| Title | Doping effects on the phase transition of LiMn2O4 by anelastic spectroscopy and differential scanning calorimetry |
|---|---|
| Publication Type | Articolo su Rivista peer-reviewed |
| Year of Publication | 2006 |
| Authors | Paolone, A., Cantelli R., Scrosati B., Reale P., Ferretti M., and Masquelier C. |
| Journal | Materials Science and Engineering A |
| Volume | 442 |
| Pagination | 220-223 |
| ISSN | 09215093 |
| Keywords | Anelastic spectroscopy, Differential scanning calorimetry, Doping (additives), Doping effects, Latent heat, Lithium compounds, Low temperature effects, Phase transitions |
| Abstract | A comparative study of Li1+xMn2-xO4 (0 ≤ x ≤ 0.08) by means of anelastic spectroscopy and differential scanning calorimetry (DSC) is reported. DSC measurements, in agreement with previous literature, can detect a phase transition accompanied by latent heat only for x < 0.04. This fact has been generally accepted as a proof that the transformation is suppressed by doping. In this paper we show that DSC alone is not sufficient to provide a correct answer to the problem. Indeed, anelastic spectroscopy, which is a technique extremely sensitive to rearrangements of atoms in the lattice, indicates that the transition survives up to x = 0.08, is shifted towards lower temperatures, and becomes of an order higher than the first, so that there is no associated latent heat. © 2006 Elsevier B.V. All rights reserved. |
| Notes | cited By 5 |
| URL | https://www.scopus.com/inward/record.uri?eid=2-s2.0-33751116350&doi=10.1016%2fj.msea.2006.01.134&partnerID=40&md5=ebbf385683c3c3ae9acc38072e914090 |
| DOI | 10.1016/j.msea.2006.01.134 |
| Citation Key | Paolone2006220 |
