publication . Article . 2003

Thermal expansion in cuprite‐type structures from 10 K to decomposition temperature: Cu2O and Ag2O

Monica Dapiaggi; Walter Tiano; Gilberto Artioli;
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  • Published: 15 Nov 2003 Journal: Journal of Applied Crystallography, volume 36, pages 1,461-1,463 (issn: 0021-8898, Copyright policy)
  • Publisher: International Union of Crystallography (IUCr)
Abstract
<jats:p>The thermal expansion of two isostructural oxides, Cu<jats:sub>2</jats:sub>O and Ag<jats:sub>2</jats:sub>O, has been measured from 10 K to their respective decomposition temperatures by means of high-resolution X-ray powder diffraction. The thermal behaviours of the two oxides are different. Cuprite has a negative thermal expansion up to about 200 K, and above this temperature it becomes positive. Ag<jats:sub>2</jats:sub>O, on the other hand, has a negative thermal expansion up to its decomposition temperature. A comparison with EXAFS data in the same temperature range shows that the observed difference between the thermal expansion regimes of the two co...
Subjects
free text keywords: General Biochemistry, Genetics and Molecular Biology, Cuprite, visual_art.visual_art_medium, visual_art, Inorganic chemistry, Analytical chemistry, Negative thermal expansion, Atmospheric temperature range, Chemistry, Powder diffraction, Thermal expansion, Thermal decomposition, Isostructural, Decomposition
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