheme, modification of the surface of the silicon nitride ceramic is achieved, a uniform and compact active metal conductive layer which is well connected with a ceramic matrix can be obtained on the surface of the silicon nitride ceramic, and stress between the ceramic matrix and a metal coating is relieved; and the spreadability and wettability of the brazing filler metal on the ceramic surface in the brazing process are remarkably improved.
本发明属于金属化技术领域，公开了一种氮化硅表面金属化方法，在氮化硅陶瓷表面覆盖一层金属箔片，然后激光扫描刻蚀，氮化硅陶瓷点火器表面完全金属化，形成氮化硅‑金属复合材料。本发明的技术方案实现了氮化硅陶瓷表面的改性，可在氮化硅陶瓷的表面获得一层均匀、致密且与陶瓷基体之间连接良好的活性金属导电层，缓和了陶瓷基体与金属涂层之间的应力，显著提高了钎焊过程中钎料在陶瓷表面的铺展性和润湿性。
Silicon nitride surface metallization method
The invention belongs to the technical field of metallization, and discloses a silicon nitride surface metallization method, which comprises the following steps: covering a layer of metal foil on the surface of silicon nitride ceramic, then carrying out laser scanning etching, and completely metallizing the surface of a silicon nitride ceramic igniter to form a silicon nitride-metal composite material. According to the technical scheme, modification of the surface of the silicon nitride ceramic is achieved, a uniform and compact active metal conductive layer which is well connected with a ceramic matrix can be obtained on the surface of the silicon nitride ceramic, and stress between the ceramic matrix and a metal coating is relieved; and the spreadability and wettability of the brazing filler metal on the ceramic surface in the brazing process are remarkably improved.
本发明属于金属化技术领域，公开了一种氮化硅表面金属化方法，在氮化硅陶瓷表面覆盖一层金属箔片，然后激光扫描刻蚀，氮化硅陶瓷点火器表面完全金属化，形成氮化硅‑金属复合材料。本发明的技术方案实现了氮化硅陶瓷表面的改性，可在氮化硅陶瓷的表面获得一层均匀、致密且与陶瓷基体之间连接良好的活性金属导电层，缓和了陶瓷基体与金属涂层之间的应力，显著提高了钎焊过程中钎料在陶瓷表面的铺展性和润湿性。
Silicon nitride surface metallization method
一种氮化硅表面金属化方法
HUI YU (author) / WU YINGBIN (author) / JIANG WEIWEI (author) / SUN WENPING (author) / GUO JIAXING (author) / LIU XUDONG (author) / NA ZHAOLIN (author) / WANG XING'AN (author)
2022-03-25
Patent
Electronic Resource
Chinese
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