WAVELET STRUCTURAL-ANALYSIS OF SILICA GLASSES MANUFACTURED BY DIFFERENT METHODS

Wavelet analysis of X-ray diffraction patterns was made for structures of silica glasses manufactured by electrical fusion, oxy-hydrogen fla me fusion of quartz powder, and flame hydrolysis of SiCl4. The analysi s indicates that their structures were not affected by the manufacture methods. It is believed that there is a thermodynamically most favour ed or unique structure for glass in an intermediate range up to a few nm. It is expected that amorphography (in analogy to crystallography f or crystal) for glass will emerge as a new branch of science. Accordin g to our statistical crystallite model, glass structure could be deter mined by the crystallography of corresponding crystals and the damping with interatomic distance for the crystalline regularity. (C) 1997 El sevier Science B.V.