Polymorphic transformation in nanocrystalline silver sulfide
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- 作者：S. I. Sadovnikov ; A. V. Chukin ; A. A. Rempel’ ; A. I. Gusev
- 刊名：Physics of the Solid State
- 出版年：2016
- 出版时间：January 2016
- 年：2016
- 卷：58
- 期：1
- 页码：30-36
- 全文大小：1,437 KB
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A. V. Chukin (2)
A. A. Rempel’ (1) (2)
A. I. Gusev (1)
1. Institute of Solid State Chemistry, Ural Branch, Russian Academy of Sciences, Yekaterinburg, Russia
2. Ural Federal University, Yekaterinburg, Russia - 刊物类别：Physics and Astronomy
- 刊物主题：Physics
Solid State Physics and Spectroscopy
Russian Library of Science - 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
- ISSN：1090-6460
文摘
The α-Ag2S acanthite–β-Ag2S argentite phase transformation in nanocrystalline silver sulfide has been studied in situ for the first time using high-temperature X-ray diffraction and scanning electron microscopy. The formation of argentite has been proved by differential thermal analysis. The acanthite–argentite transformation occurs at a temperature of ∼449–450 K, and its enthalpy is ∼3.7–3.9 kJ mol–1. The thermal expansion coefficients of acanthite and argentite have been estimated. Original Russian Text © S.I. Sadovnikov, A.V. Chukin, A.A. Rempel’, A.I. Gusev, 2016, published in Fizika Tverdogo Tela, 2016, Vol. 58, No. 1, pp. 32–38.