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Abstract:
研究了Sn-3.8Ag-0.7Cu-RE(RE为Ce、Er或Y)焊料在空气中室温与高温时效过程中稀土相CeSn3、ErSn3与YSn3表面Sn晶须的生长情况.结果表明,Sn晶须的开始生长时间、形态及数量与稀土相的种类及时效条件有密切关系.稀土相因氧化产生的体积膨胀提供了Sn晶须生长的驱动力.稀土与氧的化学亲和力参数及时效温度共同影响稀土相表面Sn晶须的生长.室温实效条件下,三种稀土相表面Sn晶须的直径为0.1~2.0 μm,长度可达几百微米;150 ℃时效条件下,Sn晶须的直径为0.1~0.2 μm,长度也可达上百微米.
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电子元件与材料
ISSN: 1001-2028
Year: 2009
Issue: 8
Volume: 28
Page: 35-38
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count: 5
Chinese Cited Count:
30 Days PV: 8
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