Fabrication And Interface Research Of Glass Fiber Reinforced Magnesium Matrix Composite

Lighter, stronger composite materials become the world's hot spots. Light-weight, higher mechanical properties is the urgent need to pursue by the aviation, aerospace, national defense industry and so on. However, what these department need was not satisfied because of the heavy density of current MMCs. Magnesium alloy is the lightest structure metal material, and is considered as the best alloy in the 21st century. In this paper, a novel FMLs composite, high-performance glass fiber reinforced magnesium composite, is prepared in this paper.As a result of the poor wettability and chemical compatibility between magnesium and glass fiber, the modification research on glass fiber surface must be carried out. In this paper, metallization on the surface of glass fiber was studied by electroless plating. Copper coating is obtained. The main procedures of this coating technique are: cleaning, erosion, sensitization, activation, and electroless plating. This solution is steady and the electroless copper plating layer is bright and compact, with high binding capacity to magnesium matrix.Because of no literature reports, this paper is to explore the forming process of composite materials, and the third metal is added to strengthen the combination between fiber and magnesium matrix. Furthermore, the added metal also can strengthen the combination between monofilament fiber. Therefore, zinc and aluminum as a metal additive was separately added to the copper-glass fiber reinforced magnesium matrix composite. The parameters of composite preparation were obtained. The laminate composites in this paper can greatly enhance the heat-resistance temperature, and even to achieve short-term high temperature 550℃.Interface analysis of these composites was carried out. Through metallographic observation, SEM, EDS, we found that: a fine interface between copper on glass fiber and magnesium matrix, copper and zinc or aluminum, magnesium matrix and zinc or aluminum. Inter-diffusion was also found between copper, zinc, aluminum, magnesium, thus, an effective integration of intensifier and matrix was obtained.