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QIU Xiliang, HAO Chengli, XIU Ziyang, HUANG Yilong, WU Gaohui, HE Peng. Preparation and properties of Y2O3/Sn-58Bi composite solders[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(1): 91-94.
Citation: QIU Xiliang, HAO Chengli, XIU Ziyang, HUANG Yilong, WU Gaohui, HE Peng. Preparation and properties of Y2O3/Sn-58Bi composite solders[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(1): 91-94.

Preparation and properties of Y2O3/Sn-58Bi composite solders

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  • Received Date: October 12, 2016
  • In the present work, the Y2O3/Sn-58Bi composite solders have been prepared by powder metallurgy method. The melting point of the solder was slightly affected by the addition of few amount of Y2O3. With the increase of the amount of Y2O3, the density and vickers microhardness were firstly increased to the peak value and then decreased with further addition of Y2O3, while the contact angle demonstrated the converse tendency. Compared with Sn-58Bi solder, the strength of the composite solder was slightly increased while the ductility was significantly improved after the addition of 0.1 wt.% Y2O3, solving the brittle problems of the traditional Sn-58Bi solder. Further observation of the fracture surface indicated that the addition of Y2O3 could refine the grain size of the Sn-58Bi and inhabits the propagation of cracks, which improve the ductility of the Sn-58Bi.
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