High-temperature oxidation behavior of Sn-8Zn-3Bi-P and its effect on properties

作者：Fang Yili^*; Zhou Jian; Xue Feng; Sun Yangshan

来源：Transactions of the China Welding Institution, 2008, 29(8): 89-92+96.

• Lead-free solder
• Mechanism
• Oxidation resistance
• P
• Sn-8Zn-3Bi

The effect of alloying P on oxidation behavior of the liquid Sn-8Zn-3Bi lead-free solder at 250°C was investigated by thermogravimetry experiment. The effect mechanism of P on the oxidation was discussed by scanning electronic microscopy (SEM) and auger electronic spectroscopy (AES) in experiments. Properties were compared between before after oxidation to explore the effect on solders'; other properties. The results indicate that P can improve the oxidation resistance of Sn-8Zn-3Bi obviously. P was oxidized which is prior to Zn. A oxide film consisting of P4O6 which was tend to volatilize formed on the surface of the solder. The over-all properties of the solder is best with the addition of 0.2wt.%P.

• 出版日期2008
• 单位东南大学