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Warm and ice-rich frozen soil (WIRFS) exhibits lower shear strength due to the weak binding forces between soil particles and ice crystals. To enhance the strength of WIRFS, frozen soil was treated separately with Portland, Phosphate, Sulphoaluminate, Portland-Phosphate and Portland-Sulphoaluminate cements. After the samples were cured under -1.0°C for 7 days, the microscopic pore distribution characteristics...
RuO2 nanocrystals (NCs) were deposited on carbon nanotubes (CNTs) by reactive RF magnetron sputtering using a Ru target under different conditions. Their surface morphology, structural, spectroscopic and field emission (FE) properties were studied using field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM), Raman spectroscopy, and a home made high vacuum FE...
In order to enhance field emission (FE) property of carbon nanotubes (CNTs), IrO2 nanocrystals (NCs) were coated on the patterned CNT bundle arrays via reactive RF magnetron sputtering. The properties of IrO2/CNTs composites were characterized by field-emission scanning electron microscopy and transmission electron microscopy. Based on the combined effects of geometrical structure of IrO2/CNTs composites,...
A new metalorganic ruthenium compound which contained two β-diketonate and two CO ligands arranged in cis-disposition was used in preparation of high quality ruthenium dioxide (RuO 2 ) thin films by cold-wall metalorganic chemical vapor deposition. A detailed characterization of the films including scanning electron microscopy (SEM), electrical resistivity, Raman scattering and X-ray diffraction...
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