Figure 4From: Synthesis of Novel Double-Layer Nanostructures of SiC–WO x by a Two Step Thermal Evaporation Processa Digital camera image of a SiC–W18O49double-layer nanostructure sample showing density gradient owing to mass transport of tungsten oxide source material; andb–d SEM image from different regions of the sample having only SiC nanowires, low density W18O49and high density W18O49nanorods, respectivelyBack to article page