| dc.contributor | Universidade Estadual Paulista (UNESP) | |
| dc.creator | Las, W. C. | |
| dc.creator | Gouvea, D. | |
| dc.creator | Sano, W. | |
| dc.date | 2014-05-27T11:19:45Z | |
| dc.date | 2016-10-25T18:15:47Z | |
| dc.date | 2014-05-27T11:19:45Z | |
| dc.date | 2016-10-25T18:15:47Z | |
| dc.date | 1999-08-01 | |
| dc.date.accessioned | 2017-04-06T00:54:28Z | |
| dc.date.available | 2017-04-06T00:54:28Z | |
| dc.identifier | Solid State Sciences, v. 1, n. 6, p. 331-337, 1999. | |
| dc.identifier | 1293-2558 | |
| dc.identifier | http://hdl.handle.net/11449/65812 | |
| dc.identifier | http://acervodigital.unesp.br/handle/11449/65812 | |
| dc.identifier | 10.1016/S1293-2558(00)80087-4 | |
| dc.identifier | WOS:000084083800002 | |
| dc.identifier | 2-s2.0-0012872012 | |
| dc.identifier | http://dx.doi.org/10.1016/S1293-2558(00)80087-4 | |
| dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/887488 | |
| dc.description | Electron Paramagnetic Resonance (EPR) spectra have been obtained at room temperature and at X-band in powders of SnO2 doped with Mn from 0.3 to 10% and submitted to heat treatment from 500 to 900 °C. Mn ions are probably located at particle surfaces as Mn2+, evidenced by its single EPR line which narrows by the exchange interaction effect due to particle growth observed by the BET technique. In samples doped above 1% formation Of Mn3O4 is detected on particle surfaces and a small quantity of Mn is thermally diffused into the bulk as Mn4+. Powders compacted and sintered at 1300 °C confirmed that Mn2+ ions remain at grain boundaries acting as densifying agent. | |
| dc.language | eng | |
| dc.relation | Solid State Sciences | |
| dc.rights | info:eu-repo/semantics/closedAccess | |
| dc.title | EPR of Mn as densifying agent in SnO2 powders | |
| dc.type | Otro | |
