期刊
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
卷 65, 期 2, 页码 497-503出版社
KLUWER ACADEMIC PUBL
DOI: 10.1023/A:1012441421955
关键词
kinetics of iron oxides transformation; thermal analysis of iron oxides
The aim of the present study was to determine the kinetic equations for the thermal transformations of precipitated iron oxides and hydroxides, namely for the process of thermal dehydroxylation of goethite and consecutive of hematite crystal structure growth as well as for the oxidation of magnetite to maghemite and its thermal transformation into crystalline hematite. The investigations have been carried out using thermogravimetry (TG/DTG/DTA), X-ray powder diffractometry (XRD) and high temperature powder diffractometry (HT-XRD). This presentation contains the continuation of our earlier works.
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