Growth of Pb[(Zn1/3Nb2/3)0.91Tio.09]03 Single Crystal of Ultrasonic Transducer for Medical Application

Abstract

Single crystals of Pb[(Znl/₃Nb₂/₃)0o₉₁Tio₀₀₉]0₃ (PZNT 91/9) were grown by the Solution Bridgman method using a PbO-based flux. The crystals were about 40 m min diameter X 25 mm in size and had a light brown color. The properties of these single crystals satisfy the requirements for array-type transducers in echocardio-graphs, a type of medical diagnostic equipment. Compared with other piezoelectric materials, PZNT 91/9 is a superior piezoelectric material for ultrasonic diagnostic cardiac probes.

Get full access to this article

View all access options for this article.

References

1. J. Kuwata , K. Uchino , and S. Nomura , 1982, "Dielectric and Piezoelectric Properties of 0.9lPb(Zn1/3Nb2/3)03-0.09PbTiO3 Single Crystals," Jpn. J. Appl. Phys., 21:1298-1302.

2. T. R. Shrout , Z. P. Chang , N. Kim , and S. Markgraf , 1990, "Dielectric Behavior of Single Crystals Near the (l-x) Pb(Mgl/3Nb2/3)03-(x) PbTiO3 Morphotropic Phase Boundary," Ferroelectric Letters, 12:63-69.

3. S. Saitoh , T. Kobayashi , K. Harada , S. Shimanuki , and Y. Yamashita , 1998, Proceedings of the 1998 SPIE Symposium on Ultrasonic Transducer Engineering, "Phased array ultrasonic probe using Pb(Znl/3Nb2/3)03-PbTiO3 single crystal," 3341:264-271.

4. T. Kobayashi , S. Shimanuki , S. Saitoh , and Y. Yamashita , 1997, "Improved Growth of Large Lead Zinc Niobate Titanate Piezoelectric Single Crystals for Medical Ultrasonic Transducers," Jpn. J. Appl. Phys., 36(9B):6035-6038.

5. S. Saitoh , T. Takashi , T. Kobayashi , K. Harada , S. Shimanuki , and Y Yamashita , 1998, "A 3.5 MHz Phased array Probe Using 0.9lPb(Zn1/3Nb2/3)03-0.09PbTiO3 single crystal," Proceedings of the 1998 IEEE Ultrasonics Symposium: 1847-1850.

6. S. Saitoh , T. Takeuchi , T. Kobayashi , K. Harada , S. Shimanuki , and Y. Yamashita 1999, IEEE Transaction on Ultrasonics, Ferroelectrics, and Frequency control, "A 3.7 MHz Phased array Probe Using 0.9lPb(Znj/3Nb2/3)03-0.09PbTiO3 single crystal," 414-421.

7. K. Harada , S. Shimanuki , T. Kobayashi , S. Saitoh and Y. Yamashita , 1998

"Crystal Growth and Electrical Properties of Pb[(Znl/3Nb2/3) 0.91Tio 09]03 Single Crystals Produced by Solution Bridgman Method,"

J. Am. Ceram. Soc., 81(11):2785-2788.

8. S. Shimanuki , S. Saitoh , and Y Yamashita , 1998

"Single Crystal of Pb(Znl/3Nb2/3)03-PbTiO3 System Grown by the Vertical Bridgman Method and Its Characterization,"

Jpn. J. Appl. Phys. 37:3382-3385

9. K. Harada , S Shimanuki , and Y. Yamashita , 1996, "Effect of Sintered Ag Electrode on Electrical Properties of Pb[(Zn1/3Nb2/3)0 .9Ti.009]03 Single Crystal," Proceedings of 16th Electronics Division Meeting of The Ceramic Society of Japan: 95-96 (in Japanese).

10.

10. K. Harada , S. Shimanuki , S. Saitoh , and Y. Yamashita , 1997, "Effect of Electrode Material on The Dielectric and Piezoelectric Properties of a Pb(Zn1/3Nb2/3)0.9jTi0 09]03 Single Crystal," Proceedings of 1997 Japan International Electronic Manufacturing Technology Symposium: 348-351.

11.

11. K. Harada , S Shimanuki , S. Saitoh , and Y. Yamashita , 1998, "Effect of Fired Ag Electrodes on Electrical Properties of a Pb[(Zn1/3Nb2/3)0 91TiO 09]03 Single Crystal," J. Ceram. Soc. Jpn., 106(l):116-118.

12.

12. K. Harada , S. Shimanuki , T. Kobayashi , S. Saitoh , and Y. Yamashita , 1999, "Dielectric and Piezoelectric Properties of Pb[(Zn1 3Nb2/3)0.9jTi0 o9]03 Single Crystal Grown by Solution Bridgman Method," Key Engineering Materials, 157-158:95-102.