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- W2379617796 abstract "The selective laser sintering experiment of the multi-component copper-based metal powder systems(Cu-CuSn-CuP) with different CuP contents was carried out. The effects of the P addition on the densification and the resultant microstructural features of the laser sintered powder were investigated by X-ray diffractometry(XRD) and scanning electron microscopy(SEM).The results show that P can act as deoxidizer to react with Cu and form CuPO_3.However,excessive P addition results in a larger degree of superheat of the melt,hence aggravating the oxidation.The bonding coherence between the sintered layers increases with the increase of the content of phosphorus.However,at a large amount of P,the solid-liquid wettability and the resultant densification decrease due to the excessive formation of P slag.Element P can also act as a fluxing agent to decrease the surface tension and viscosity of the melt,thereby improve the sintered densification and the microstructural homogeneity.Whereas,with excessive P addition, an extremely low melt viscosity causes balling phenomena.The results show that the optimal mass fraction of the CuP in the powder system is 15%." @default.
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- W2379617796 date "2006-01-01" @default.
- W2379617796 modified "2023-09-26" @default.
- W2379617796 title "Mechanism of P element in selective laser sintering of copper-based metal powder" @default.
- W2379617796 hasPublicationYear "2006" @default.
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