| dc.contributor | Universidade Estadual Paulista (UNESP) | |
| dc.creator | Bruno, J. C. | |
| dc.creator | Boni, T. C. | |
| dc.creator | Cavalheiro, A. A. | |
| dc.creator | Zaghete, M. A. | |
| dc.date | 2014-05-20T13:53:39Z | |
| dc.date | 2016-10-25T17:04:06Z | |
| dc.date | 2014-05-20T13:53:39Z | |
| dc.date | 2016-10-25T17:04:06Z | |
| dc.date | 2008-02-05 | |
| dc.date.accessioned | 2017-04-05T21:09:09Z | |
| dc.date.available | 2017-04-05T21:09:09Z | |
| dc.identifier | Materials Research Bulletin. Oxford: Pergamon-Elsevier B.V. Ltd, v. 43, n. 2, p. 297-304, 2008. | |
| dc.identifier | 0025-5408 | |
| dc.identifier | http://hdl.handle.net/11449/19157 | |
| dc.identifier | http://acervodigital.unesp.br/handle/11449/19157 | |
| dc.identifier | 10.1016/j.materresbull.2007.03.010 | |
| dc.identifier | WOS:000252579800013 | |
| dc.identifier | http://dx.doi.org/10.1016/j.materresbull.2007.03.010 | |
| dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/865101 | |
| dc.description | The present work reports the effects caused by barium on phase formation, morphology and sintering of lead magnesium niobate-lead titanate (PMN-50PT). Ab initio study of 0.5PbMg(1/3)Nb(2/3)O(3)-0.5Ba(x)Pb((1-x))TiO(3) ceramic powders, with x = 0, 0.20, and 0.40 was proposed, considering that the partial substitution of lead by barium can reestablish the equilibrium of monoclinic-tetragonal phases in the system. It was verified that even for 40 mol% of barium, it was possible to obtain pyrochlore-free PMN-PT powders. The increase of the lattice parameters of PMN-PT doped-powders confirmed dopant incorporation into the perovskite phase. The presence of barium improved the reactivity of the powders, with an average particle size of 120 nm for 40 mol% of barium against 167 mn for the pure sample. Although high barium content (40 mol%) was deleterious for a dense ceramic, contents up to 20 mol% allowed 95% density when sintered at 1100 degrees C for 4 h. (c) 2007 Elsevier Ltd. All rights reserved. | |
| dc.language | eng | |
| dc.publisher | Pergamon-Elsevier B.V. Ltd | |
| dc.relation | Materials Research Bulletin | |
| dc.rights | info:eu-repo/semantics/closedAccess | |
| dc.subject | ceramics | |
| dc.subject | X-ray diffraction | |
| dc.subject | phase equilibria | |
| dc.title | Structural characterization of 0.5PbMg(1/3)Nb(2/3)O(3)-0.5Ba(x)Pb((1-x))TiO(3) powders | |
| dc.type | Otro | |
