复相Al_2O_3/SiCW陶瓷与不锈钢钎焊接头的界面反应和反应产物

• 作 者: 段宇\\r\\r\\r\\r\\r\\r\\r\\r\\r\\n 邹增大 曲仕尧
• 机 构: 海军潜艇学院,山东大学,山东大学 青岛市266071,济南市250061\\r\\r\\r\\r\\r\\r\\r\\r\\r\\n,济南市250061
• 出 处: 焊接
• 发表日期: 2002年06期
• 关键词: 界面反应 钎焊接头 Al_2O_3/SiCW 钎料 复相 活性金属钎焊 氩气保护 晶须 能谱仪 钎焊温度

采用氩气保护下的活性金属钎焊法对碳化硅晶须增韧氧化铝陶瓷 (Al2 O3 /SiCW)与不锈钢 ( 1Cr18Ni9Ti)进行了钎焊 ,所用钎料为Ag -Cu -Ti3活性钎料。通过X -射线衍射仪 (XRD)对界面的反应产物进行了物相分析 ,并用能谱仪 (EDAX)分析了界面元素组成。结果表明 ,钎焊接头界面的反应十分复杂 ,反应产物多种多样 ,主要有TiO、Ti2 O、TiC、Fe2 Ti4 O、Ni3 Ti、AlTi等物质 ,界面反应层按Al2 O3 +SiC/TiO +AlTi +TiC/Ti2 O +Fe2 Ti4 O/Ag -Cu的规律过渡。

The brazed aluminum-ceramic (Al2O3 / SiCW) and stainless steel (1Cr18Ni9Ti) were brazed by the active metal brazing under the protection of argon gas. The brazing filler metal used was Ag-Cu-Ti3 active brazing filler metal. The reaction products of the interface were analyzed by X - ray diffractometer (XRD). The interface elements were analyzed by energy dispersive spectrometer (EDAX). The results show that the reaction at the interface of brazed joints is very complicated and the reaction products are varied. The main products are TiO 2, Ti 2 O, TiC, Fe 2 Ti 4 O, Ni 3 Ti and AlTi. The interface reaction layer is composed of Al 2 O 3 + SiC / TiO + AlTi + Regular transition of TiC / Ti2O + Fe2Ti4O / Ag-Cu.