Journal ArticleDOI
An Improved Phased Array Ultrasonic Probe Using 0.91Pb(Zn1/3Nb2/3)O3?0.09PbTiO3 Single Crystal
Shiroh Saitoh,Takashi Takeuchi,Tsuyoshi Kobayashi,Kouichi Harada,Senji Shimanuki,Yohachi Yamashita +5 more
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TLDR
In this paper, a 96-channel phased array probe for echocardiography using a single-plate, 0.91Pb(Zn1/3Nb2/3)O3-0.09PbTiO3 (PZNT 91/9) single-crystal transducer with dimensions of 14×20 mm has been fabricated to realize greater sensitivity and broader bandwidth properties.Abstract:
A 96-channel phased array probe for echocardiography using a single-plate, 0.91Pb(Zn1/3Nb2/3)O3–0.09PbTiO3 (PZNT 91/9) single-crystal transducer with dimensions of 14×20 mm has been fabricated to realize greater sensitivity and broader bandwidth properties. The center frequency of the probe, 3.5 MHz, was selected to cover the bandwidths of two conventional lead zirconate titanate (PZT) ceramic probes with center frequencies of 2.5 and 3.75 MHz. A solder paste was used to connect a flexible printed circuit to the PZNT 91/9 transducer. The echo amplitude of the PZNT 91/9 probe is about 6 dB higher than that of the two PZT probes, and the fractional bandwidths are 30 and 25 percentage points wider, respectively. The B-mode image quality of the PZNT 91/9 probe is comparable to that of the two PZT probes, and the Doppler sensitivity of the PZNT 91/9 probe is almost equal to that of the 2.5 MHz PZT probe, which means that the PZNT 91/9 probe matches both the penetration of the 2.5 MHz PZT probe and the resolution of 3.75 MHz PZT probe.read more
Citations
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Journal ArticleDOI
Relaxor-based ferroelectric single crystals: growth, domain engineering, characterization and applications.
Enwei Sun,Wenwu Cao +1 more
TL;DR: This article intends to provide a comprehensive review on the development of relaxor-PT single crystals, spanning material discovery, crystal growth techniques, domain engineering concept, and full-matrix property characterization all the way to device innovations.
Journal ArticleDOI
High performance single crystal piezoelectrics: applications and issues
TL;DR: Relaxor-based single crystal piezoelectrics began to live up to their promise of providing unprecedented increase of bandwidth, sensitivity, and high energy density for advanced P2P transducers and actuator applications as mentioned in this paper.
Journal ArticleDOI
Relaxor-PT single crystals: Observations and developments
TL;DR: In this paper, a survey of relaxor-PT-based ferroelectric single crystal systems with respect to their temperature usage range is presented, and general trends of dielectric and piezoelectric properties are discussed in relation to their respective TC/TRT.
Journal ArticleDOI
High-temperature solution growth and characterization of the piezo-/ferroelectric (1−x)Pb(Mg1/3Nb2/3)O3–xPbTiO3 [PMNT] single crystals
M Dong,Zuo-Guang Ye +1 more
TL;DR: In this article, the effects of chemical and thermodynamic parameters on the growth results were systematically studied and the optimum flux composition and concentration was found to be (49% PbO+1/3 Nb 2 O 3 ), which led to the stabilization of the perovskite crystals against the pyrochlore phase, and to the growth of high-quality PMNT crystals suitable for subsequent characterization.
Journal ArticleDOI
High-homogeneity High-performance flux-grown Pb(Zn1/3Nb2/3)O3–(6–7)%PbTiO3 single crystals
Leong-Chew Lim,K.K. Rajan +1 more
TL;DR: In this article, high-quality PZN-PT single crystals of a range of compositions have been reproducibly grown from PbO flux with local point cooling and by engineering the isotherms of the solution to promote controlled (001) layer growth of the crystals.
References
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Journal ArticleDOI
Dielectric and Piezoelectric Properties of 0.91Pb(Zn1/3Nb2/3)O3-0.09PbTiO3 Single Crystals
TL;DR: In this article, the dielectric, piezoelectric and elastic properties of 0.91(PbZn1/3Nb2/3)O3−0.09PbTiO3 single crystals have been investigated as functions of temperature and applied electric field.
Journal ArticleDOI
Characteristics of relaxor-based piezoelectric single crystals for ultrasonic transducers
Seung-Eek Park,Thomas R. Shrout +1 more
TL;DR: In this article, relaxor-based materials with the general formula, Pb(B/sub 1/3/Nb/sub 2/3/)O/sub 3/PbTiO/Sub 3/ (PZN-PT), have been shown to have superior dielectric and piezoelectric performance compared to that of PZT materials.
Journal ArticleDOI
Improved Growth of Large Lead Zinc Niobate Titanate Piezoelectric Single Crystals for Medical Ultrasonic Transducers
TL;DR: In this paper, a large PZN-PT binary system was successfully obtained using a conventional flux method and a suitable ratio of PZn-PT:PbO flux.
Journal ArticleDOI
Crystal Growth and Electrical Properties of Pb((Zn1/3Nb2/3)0.91Ti0.09)O3 Single Crystals Produced by Solution Bridgman Method
TL;DR: In this article, the Bridgman method was used to grow PZNT 91/9 single crystals with a PbO flux, which were used for array-type transducers used in echocardiographic equipment.
Journal ArticleDOI
Single Crystal of the Pb(Zn1/3Nb2/3)O3–PbTiO3 System Grown by the Vertical Bridgeman Method and Its Characterization
TL;DR: In this paper, a large single crystal (about 30 mm in diameter by 20 mm long) of the Pb(Zn1/3Nb2/3)O3-PbTiO3 solid solution system was successfully grown using the vertical Bridgeman method and its properties were investigated.
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Dielectric and Piezoelectric Properties of 0.91Pb(Zn1/3Nb2/3)O3-0.09PbTiO3 Single Crystals
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