کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1329281 | 978904 | 2009 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Comprehensive survey of Nd3+ substitution In La2Mo2O9 oxide-ion conductor Comprehensive survey of Nd3+ substitution In La2Mo2O9 oxide-ion conductor](/preview/png/1329281.png)
Differential thermal analysis coupled to temperature-controlled diffraction have given evidence of a topological metastability phenomenon in an extended compositional range of the La2−xNdxMo2O9 solid solution. A metastable–stable phase diagram is proposed for this series of LAMOX-type fast oxide-ion conductors. In the Nd range 0 Metastable–stable phase diagram of the solid solution La2−xNdxMo2O9 determined from DTA. The topological metastability of the high-temperature cubic β-form which goes back to monoclinic stable α-form above 450–500 °C is shown in the intermediate range 0.4⩽x⩽1.2. Above x=1.2, this transition progressively changes into a thermal trace of the postulated Arrhenius/VTF transformation of transport mechanism.Figure optionsDownload as PowerPoint slide
Journal: Journal of Solid State Chemistry - Volume 182, Issue 5, May 2009, Pages 1009–1016