Effect of Terbium Additions on Microstructural, Thermal and Mechanical Properties of Eutectic Sn-3.5Ag Pb- Free Solder for Low Cost Electronic Assembly
Journal Title: JOURNAL OF ADVANCES IN PHYSICS - Year 2019, Vol 16, Issue 1
Abstract
This work methodically concentrated on the effect of a trace amount of rare earth element terbium, Tb (0.1, 0.2, 0.3, 0.4 and 0.5 wt. %) on the properties of eutectic Sn-3.5 wt. %Ag were studied. The results indicated that addition of Tb rare earth can be refined the microstructure of the solder and intermetallic compound (IMC) Ag3Sn phase appeared in the solder matrix. Add a few quantity of rare earth Tb enhances the hardness and strength of eutectic Sn-Ag lead free solder joint. Also, results indicate that adding Tb to the eutectic Sn-3.5Ag remarkably enhances solderability, reliability, thermal and mechanical properties. It is also found that increasing in mechanical strength can depend on crystalline size refining in addition to some regular precipitates from IMC, Ag3Sn.
Authors and Affiliations
Rizk Mostafa Shalaby, Fatma Elzahraa Ibrahim, Mostafa Kamal
Keywords
Related Articles
- EP ID EP653500
- DOI 10.24297/jap.v16i1.8239
- Views 55
- Downloads 0
Decay properties of Diquarks and exotics
Decay and spectroscopic properties of vector and scalar diquarks have been studied. The decay widths and decay constants of scalar and vector diquarks have been estimated in the frame work of quasi particle model of diqu...
Image comparisons among analysis, simulation and experimental solutions about stress distribution in rings loaded by multiple symmetrical radial forces
The theorem of energy valley state and a particular solution of Airy biharmonic equation will be used in the stress analysis in the rings loaded by the multiple- fold symmetrical forces to obtain stresses formulas. The v...
Quantum Double Dot as Quantum Computer Unit
In this work, we have investigated the exchange interaction of two electrons in double lateral quantum dot (which is the base of quantum gate) under effect of external magnetic field, electric field and inter dot distanc...
The Measurements of Natural Radioactivity, (Radon and Gamma concentrations), around the old fertilizer factory in Basrah/Iraq
Radon concentration, exhalation rate, annual effective dose, radium activity, thorium, uranium potassium and radium equivalent have been measured in the present investigation for soil in the area around the old fertilize...
Adaptive Statistical Iterative Reconstructions Technique (ASIR) Impact on Both Image Quality and Dose in CT Chest Examination
The main objective of the presented study was to estimate the influence of Adaptive Statistical Iterative Reconstruction (ASIR) algorithm on image and dose Image Quality in Chest CT (Computed tomography) examination comp...