Method of making ternary piezoelectric crystals

Details Method of making ternary piezoelectric crystals Method of making ternary piezoelectric crystals

2011-07-05

2011-07-05

Koslow, C. Melissa (Department: 1734)

Compositions

Piezoelectric

C252S06290R, C117S948000, C117S949000, C117S081000

Reexamination Certificate

active

07972527

ABSTRACT:
A ternary single crystal relaxor piezoelectric grown from a novel melt using the Vertical Bridgeman method. The ternary single crystals are characterized by a Curie temperature, Tc, of at least 150° C. and a rhombohedral to tetragonal phase transition temperature, Trt, of at least about 110° C. The ternary crystals further exhibit a piezoelectric coefficient, d33, in the range of at least about 1200-2000 pC/N.

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Luo J et al., “Elastic, Piezoelectric and Dielectric Properties of PIN-PMN-PT Crystals Grown by Bridgman Method”, Ultrasonics Symposium, 2008, IUS 2008, IEEE, IEEE, Piscataway, NJ, USA, Nov. 2, 2008, pp. 261-264, XP031443375, ISBN: 978-1-4244-2428-3.

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