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首页> 外文期刊>The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical >Devitrification and Phase Equilibria in the xAgI (1-x)AgPO_3 System
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Devitrification and Phase Equilibria in the xAgI (1-x)AgPO_3 System

机译：xAgI（1-x）AgPO_3系统中的失透和相平衡

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摘要

Thermal stability and devitrification of the xAgI (1-x)AgPO_3 system were studied by combining Differential Scanning Calorimetry (DSC), X-ray powder diffraction XRPD, and ~(109)Ag solid-state NMR. Particular attention was devoted to the glass-ceramic region (AgI-rich part of the system) because of its high bias to crystallization. By treating glass-ceramic samples at 300 ℃, a more stable limiting glassy composition was found for x = 0.50. Total devitrification of glass-ceramic samples at 190 ℃ led to the formation of an intermediate compound with stoichiometry 2AgI.AgPO_3, accompanied by AgI. The phase diagram of the AgI-rich part of the system is also proposed.
机译：通过结合差示扫描量热法（DSC），X射线粉末衍射XRPD和〜（109）Ag固态NMR研究了xAgI（1-x）AgPO_3系统的热稳定性和失透性。由于玻璃-陶瓷区域（系统中富含AgI的部分）对结晶有很高的偏见，因此特别关注。通过在300℃下处理玻璃陶瓷样品，可以发现x = 0.50时更稳定的极限玻璃状组成。 190℃下玻璃陶瓷样品的完全失透导致形成化学计量为2AgI.AgPO_3的中间化合物，并伴有AgI。还提出了系统中富含AgI的部分的相图。

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