caa a22 4500 463188063 CHVBK 20180406164859.0 cr unu---uuuuu 170326e20070401xx s 000 0 eng 10.1007/s10973-006-8094-0 doi (NATIONALLICENCE)springer-10.1007/s10973-006-8094-0 Useof emanation thermal analysis to characterize thermal reactivity of branneritemineral [Elektronische Daten] [V. Balek, E. Vance, V. Zeleňák, Z. Málek, J. Šubrt] Emanation thermal analysis (ETA) was used to characterize the thermal reactivity of amorphous brannerite mineral of general formula U1-xTi2+xO6 (locality El Cabril, near Cordoba, Spain). It was demonstrated that on sample heating up to 880°C microstructure changes taking place in the sample were accompanied by the formation of new radon diffusion paths, followed by their closing up during the final transformation of amorphous to crystalline brannerite in the range 900-1020 °C. Relative changes in structure irregularities that served as radon diffusion paths during heating and subsequent cooling of the sample to temperatures of 300, 550, 750, 880, 1020 and 1130°C, respectively, were determined from the ETA results. Mass losses in temperature ranges of 230-315, 570-760 and 840-1040°C were observed by thermogravimetry. Mass spectrometry indicated the release of CO2 mainly due to the decomposition of minor carbon amount in the brannerite mineral sample. Springer-Verlag, 2007 brannerite nationallicence emanation thermal analysis nationallicence MS nationallicence SEM nationallicence thermal reactivity nationallicence thermogravimetry nationallicence Balek V. Nuclear Research Institute Řež, plc, 25068, Řež, Czech Republic aut Vance E. Australian Nuclear Science and Technology Organization, Private Mailbag 1, NSW 2234, Menai, Sydney, Australia aut Zeleňák V. Nuclear Research Institute Řež, plc, 25068, Řež, Czech Republic aut Málek Z. Nuclear Research Institute Řež, plc, 25068, Řež, Czech Republic aut Šubrt J. Institute of Inorganic Chemistry, ASCR, 25068, Řež, Czech Republic aut Journal of Thermal Analysis and Calorimetry Kluwer Academic Publishers 88/1(2007-04-01), 93-98 1388-6150 88:1<93 2007 88 10973 https://doi.org/10.1007/s10973-006-8094-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10973-006-8094-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Balek V. Nuclear Research Institute Řež, plc, 25068, Řež, Czech Republic aut NATIONALLICENCE 700 1- Vance E. Australian Nuclear Science and Technology Organization, Private Mailbag 1, NSW 2234, Menai, Sydney, Australia aut NATIONALLICENCE 700 1- Zeleňák V. Nuclear Research Institute Řež, plc, 25068, Řež, Czech Republic aut NATIONALLICENCE 700 1- Málek Z. Nuclear Research Institute Řež, plc, 25068, Řež, Czech Republic aut NATIONALLICENCE 700 1- Šubrt J. Institute of Inorganic Chemistry, ASCR, 25068, Řež, Czech Republic aut NATIONALLICENCE 773 0- Journal of Thermal Analysis and Calorimetry Kluwer Academic Publishers 88/1(2007-04-01), 93-98 1388-6150 88:1<93 2007 88 10973 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer