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Thermal Cycling Reliability of Nickel added Solder Paste for use in Surface Mount Manufacturing
(2010-11-03)
With the ban on lead (Pb) by the European Union (EU), the electronics industry has sought alternatives to replace the long used Sn-Pb solder. Although Sn-Ag-Cu (SAC) alloys with Sn3Ag0.5Cu (SAC 305) have been considered ...
A Multiscale Investigation of the Fatigue Behavior of Additively Manufactured Nickel Superalloys
(2021-11-15)
Fatigue as the most frequent mode of failure among mechanical systems has been the focus of a large part of the research community. Modern manufacturing technologies are developed to address the need for complex geometries ...
Charging strategy considering subzero temperature based on electrochemical-thermal life model for lithium-ion batteries
(2021-12-06)
In order to overcome range anxiety of electric vehicles (EVs) powered by lithium-ion batteries, more batteries are installed to increase battery capacity, which results in a long charging time that is one of the most ...
A Numerical and Experimental Study of Additively Manufactured Compact Cold Plates for Electronics Cooling Applications
(2021-12-03)
This research assesses the viability of metal Additive Manufacturing (AM) to create Compact Cold Plate Heat Exchangers. Unique arrays of offset strip fins were used to increase heat transfer and reduce pressure drop. Cold ...
Modal and Impact Analysis of Fluid-Structure Interaction by Finite Element Methods.
(2021-12-01)
In this work, the modal and impact interactions of fluid-filled cylindrical structures are studied. The first part of the study focuses on the parametric modal analysis of fluid-coupled thin structures. This study emphasizes ...
Study of Friction and Wear Behavior Based on Different Lubricants and Materials
(2021-12-02)
Tribology is the study of friction, wear, and lubrication between the contacting bodies and requires a deeper understanding of multiple disciplines. This study was mainly focused on two main areas: the tribological study ...
Modeling and Experimental Behavior Studies on Tin Whiskers
(2021-12-06)
The spontaneous growth of tin whiskers can occur under room temperature conditions. However, under more extreme external conditions (e.g., high temperature, high humidity, or thermal cycling), the rate of such growth tends ...
Improving Magnetic Map-Based Navigation using Vehicle Motion Information
(2022-01-06)
This thesis utilizes the earth's main magnetic field as the signal for a map definition, implements a particle filter to synthesize a solution from likelihood information, and introduces vehicle motion information by means ...
Investigation of Precise Relative Positioning through Varying Equipment Grades
(2022-02-22)
In this thesis, three methodologies are investigated in order to provide precise relative positioning knowledge between two dynamic platforms as equipment grade is varied. Two methods are integrated into the real-time ...
Design and Calibration of Stress Sensors on 4H-SiC
(2022-03-07)
Stresses in electronic packages due to thermal and mechanical loadings can cause premature mechanical failures such as fracture of die, severing of connections, die bond failure, solder fatigue, and encapsulant cracking. ...