Piezoelectric and dielectric properties of calcium and samarium modified lead titanate ceramics for hydroacoustic applications

Rittenmyer, Kurt M.; Ting, Robert Y.

doi:10.1080/00150199008008914

Cited by 64 publications

(18 citation statements)

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“…A high spontaneous polarization, a low aging rate, and a relatively low mechanical quality factor, Q m make PbTiO 3 -based materials attractive for many bulk, thin film, composite and single crystal applications [3][4][5]. Additional applications include pyroelectric detectors [6,7], hydrophones [8], and 0-3 composites [9]. However due to its large lattice anisotropy (c/a = 1.064), it is very difficult to sinter in pure form as it becomes fragile while cooling through Curie temperature as each ceramic grain changes its dimensions as material undergoes transition from the paraelectric into ferroelectric phase.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and electron properties of Sm modified lead calcium titanate ceramics

Singh

Prakash²,

Raina

2010

Journal of Alloys and Compounds

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Section: Introductionmentioning

confidence: 99%

Microstructure and electron properties of Sm modified lead calcium titanate ceramics

Singh

Prakash²,

Raina

2010

Journal of Alloys and Compounds

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“…Some of the important solid solutions based on PbTiO 3 with large technological applications are Pb (Zr 1-x T x )O 3 [11][12][13][14], Pb 1-x Sr x TiO 3 [15,16], Pb 1-x Ca xTiO 3 (PCT) [17][18][19][20][21][22][23], etc. With increasing demand for smarter ceramics, pressure dependent studies in some of these PbTiO 3 based ceramics have attained significance [24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Pressure dependent phase transitions in (Pb,Ca)TiO3: Determination of structure using high pressure synchrotron X-ray and Raman studies

et al. 2011

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Pressure dependent studies on technologically important ferroelectric material Pb 0.70 Ca 0.30 TiO 3 show the occurrence of a new hitherto unreported pressure dependent phase transition around 4 GPa. In the pressure range 4-14 GPa, the parent tetragonal (P4mm) phase of Pb 0.70 Ca 0.30 TiO 3 transforms in to a monoclinic (Cm) phase before attaining its paraelectric cubic (Pm3m) phase around 15 GPa. High pressure Raman studies reveal the presence of a critical pressure above which the ferroelectric phase starts to reappear in the paraelectric phase. This critical pressure is found to be much lower than the critical pressure observed in pure PbTiO 3 . Possible reasons for this lowering of the critical pressure are presented.

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“…Thus, sufficiently high piezoelectric coefficients and coupling factors could be obtained after poling [5]. PCT ceramics have been extensively investigated in view of high frequency and hydrophone applications [5][6][7]. In particular, it has been found that the longitudinal piezoelectric coefficient (d 33 ) significantly increases with increasing Ca content [6].…”

Section: Introductionmentioning

confidence: 99%

“…PCT ceramics have been extensively investigated in view of high frequency and hydrophone applications [5][6][7]. In particular, it has been found that the longitudinal piezoelectric coefficient (d 33 ) significantly increases with increasing Ca content [6]. Similarly, a PCT film is better than PbTiO 3 films in pyroelectric infrared detector performance [8].…”

Section: Introductionmentioning

confidence: 99%

Structure and Electrical Properties of Lead Calcium Titanate Nanocrystalline Thin Films Prepared by a Sol-Gel Process with Rapid Thermal Annealing

Tang

Ding

Zhang

2001

phys. stat. sol. (a)

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Nanocystalline (Pb 0.76 Ca 0.24 )TiO 3 (PCT) thin films were grown on Pt/Ti/SiO 2 /Si(100) substrates by a modified sol-gel process. Randomly oriented tetragonal PCT thin films have been obtained. Atomic force microscopy reveals that the films are dense, have a smooth surface, and the grain size is about 40 nm for polycrystalline PCT film on a Pt/Ti/SiO 2 /Si(100) substrate annealed at 650 C by rapid thermal annealing. The electrical measurements were conducted on PCT films in metal-ferroelectric-metal (MFM) capacitor configuration. The results show that the film exhibited good ferroelectrity with remanent polarization and coercive electric field of 36 mC/cm 2 and 240 kV/cm, respectively. At 100 kHz, the dielectric constant and dielectric loss of the film are 295 and 0.027, respectively, for thin films of 200 nm thickness.

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Piezoelectric and dielectric properties of calcium and samarium modified lead titanate ceramics for hydroacoustic applications

Cited by 64 publications

References 0 publications

Microstructure and electron properties of Sm modified lead calcium titanate ceramics

Microstructure and electron properties of Sm modified lead calcium titanate ceramics

Pressure dependent phase transitions in (Pb,Ca)TiO3: Determination of structure using high pressure synchrotron X-ray and Raman studies

Structure and Electrical Properties of Lead Calcium Titanate Nanocrystalline Thin Films Prepared by a Sol-Gel Process with Rapid Thermal Annealing

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