Lead magnesium tantalate–lead titanate perovskite ceramic system: preparation and characterization

Kim, Jee-Su; Kim, Nam-Kyoung

doi:10.1016/s0025-5408(00)00431-1

Cited by 27 publications

(21 citation statements)

References 24 publications

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“…Meanwhile, the maximum dielectric constant values were highest at intermediate compositions in the three systems, similar to the variations in PMT-PT [5]. Among them, the values were highest in the case of PZN introduction (System III): K max = 27,300 (z =0.2) and 27,000 (z=0.4) at 1 kHz.…”

Section: Resultssupporting

confidence: 59%

“…6, where the values of PMT-PT [5] are also included for comparison. The (1-w) PMT-wPT system is equivalent to (0.8-w)PMT-wPT-0.2PMT (i.e., (1-w)PMT-wPT with 20 mol% PMT introduction), which henceforth will be referred to as System 0.…”

Section: Resultsmentioning

confidence: 99%

“…When compared with the prototype relaxors Pb(Mg 1/3 Nb 2/3 )O 3 and Pb(Zn 1/3 Nb 2/3 )O 3 (PMN and PZN, respectively), however, PMT has not been studied as much. The lack of interest in PMT so far can be attributed (at least in part) to the dielectric maximum temperature of −98°C, which is rather low for practical applications [1,[4][5][6][7]. Meanwhile, Pb(Zn 1/3 Ta 2/3 )O 3 (PZT) has not been synthesized to a perovskite structure yet [6][7][8][9][10][11] in spite of its stoichiometry identical to those of complexperovskite PMT, PMN, and PZN.…”

Section: Introductionmentioning

confidence: 99%

“…Several studies on the dielectric properties of the Pb [(Mg 1/3 Ta 2/3 ),Ti]O 3 (i.e., PMT-PT) pseudobinary system have been reported to date, especially near the morphotropic phase boundaries [5,12,13]. However, sinterability of stoichiometric PT powder compacts is known to be rather poor owing to the development of microcracks (induced from the large crystallographic anisotropy of c/a= 1.065, ICDD No.…”

Section: Introductionmentioning

confidence: 99%

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

2007

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Ceramic powders of Pb[(Mg 1/3 Ta 2/3 ),Ti]O 3 , with the octahedral components substituted separately as well as simultaneously by Zn and Nb, were synthesized by a twostep B-site precursor method. Prepared powders were examined by X-ray diffraction (XRD) to monitor the phase developments and also to determine the crystallographic aspects. The weak-field low-frequency dielectric constant and loss values of the sintered specimens were determined. Temperature-dependent dielectric constant values were further analyzed in terms of diffuseness/sharpness in the phase transition modes. The internal microstructures of the ceramics were examined by scanning electron microscopy (SEM).

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Section: Resultssupporting

confidence: 59%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

2007

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“…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.…”

Section: Methodscontrasting

confidence: 59%