| 高温钎料PdCu－Ti在氧化铝陶瓷上的润湿性及界面反应 |
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| 引用本文： | 万传庚.高温钎料PdCu－Ti在氧化铝陶瓷上的润湿性及界面反应[J].焊接学报,1994(4). |
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| 作者姓名： | 万传庚 |
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| 作者单位： | 吉林工业大学 |
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| 摘 要： | 本文采用座滴法试验研究了合金系统ＰｄＣｕ－Ｔｉ在Ａｌ＿２Ｏ＿３上润湿性的变化规律。探讨了界面冶金及结合等行为。运用热力学理论对试验结果进行了分析。随Ｔｉ含量的增加及Ｐｄ含量的减少润湿角逐渐降低。Ｔｉ的加入使界面发生了一个双重变化：液相侧富氧、钛吸附层的生成及随后在固相侧氧化钛的生成。只有界面上生成一氧化钛，才能有较好的润湿行为和较强的结合力。
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| 关 键 词： | 陶瓷－金属界面反应 润湿性 高温钎料 PdCu合金 Al＿2O＿3 |
Wettability and interfacial metallurgieal behaviour of high temperature brazing alloys(PdCu-Ti) on alumina |
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| wan Chuangeng.Wettability and interfacial metallurgieal behaviour of high temperature brazing alloys(PdCu-Ti) on alumina[J].Transactions of The China Welding Institution,1994(4). |
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| Authors: | wan Chuangeng |
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| Abstract: | By using the sessile drop method,the effects of additions on th e wettabilityof a molten alloy Pd_(48)Cu_(52) on alumina base substrates have been studied. The joiningbehaviour and the interfacial metallurgieal behaviour were investigated.The results ofexperiments were analysed by means of thermodynamic theories.With the increasing oftitanium content,the contact angles were decreased.So did the contact angles of thealloys with the decreasing of palladium content;Due to the addition of Ti in order toimprove wettability,a double change at the interface took place:the formation of anadsorption layer rich in oxygen and titanium on the liquid side,than the formation ofa titanium oxide layer on the solid side. |
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| Keywords: | ceramic-metal reaction interface wettability high temperature brazing PdCu braze alloy Al_2O_3 |
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