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Barium titanate gels were prepared from barium acetate and tetrabutyl titanate by sol-gel processing. The results of DTA and XRD showed that as-prepared gels were transformed into crystalline with tetragonal ferroelectric phase by a heat treatment at 600°C. It was found that soaking the BaTiO3 crystalline powders in nitric acid could increase the density of the ceramic bodies. The density of the resultant bodies is near 96% of the theoretical value. The dielectric measurement on most of the ceramic bodies showed that the magnitude of dielectric constant is 16,000 at its peak and 2500 at room temperature. D-E hysteresis loop was observed.

Ni64B36 glass has been investigated by X-ray diffraction, and conventional and pulse neutron diffraction, and evidence of first neighbour boron-boron atoms has been obtained.

Hydrogen is used as a probe for obtaining structural information on TiCu metallic glasses. Resulte from experimental radial distribution functions of hydrided and un- hydrided TiCu glasses show a significant change in the nearest neighbor distance between Ti and Cu atom. The measured distance suggests that hydrogen occupies mainly tetrahedral sites defined by Ti and Cu atoms under following hydriding conditions (85 atm H2–80°C).