Crystal growth and property characterization for PIN–PMN–PT ternary piezoelectric crystals

Tian, Jian; Han, Pengdi

doi:10.1142/s2010135x13500276

Cited by 11 publications

(3 citation statements)

References 25 publications

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“…E C is relatively stable within a crystal boule for PIN-PMN-PT crystals of different PIN mol%. The moderately steady PIN content likely led to the stable coercivity for PIN-PMN-PT crystals [24]. In contrast, variations in PMN and PT contents had little effect on crystal E C .…”

Section: Property Of Pin-pmn-ptmentioning

confidence: 96%

Growth and Characterization on PMN-PT-Based Single Crystals

Tian

Han

2014

Crystals

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Lead magnesium niobate-lead titanate (PMN-PT) single crystals have been successfully commercialized in medical ultrasound imaging. The superior properties of PMN-PT crystals over the legacy piezoelectric ceramics lead zirconate titanate (PZT) enabled ultrasound transducers with enhanced imaging (broad bandwidth and improved sensitivity). To obtain high quality and relatively low cost single crystals for commercial production, PMN-PT single crystals were grown with modified Bridgman method, by which crystals were grown directly from stoichiometric melt without flux. For ultrasound imaging application, [001] crystal growth is essential to provide uniform composition and property within a crystal plate, which is critical for transducer performance. In addition, improvement in crystal growth technique is under development with the goals of improving the composition homogeneity along crystal growth direction and reducing unit cost of crystals. In recent years, PIN-PMN-PT single crystals have been developed with higher de-poling temperature and coercive field to provide improved thermal and electrical stability for transducer application.

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Section: Property Of Pin-pmn-ptmentioning

confidence: 96%

Growth and Characterization on PMN-PT-Based Single Crystals

Tian

Han

2014

Crystals

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“…The MnO content distribution in the single crystal boule obtained during this research differs completely from that obtained for a boule grown using the conventional Bridgman growth method which exhibits exponential increase along the growth direction. 29) These results indicate that the continuous feeding of Ceramics B with low MnO content (0.1 wt%) to the initial melt of Ceramics A with high MnO content (0.9 wt%) during crystal growth is effective in achieving the desired MnO content distribution along the growth direction. As expected, MgO content increases slightly from 1.17 to 1.26 wt% to compensate for the change in MnO content, however, the rate of increase is only 8% which is about one fifth that of the MnO content.…”

Section: Resultsmentioning

confidence: 71%

Growth of Mn-doped Pb(In_1/2Nb_1/2)O₃-Pb(Mg_1/3Nb_2/3)O₃-PbTiO₃ single crystal boule with MnO content gradient along growth direction using continuous-feeding Bridgman method and MnO content dependence of ferroelectric and piezoelectric properties

Echizenya,

Noda

2023

Jpn. J. Appl. Phys.

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A Mn-doped Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 single crystal boule was grown by the continuous-feeding Bridgman method to investigate the relationship between the MnO content and the properties such as piezoelectric coefficient and mechanical quality factor. Using high MnO content ceramics as an initially loaded material and the low MnO content ceramics as a continuous-feeding material, a suitable composition distribution was achieved for the investigation (i.e. MnO content monotonically decreases from 0.45 wt% to 0.29 wt% while the content of other elements are stable along the growth direction). The evaluation of the boule revealed that the MnO content greatly affects the properties despite the small variation in MnO content (0.16 wt%). The highest mechanical quality factor Qm31 of 900 along with a high piezoelectric constant d 33 of 840 pC/N was obtained at 0.35 wt% MnO.　The data obtained during this investigation will be beneficial to determine a suitable MnO content for building a practical piezoelectric device

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“…Large sized PMN-PT single crystals are grown mainly using the Bridgman technique [10][11][12]. Based on this technique, researchers have further managed to improve the di/piezoelectric properties of the PMN-PT system through some effective ways [13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Element Segregation and Electrical Properties of PMN-32PT Grown Using the Bridgman Method

Wang

Fang

et al. 2019

Crystals

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A single crystal with nominal composition Pb(Mg 1/3 Nb 2/3 )O 3 -32PbTiO 3 (PMN-32PT) was grown by the Bridgman technique. Crystal orientation was determined using the rotating orientation X-ray diffraction (RO-XRD). Element distribution was measured along different directions using inductively coupled plasma-mass spectrometry (ICP-MS). The effect of the element segregation along axial and radial directions on the electrical properties of the PMN-32PT crystal was investigated. It is indicated that the electrical properties of the samples along the axial direction were strongly dependent on the PT (PbTiO 3 ) content. With the increase of the PT content, the piezoelectric coefficient and remnant polarization were improved. Differently, the electrical properties of the samples along the radial direction were mainly determined by the ratio of the Nb and Mg. The reasons for the element segregation and electrical properties varied with the composition were discussed.Crystals 2019, 9, 98 2 of 10 segregation along the radial direction and the reasons for the Nb and Mg segregation of the PMN-PT single crystals using the Bridgman technique was rarely reported in the literature.In this study, the single crystal with nominal compositional PMN-32PT was grown by the Bridgman technique. The element distribution along the axial and radial directions was confirmed by the inductively coupled plasma-mass spectrometry (ICP-MS). The effect of the element segregation along the axial and radial direction on the electrical properties of the PMN-32PT crystals was investigated. The reasons that the element segregation and electrical properties varied with the composition along the axial direction were also discussed. Experimental ProcedureA PMN-32PT single crystal (Ø25 mm) was grown by the Bridgman method (Figure 1a). The crystal was faint yellow with good transparency. Some stress-induced cracks were presented on the top of the crystal. A sheet with a thickness of 0.8 mm was cut from the as-grown crystal boule along the axial direction (Figure 1b), which showed a poor uniformity in color. The sheet was divided along axial and radial directions with a size of 2 × 2 mm. The specimens were named as test points from Y1 to Y15 along the axial direction and test points from X1 to X4 along the radial direction. The Y9 and X4 test points were the same (shown in Figure 2).

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Crystal growth and property characterization for PIN–PMN–PT ternary piezoelectric crystals

Cited by 11 publications

References 25 publications

Growth and Characterization on PMN-PT-Based Single Crystals

Growth and Characterization on PMN-PT-Based Single Crystals

Growth of Mn-doped Pb(In_1/2Nb_1/2)O₃-Pb(Mg_1/3Nb_2/3)O₃-PbTiO₃ single crystal boule with MnO content gradient along growth direction using continuous-feeding Bridgman method and MnO content dependence of ferroelectric and piezoelectric properties

Element Segregation and Electrical Properties of PMN-32PT Grown Using the Bridgman Method

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Crystal growth and property characterization for PIN–PMN–PT ternary piezoelectric crystals

Cited by 11 publications

References 25 publications

Growth and Characterization on PMN-PT-Based Single Crystals

Growth and Characterization on PMN-PT-Based Single Crystals

Growth of Mn-doped Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 single crystal boule with MnO content gradient along growth direction using continuous-feeding Bridgman method and MnO content dependence of ferroelectric and piezoelectric properties

Element Segregation and Electrical Properties of PMN-32PT Grown Using the Bridgman Method

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Growth of Mn-doped Pb(In_1/2Nb_1/2)O₃-Pb(Mg_1/3Nb_2/3)O₃-PbTiO₃ single crystal boule with MnO content gradient along growth direction using continuous-feeding Bridgman method and MnO content dependence of ferroelectric and piezoelectric properties