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Showing 1 to 4 of 4 for “"Critical Point Drying"”.
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A scanning electron microscopy study of natural engineering soil
… The sample preparation method used is the air-drying, fracture, peel and vacuum coat technique but a small comparitive study of the critical point drying technique is also undertaken to investigate the validity of the methods used. The soils investigated represent particular examples of …
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Fabrication of high aspect ratio silicon nanostructure arrays by metal-assisted etching
… clustering were achieved through post-etching critical point drying. The size distribution of the diameters was narrow and closely followed the size distribution of the block copolymer. Fabrication of wires in topographic features demonstrated the ability to accurately control wire placement. …
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Fabrication of Random Hole Optical Fiber Preforms by Silica Sol-Gel Processing
… pressures and temperatures, as well as by supercritical fluid extraction of CO2. Mechanical strengthening techniques as described by Okazaki [5] have also been employed. The silica gel monoliths are characterized by helium pycnometry and scanning electron microscopy. Various shapes and densities …
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Microfabric changes during the deformation of clays.
… methods of specimen preparation. Free z e drying and �critical point drying were found to be the most reliable for scanning electron microscopy. The latter me t hod has been used with great success by the writer using acet one as an intermediate liquid and carbon dioxide as the working …