Silicon dioxide fiber

Fig. 6 a) Triangular and b) rectangular cross-section silicon dioxide fibers developed for semiconductor applications... 

The key to the extraordinary power of these fibers is their fabulous purity. A triumph of modern chemistry, they are made of fused silica, essentially pure silicon dioxide, Si02. Thanks to this superpure glass, fiberoptic cables can snake their way across the ocean floor with virtually no discernible effect on their surroundings. 

Polycrystalline Amorphous Epitaxial silicon Carbon fiber Filaments Carbon nanotubes Silicon dioxide Tungsten Silicon nitride Titanium nitride... 

Silicon dioxide is the most widely used ceramic material in the semiconductor industry, and the majority of Si02 deposits in microelectronic circuits are formed by CVD. Silica layers are used as diffusion sources, intermetallic dielectrics, and dopant and etch barriers in the microelectronics industry. CVD of Si02 is also commonly used in manufacturing energy-efficient glass windows, surface coatings for fiber optics, and micromechanical applications. ... 

Chopped cellulose, jute, inorganic (asbestos, glass) and inorganic (PA, PAN, etc.) fibers, powder PTPE, graphite, soot, bronze, aluminum oxide, kaolin, vermiculite, chalk, dolomite, calcium silicate, silicon dioxide, mica, talc. 

Heiber at. al. investigated the extrusion of commercial silicon dioxide nanopower using a mixture of polyethylene and wax [Hei 04], With this thermoplastic binder system, powder loadings up to 58 vol% were achieved. With this very high powder loading it was possible to achieve dense glass fibers after sintering at 1100°C. 

Next to tubes and fibers, tbin ceramic sheets are also a very interesting subject for the development of thermoplastic ceramic extrusion systems. It has been shown that it is feasible to produce ceramic sheets and films with thicknesses under 200 pm. Figure 8 shows a picture of a ceramic sheet made of silicon dioxide nanoparticles. This technique could, for example, be used for the fabrication of multilayer ceramic bodies (e.g. multilayer capacitors, structural laminates) which currently are produced using the tape casting process. Big advantages relative to this conventional process would be the recycleability of the thermoplastic feedstocks and the higher achievable powder loading. 

Cotton fibers have been coated with silicone dioxide-based layers using atmospheric pressure plasma (APP) technique. SiO network armor was obtained through hydrolysis and condensation of the precursor TEOS and has been cross linked on the surface of cotton fibers. Because of the protective effects of the SiO network armor, the modified cellulosic fibers exhibit improved flame retardancy. SiO -APP coated textiles may have in the future numerous applications in the development of upholstered furniture, clothing, and military (Totolin et al., 2010). 

CVD is used to produce coatings, powders, and fibers. This process is important for the semiconductor industry. Depending on the device, it can be used to deposit thin films of active semiconductor material like silicon dioxide (Si02), for use as an insulating dielectric, and silicon nitride (Si3N4), for use as an insulator and chemical barrier in making integrated circuits (IC). 

Boron nitride,1% silicon dioxide Polystyrene 20% Glass fiber... 

Two part sizing composition for coating glass fibers is based on a mnltifunctional epoxy resin. It contains nncleating agent, such as, titanium dioxide, magnesium dioxide, silicon dioxide, antimony trioxide, mica, kaolin or talcum, or a boron nitride. ... 

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