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Full-Text Articles in Mechanical Engineering
Effect Of Processing Conditions On The Development Of Morphology In Clay Nanoparticle Filled Nylon 6 Fibers, Zeynep Ergungor, Mukerrem Cakmak, Celal Batur
Effect Of Processing Conditions On The Development Of Morphology In Clay Nanoparticle Filled Nylon 6 Fibers, Zeynep Ergungor, Mukerrem Cakmak, Celal Batur
Dr. Celal Batur
The effect of melt temperature on the phase behavior and preferential orientation development in Nylon 6/montmorillonite nanocomposites were investigated at melt spinning temperatures ranging from 230° to 250°C. The fibers were found to exhibit mostly γ crystalline form that is typical of Nylon 6 filled with montmorillonite nanoparticles. At higher take-up speeds α-crystals begin to appear in the crystalline phase. The presence of nanoparticles was found to impart substantial chain orientation levels even at low to moderate take up speeds reaching a plateau at moderate take up speeds. This was attributed to the increased spin line stress in the presence …
Non-Intrusive Laser-Based, Full-Field Quantitative Flow Measurements Aided By Digital Image Processing. Part 2: The Hydrostatic Journal Bearing, Minel Braun, Celal Batur
Non-Intrusive Laser-Based, Full-Field Quantitative Flow Measurements Aided By Digital Image Processing. Part 2: The Hydrostatic Journal Bearing, Minel Braun, Celal Batur
Dr. Celal Batur
The full field flow tracking technique based on computer-aided image processing in combination with the non-intrusive particle tracking procedure described in Part 1 of this paper is used for quantification of qualitative images of flow in a six-pocket hydrostatic journal bearing. The method uses long distance microscopy (LDM) to evaluate at the same station in time, trajectories, velocities and accelerations throughout the flow field. For accurate and detailed evaluation, a new windowing procedure (WP) and an associated windowing assembly procedure (WAP) are introduced. The combination of WP and WAP brings together the LDM high magnification individually indexed windows into a …