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Full-Text Articles in Engineering
Anomalous Loss Of Toughness Of Work Toughened Polycarbonate, Shawn E. Meagher
Anomalous Loss Of Toughness Of Work Toughened Polycarbonate, Shawn E. Meagher
Department of Engineering Mechanics: Dissertations, Theses, and Student Research
Glassy polymers such as polycarbonate (PC) can be toughened through compressive plastic deformation. The increase in toughness is substantial, showing as much as a fifteen fold increase in the amount of dissipated energy during failure for samples compressed to 50% plastic strain. This toughness increase can be reversed through thermal aging at temperatures below the glass transition temperature (Tg = 147°C).
The combined effect of plastic compression and thermal aging has been studied using Charpy, Single Edge Notch Bending (SENB), and Compact Tension (CT) tests. The tests mapped the response of samples cut along different orientations relative to the …
Age-Related Mineralization Heterogeneity In Human Femoral Cortical Bone, Timothy L. Norman, X. Chen
Age-Related Mineralization Heterogeneity In Human Femoral Cortical Bone, Timothy L. Norman, X. Chen
Engineering and Computer Science Faculty Presentations
No abstract provided.
Accelerated Aging Of Mwcnt Filled Electrically Conductive Adhesives, Ashwanth Reddy Vangala
Accelerated Aging Of Mwcnt Filled Electrically Conductive Adhesives, Ashwanth Reddy Vangala
University of Kentucky Master's Theses
Electrically conductive adhesives (ECA) are discussed and studied with everincreasing interest as an environmentally friendly alternative to solder interconnection in microelectronics circuit packaging. They are used to attach surface mount devices (SMD), Integrated Circuits (IC) and Flip chips in electronic assembly. The use of ECAs brings some benefits like flexibility, mild processing conditions and process simplicity. Multi walled carbon nanotubes (MWCNT) are used instead of metal fillers because of their novel properties such as light weight, high aspect ratio, corrosion resistant, reduced processing temperature, lead free, good electrical conduction and mechanical strength.
The purpose of the present work is to …