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Describes the preparation of polycrystalline VT and observations of phase transitions using pulse nuclear magnetic resonance measurements of triton relaxation times. Finds that the critical temperatures (T /SUB c/ ) for the phase transitions in the VT /SUB x/ samples follow the mass-dependent trends found for VH /SUB x/ and VD /SUB x/ and qualitatively obey the isotopic dependence predicted by the theoretical models of Entin et al. Presents table comparing experimental and calculated isotope effects.

Typical pyrotechnic reaction exotherms are shown for a number of pyrotechnic blends prepared from Ti hydrides of several hydride compositions. Rate appears to increase with increasing hydrogen in the Ti hydride.

A sample of titanium metal powder QC 1779 was subjected to five different treatments of dyring and moisture exposure to estimate the effectiveness of normal drying and handling procedures used in the pyrotechnics processing. The treatments were drying in air, drying in two different vacuum furnaces, exposure to normal humidity, and exposure to 100 percent humidity. Statistical evaluation of the NMR results indicates that there is a significant difference between the moisture content of each treatment. Although the combined effects of temperature, pressure, humidity, and treatment time were not studied in a designed manner to determine their significance on the effectiveness of the drying techniques and moisture uptake by sample QC 1779, the experimental evidence does indicate that all four variables do affect the results of the treatments. 2 figures, 6 tables.