Effect of rapid solidification on microstructure, creep resistance and thermal properties of Sn-10 wt.% Sb- 3 wt.% X ( X= In, Ag, Bi and Zn) lead-free solder alloys
Journal Title: JOURNAL OF ADVANCES IN PHYSICS - Year 0, Vol 9, Issue 1
Abstract
The harmful effects of lead on the environment and human health, coupled with the threat of legislation, have prompted a serious search of lead-free solders for electronic packaging applications. The melt-spinning processes of ternary Sn-10 wt.%Sb-3 wt.%X (X=In, Ag, Bi and Zn) were analyzed using x-ray diffractometer (XRD), scanning electron microscopy (SEM), differential scanning calorimetry (DSC) and Vickers hardness tester (HV). The investigation showed that, the addition of a small amount of the third element enhances the ductility of the Sn–10 wt. % Sb lead-free solder due to the formation of a fine, homogeneous ternary microstructure. It is concluded that, the addition of 3.0 wt% Ag improves the grain size of the ternary microstructure. The fine precipitates from SnSb intermetallic compound suppresses the coarsening of the ternary structure and thus enhances solder ductility. Structural and microstructural analysis revealed that the origin of change in mechanical behaviors was due to refined beta-Sn grains and formation of intermetallic compounds(IMCs) SnSb, InSn19, ?-In3Sn and Ag3Sn. The results indicated that the melting point of Sn-10Sb-3 wt.% Ag and Sn-10 wt.%Sb- 3 wt.% Zn alloys reduced to 230 and 240 ?C respectively. In particular, the zinc addition at 3 wt.% is the most effective in improving solder ductility and good creep resistance correlated to a fine grain size and complete soluble of SnSb IMC particles in the ?-Sn matrix.
Authors and Affiliations
Rizk Mostafa Shalaby
Keywords
Related Articles
- EP ID EP653739
- DOI 10.24297/jap.v9i1.1469
- Views 37
- Downloads 0
Combined Cycle Consisting of Closed Processes Based Cycle Powered by A Reversible Heat Pump that Exceed Carnot Factor
This article deals with the task of analysing a feasible reversible combined cycle composed of a heat pump as the primary cycle and a non-condensing mode thermal engine characterized by operating under a closed processes...
Power of Magnetic
The theme here is about magnetism and what is produced by it, looking at the sun, the earth, as well as the atom, and in general. It also shows magnetic for its nature of - with or without pressure to limit the velocity...
The Effect of Water Salinity on Permeability of Oil Reservoir
The recovery of oil from clay-sandstone as revealed by past studies can be improved by increasing the concentration of the salinity in the core. This is as a result of the sensitivity of the clay-sandstone to the water s...
The Beginning of The Nuclear Universe and The Theory of Orbital Superconductivity of The Celestial Bodies
1. This article is a logical and rational analysis of the original nuclear matter, and of the structure thatgave rise to the space architecture of the universe with galaxies, stars, the system of planets and moons, andar...
Preparation, Characterization and Antibacterial Efficiency of Olive Leaves Extract and Chitosan-Silver Nanoparticles using Electrochemical Method
The present work involves the improvement of chitosan-olive leaves extract and silver nanoparticles (Cs-OLE-AgNPs) using electrochemical approach followed by UV-irradiation reduction. The formation of silver nanoparticle...