| | 1 | Author
| Paolo Ghigna, M. Arco, Scavini | Requires cookie* | | | Title
| Kinetics and Mechanism of Nd2C u04 Synthesis  | | | | Abstract
| The reaction N d20 3 -I-C uO -*■ N d 2C u 0 4 was investigated on the basis of the Wagner-Schmalz-ried theory of diffusion-driven reactions between crystalline solids, with the help of monodimen sional chemical diffusion measurements. It was found that the kinetics of the process is governed by C u2+ diffusion, and the chemical diffusion coefficient Z)(Cu2+) in the N d 2C u 0 4 matrix was obtained (9.9 • 10-13, 1.97 • 10-12 and 1.98 • 10" 11 cm 2 s -1 at 1223, 1273 and 1323 K, respectively). The rela tively low value of D (C u2+) was interpreted on the basis of the crystal structures of the compound and related materials, which in addition may suggest an alternative rationale for the interpretation of neodymium immobility. | | | |
Reference
| Z. Naturforsch. 49a, 611—616 (1994); received M arch 14 1994 | | | |
Published
| 1994 | | | |
Keywords
| N d 2C u 0 4 superconductor, Synthesis, Reaction mechanism, Kinetics, Chemical diffu sion | | | |
Similar Items
| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_A/49/ZNA-1994-49a-0611.pdf | | | | Identifier
| ZNA-1994-49a-0611 | | | | Volume
| 49 | |
|
