Crystallographic, dielectric, and diffuseness characteristics of PZN–PT ceramics

Phase formation and dielectric properties of (Pb,Ba)[(Zn1/2W1/2),Ti]O3 ceramics

“…0.2). It was reported, however, that the anatase phase was not observed whenever second components of (Mg/Zn)(Ta/Nb) 2 O 6 were introduced to TiO 2 [7,[18][19][20]. Therefore, the survival of anatase (even at x < 1.0) in the present study seems to be related to the presence of W component.…”

Effects of Barium Substitution on Perovskite Formation, Dielectric Properties, and Diffuseness Characteristics of Lead Zinc Niobate Ceramics

“…‡ Stabilization of a perovskite structure in such pyrochlore-prone compositions theoretically can be achieved by increasing the ENDs and/or increasing the TFs. In PZN, for instance, substitutions at the A-site by Ba(Zn 1/3 Nb 2/3 )O 3 (BZN) 17,18 or Sr(Zn 1/3 Nb 2/3 )O 3 19,20 or at the B-site by PbTiO 3 (PT), 17,[21][22][23] BaZrO 3 ,12 or SrTiO 3 21 also have been reported. In the present study, the development of a perovskite structure in PZN by systematic substitutions of isovalent, larger-sized barium ions into the lead site was investigated.…”

Dielectric properties of Zn- and/or Nb-substituted Pb[(Mg1/3Ta2/3),Ti]O3 ceramics

“…The results of (0.8-y)PMT-yPT-0.2PMN (System II) and (0.8-z)PMT-zPT-0.2PZN (System III) were virtually identical to those of System I, but without any pyrochlore(s) even at y, z=0.0. Therefore, the introduction (20 mol%) of PZT and PZN (Systems I and III) turned out not to suppress the perovskite formation (except for x=0.0), although pyrochlore phases are prone to develop by the powder process in PZT [6][7][8][9][10][11] and PZN [6,8,[14][15][16][17]. In addition, several peaks of the (pseudo)cubic perovskite at PMT-rich compositions became noticeably split with increasing values of x, y, and z in the three systems in common.…”