Use of emanation thermal analysis to characterize thermal reactivity of brannerite mineral

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F07%3A00097337" target="_blank" >RIV/61388980:_____/07:00097337 - isvavai.cz</a>

Alternative codes found

RIV/46356088:_____/07:#0000858

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Use of emanation thermal analysis to characterize thermal reactivity of brannerite mineral

Original language description

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 degrees 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 degrees 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 degrees C, respectively, were determined from the ETA results. Mass losses intemperature ranges of 230-315, 570-760 and 840-1040 degrees 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.

Czech name

Použití emanační termické analýzy pro charakterizaci reaktivity minerálu branneritu za zvýšené teploty

Czech description

Metoda emanační termické analýzy (ETA) byla použita pro charakterizaci změn při zahřívání minerálu branneritu, amorfního oxidu U1-xTi2+xO6, z lokality El Cabril ve Španělsku.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CA - Inorganic chemistry

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2007

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Thermal Analysis and Calorimetry

ISSN

1388-6150

e-ISSN

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Volume of the periodical

88

Issue of the periodical within the volume

1

Country of publishing house

HU - HUNGARY

Number of pages

6

Pages from-to

93-98

UT code for WoS article

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EID of the result in the Scopus database

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