%0 Journal Article %1 WOS:000239794200020 %A Guarany, C A %A Reis, R N %A Araujo, E B %A Menezes, C T %A Filho, A G Souza %A Sasaki, J M %A Filho, J Mendes %C 2-4 PARK SQUARE, MILTON PARK, ABINGDON OR14 4RN, OXON, ENGLAND %D 2006 %I TAYLOR & FRANCIS LTD %J FERROELECTRICS %K ceramics; properties} structural {PMN; %P 147-155 %R 10.1080/00150190600694290 %T Preparation of pyrochlore-free PMN by an alternative chemical method %V 334 %X This work reports the synthesis of the MgNb2O6 and the ferroelectric lead magnesium niobate Pb(Mg1/3Nb2/3)O-3 (PMN) using fine precursor powders obtained from a chemical Oxide Precursor Method (OPM). To obtain pyrochlore-free PMN ceramics, the synthesis of the precursor MgNb2O6 powders was studied for 2-25 mol% excess of MgO and 10 mol% excess of PbO. Structural and microstructural properties of the sintered ceramics obtained by the cited method and by the classical columbite method were studied and compared. Results lead to good quality, pyrochlore-free PMN ceramic prepared by OPM, presenting greater grain size if compared with ceramic prepared by columbite method.

@article{WOS:000239794200020, abstract = {This work reports the synthesis of the MgNb2O6 and the ferroelectric lead magnesium niobate Pb(Mg1/3Nb2/3)O-3 (PMN) using fine precursor powders obtained from a chemical Oxide Precursor Method (OPM). To obtain pyrochlore-free PMN ceramics, the synthesis of the precursor MgNb2O6 powders was studied for 2-25 mol% excess of MgO and 10 mol% excess of PbO. Structural and microstructural properties of the sintered ceramics obtained by the cited method and by the classical columbite method were studied and compared. Results lead to good quality, pyrochlore-free PMN ceramic prepared by OPM, presenting greater grain size if compared with ceramic prepared by columbite method.}, added-at = {2022-05-23T20:00:14.000+0200}, address = {2-4 PARK SQUARE, MILTON PARK, ABINGDON OR14 4RN, OXON, ENGLAND}, author = {Guarany, C A and Reis, R N and Araujo, E B and Menezes, C T and Filho, A G Souza and Sasaki, J M and Filho, J Mendes}, biburl = {https://www.bibsonomy.org/bibtex/254aa7f764bbf007c025f072bd5cae215/ppgfis_ufc_br}, doi = {10.1080/00150190600694290}, interhash = {fe0de692f8277b7cd478e7e06d326ba6}, intrahash = {54aa7f764bbf007c025f072bd5cae215}, issn = {0015-0193}, journal = {FERROELECTRICS}, keywords = {ceramics; properties} structural {PMN;}, note = {11th International Meeting on Ferroelectricity (IMF-11), Iguassu Falls, BRAZIL, SEP 05-09, 2005}, organization = {Conselho Nacl Desenvolviment Cientif Tecnol; Consejo Nacl Invest Cientif Tecn; Univ Nacl La Plata; Univ Fed Sao Carlos; Ctr Latinoamer Fis; Taylor & Francis; Brazil-MRS; FAPESP; CAPES; Faber-Castell; Banco Brasil}, pages = {147-155}, publisher = {TAYLOR & FRANCIS LTD}, pubstate = {published}, timestamp = {2022-05-23T20:00:14.000+0200}, title = {Preparation of pyrochlore-free PMN by an alternative chemical method}, tppubtype = {article}, volume = 334, year = 2006 }