| 两种Pd-Ni基高温钎料在Si3N4陶瓷上的润湿性 |
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| 引用本文： | 陈波,熊华平,毛唯,李晓红.两种Pd-Ni基高温钎料在Si3N4陶瓷上的润湿性[J].焊接学报,2008,29(3):57-60. |
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| 作者姓名： | 陈波 熊华平 毛唯 李晓红 |
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| 作者单位： | 北京航空材料研究院焊接及锻压工艺研究室,北京,100095 |
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| 摘 要： | 采用座滴法研究了两种钎料PdNi-(15～22)v和PdNi-(16～24)Cr在Si3N4陶瓷上的润湿性.结果表明,两种钎料的熔点及润湿性均有很大差别,PdNi-(16～24)Cr钎料对Si3N4陶瓷的润湿铺展良好.PdNi-(16～24)Cr钎料与Si3N4陶瓷形成的扩散反应层中,Cr元素主要分布在扩散反应层区域,根据各元素所占比例,Cr元素主要与母材扩散出的N元素形成Cr2N相.由于Cr原子向母材界面扩散,从而改善了钎料的润湿性.
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| 关 键 词： | 陶瓷 反应层 润湿性 钎料 |
| 文章编号： | 0253-360X（2008）03-0057-04 |
| 收稿时间： | 2007-11-09 |
| 修稿时间： | 2007年11月9日 |
Wettability of two kinds of Pd -Ni brazing filler metals on Si3N4 ceramic |
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| Chen Bo,XIONG Huaping,MAO Wei and LI Xiaohong.Wettability of two kinds of Pd -Ni brazing filler metals on Si3N4 ceramic[J].Transactions of The China Welding Institution,2008,29(3):57-60. |
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| Authors: | Chen Bo XIONG Huaping MAO Wei and LI Xiaohong |
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| Affiliation: | Lab. of Welding and Forging, Beijing Institute of Aeronautical Materials, Beijing 100095, China,Lab. of Welding and Forging, Beijing Institute of Aeronautical Materials, Beijing 100095, China,Lab. of Welding and Forging, Beijing Institute of Aeronautical Materials, Beijing 100095, China and Lab. of Welding and Forging, Beijing Institute of Aeronautical Materials, Beijing 100095, China |
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| Abstract: | The wetting behavior of PdNi-(15-22)V and PdNi-(16-24)Cr on Si3N4 was studied by the sessile drop method. Results show that there are differences in the melting point and the wettability between PdNi-(15-22)V and PdNi-(16-24) Cr, and small contact angle and excellent interface are obtained using the latter.In the interfacial layer with PdNi-(16-24)Cr filler metal, Cr diffused to Si3N4 and resulted in the reaction products of Cr2N phase.Diffusion of Cr to the base material improved the wettability of brazing filler metal. |
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| Keywords: | ceramic reaction layer wettability brazing filler metal |
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