Interfacial microstructure and properties of Sn–0.7Cu–0.05Ni/Cu solder joint with rare earth Nd addition

In this study, the effect of appropriate Nd addition on improving the high-temperature reliability of Sn-3.8Ag-0.7Cu (SAC387)/Cu solder joint after aging treatment was investigated. The interfacial microstructure of solder joint was refined with proper addition of Nd. This phenomenon could be explained as the adsorbing-hindering effect of surface-active Nd atoms which blocked the growth of brittle intermetallic compounds (IMCs) in the solder joint. Theoretical analysis indicated that 0.05 wt. % addition of Nd could distinctly decrease the growth constant of Cu6Sn5 IMCs and slightly decrease the growth constant of Cu3Sn IMCs respectively. The shear force of SAC387-0.05Nd/Cu solder joint was evidently improved compared with the origin solder joint. In addition, SAC387-0.05Nd/Cu solder joint maintained excellent mechanical property compared with SAC387/Cu solder joint even after 1440 h aging treatment.

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Microstructure and properties of rare earth CeO2-doped graphene composite coatings prepared by MAO on AA7050

International Journal of Materials Research (formerly Zeitschrift fuer Metallkunde) ◽

10.3139/146.111871 ◽

2020 ◽

Vol 111 (11) ◽

pp. 923-930

Author(s):

Yu Zong ◽

Renguo Song ◽

Tianshun Hua ◽

Siwei Cai

Keyword(s):

Rare Earth ◽

Composite Coatings ◽

Microstructure And Properties ◽

Graphene Composite ◽

Doped Graphene

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The interfacial microstructure and Kirkendall voids in In-48Sn/Cu solder joint

2013 14th International Conference on Electronic Packaging Technology ◽

10.1109/icept.2013.6756608 ◽

2013 ◽

Cited By ~ 1

Author(s):

Fei-fei Tian ◽

Zhi-quan Liu

Keyword(s):

Solder Joint ◽

Interfacial Microstructure ◽

Kirkendall Voids

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Effect of Nd Addition on the Microstructure and Martensitic Transformation of Ni-Ti Shape Memory Alloys

Advances in Materials Science and Engineering ◽

10.1155/2014/489701 ◽

2014 ◽

Vol 2014 ◽

pp. 1-6 ◽

Cited By ~ 6

Author(s):

M. Dovchinvanchig ◽

C. W. Zhao ◽

S. L. Zhao ◽

X. K. Meng ◽

Y. J. Jin ◽

...

Keyword(s):

Rare Earth ◽

Martensitic Transformation ◽

Shape Memory Alloy ◽

Shape Memory ◽

Earth Element ◽

Transformation Behavior ◽

Nd Addition ◽

One Step ◽

Niti Matrix ◽

Start Temperature

The effect of rare earth element Nd addition on the microstructure and martensitic transformation behavior of Ni50Ti50−xNdx(x=0, 1, 3, 7, 20) shape memory alloy was investigated experimentally. The results showed that the microstructure of Ni-Ti-Nd ternary alloy consists of the NiNd phase and the NiTi matrix. One-step martensitic transformation was observed in all alloys. The martensitic transformation start temperatureMsincreased gradually with increasing Nd content for Ni-Ti-Nd alloys.

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Effects of rare earth Ce addition on the microstructure and shear property of Cu/In-50Ag/Cu composite solder joint

Microelectronics Reliability ◽

10.1016/j.microrel.2021.114385 ◽

2021 ◽

Vol 127 ◽

pp. 114385

Author(s):

Li Yang ◽

Jian Qiao ◽

Yaocheng Zhang ◽

Huiming Gao ◽

Zengjian Yao ◽

...

Keyword(s):

Rare Earth ◽

Solder Joint ◽

Composite Solder ◽

Composite Solder Joint ◽

Shear Property

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Effects of rare-earth oxides on the microstructure and properties of Fe-based friction materials synthesized by in situ carbothermic reaction from vanadium-bearing titanomagnetite concentrates

RSC Advances ◽

10.1039/c9ra03271a ◽

2019 ◽

Vol 9 (36) ◽

pp. 20687-20697

Author(s):

Dajun Zhai ◽

Yue Shui ◽

Keqin Feng ◽

Yanyan Zhang

Keyword(s):

Rare Earth ◽

Tribological Properties ◽

Rare Earth Oxides ◽

Frictional Material ◽

Friction Materials ◽

Microstructure And Properties ◽

Iron Based

In this work, we prepared an iron-based frictional material from vanadium-bearing titanomagnetite concentrates by in situ carbothermic reaction with improved tribological properties.

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