Active metal brazing of titanium to high-conductivity carbon-based sandwich structures
Active metal brazing of titanium to high-conductivity carbon-based sandwich structures
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DOI：
10.1016/j.msea.2007.11.151
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发表时间：
2008-12
期刊：
影响因子：
6.4
通讯作者：
M. Singh;G. Morscher;T. Shpargel;R. Asthana
中科院分区：
文献类型：
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作者：
M. Singh;G. Morscher;T. Shpargel;R. Asthana
采用Cusil-ABA活性钎焊膏和箔，开发了钛管、泡沫石墨和高导电性碳-碳复合材料面板的反应钎焊技术，并优化了工艺参数。的接头的微观结构和组合物，使用扫描电子显微镜结合能量色散光谱检查，显示良好的结合和钎焊渗透在所有系统中使用时，钎焊膏。钎焊接头的硬度值是一致的，为不同的试样堆叠配置。钛管/泡沫/C-C复合材料结构的拉伸和剪切力学测试表明，失效总是发生在泡沫材料中，这表明钎焊接头足以用于这些类型的夹层结构。
Reactive brazing technology was developed and processing parameters were optimized for the bonding of titanium tubes, graphite foam, and high-conductivity carbon–carbon composite face sheets using the active braze Cusil-ABA paste and foils. The microstructure and composition of the joints, examined using scanning electron microscopy coupled with energy-dispersive spectroscopy, showed good bonding and braze penetration in all systems when braze paste was used. The hardness values of the brazed joints were consistent for the different specimen stacking configurations. Mechanical testing of Ti tube/foam/C–C composite structures both in tension and shear showed that failure always occurred in the foam material demonstrating that the brazed joint was sufficient for these types of sandwich structures.