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Dynamic plane-stress failure has been observed directly in the transmission electron microscope as a function of temperature using a commercially available cooling/straining holder in conjunction with a copper deformation cartridge. The low-temperature cooling stage permits studies of the ductile-brittle transition when the transition is between +23 and -170°C. A change in deformation mode was observed...
The morphology of syndiotactic polystyrene (s-PS) injection moulded at 50°C and 160°C was examined using polarized optical microscopy, transmission electron microscopy, and Fourier transform infra-red microspectroscopy as a function of mould temperature. A skin/core effect was present and significant structural differences existed at the skin of samples moulded at these two temperatures. Bars moulded...
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