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Masters Theses

2009

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Full-Text Articles in Engineering Science and Materials

Wetting Behavior Of Polymer Melts With Refractory Coatings At High Temperature, Robin Woracek Dec 2009

Wetting Behavior Of Polymer Melts With Refractory Coatings At High Temperature, Robin Woracek

Masters Theses

Within the scope of this thesis, an experimental system has been designed, developed and manufactured for the determination of the wetting behavior of liquids and polymer melts with solid surfaces (coated and uncoated) at high temperatures (> 200 ÂșC). The measurement system incorporates a modified Wilhelmy plate technique, using a precision weighing module, a vertical linear stage, custom developed application software using LabView with suitable hardware and a high temperature furnace with thermocouple feedback control. Experiments have been performed and are reported to evaluate the performance of the testing system, using liquids of known wetting properties. A suitable testing procedure based ...


High Resolution X-Ray Tomography Of Fiber Reinforced Polymeric Composites, Stephen Andrew Young Aug 2009

High Resolution X-Ray Tomography Of Fiber Reinforced Polymeric Composites, Stephen Andrew Young

Masters Theses

A high resolution x-ray tomography system was used to study chopped fiber polymeric composites made of polypropylene resin, nickel coated carbon fiber and Eglass fiber. Procedures are developed to obtain micro-structured features of importance. In-situ tensile testing system was developed and integrated into the existing hardware for tomography equipment to study the evolution of damage and micro-structural features as a function of mechanical stress. High resolution x-ray tomographic images of glass fiber were collected and viewed on a micron scale. The radiographs were reconstructed to visualize the fiber content of the samples in three dimensional volume. In addition, glass fiber ...