Thermal decomposition data of uranium containing microspheres produced via internal gelation and ammonium diuranate powder
收藏资源简介：
A combination of simultaneous thermal analysis, evolved gas analysis and non-ambient XRD techniques was used to characterise and investigate the thermal decomposition behaviour in the NH<sub>3</sub> − UO<sub>3</sub> − H<sub>2</sub>O class of materials. One compound was prepared according to a typical ammonium diuranate precipitation reaction, and could be identified as 3UO<sub>3</sub>·NH<sub>3</sub>·5H<sub>2</sub>O. Microspheres prepared by the sol-gel method via internal gelation were associated to the composition 3UO<sub>3</sub>·2NH<sub>3</sub>·4H<sub>2</sub>O under the specified conditions. The products were analysed using the techniques listed below, the resulting data are part of this dataset. TGA, combined with EGA-MS (<em>T<sub>max</sub></em> = 1300 °C, heating rate = 2 °C/min) TG-DSC, combined with EGA-MS (<em>T<sub>max</sub></em> = 1300 °C, heating rate = 10 °C/min) ambient XRD (dried products after synthesis) <em>in-situ</em> high temperature XRD (including initial and final scans, taken at 35 °C) <em>T<sub>max</sub></em> for 3UO<sub>3</sub>·NH<sub>3</sub>·5H<sub>2</sub>O = 1300 °C; <em>T<sub>max</sub></em> for 3UO<sub>3</sub>·2NH<sub>3</sub>·4H<sub>2</sub>O = 650 °C Samples measured directly on a Pt/Rh heating strip (Pt/Rh phase visible in patterns, blank scan included)
