Characterization of Mn Doped PIN-PMN-PT Single Crystals and Development of Quaternary Single Crystal
Abstract
Mn doped Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 (Mn:PIN-PMN-PT) single crystals are promising candidates for Navy SONAR applicati ons. It was reported that they show high mechanical quality factor (Qm) which can deliver low power loss. Therefore high Qm material s are desirable for high power applications such as underwater sonars. However, there has been no detailed research reported for the relationship between the compositions and the properties of this material. In addition, the effect of the Mn content is especially uncertain because of its very large variation within a single crystal boule grown by the conventional Bridgman method. JFE Mineral ( JFEM) has successfully developed the Continuous Feeding Bridgman (CFB) method that enables the growth of single crystals with a unif orm composition. So JFEM can systematically evaluate this relationship using single crystals with the valid compositions. The single crystals and the data to be obtained during this research should be beneficial for the development of quality transducers. Quaterna ry single crystals have been rarely studied. It is expected that the main reasons are the difficulty with crystal growth and the lar ge composition variation due to the increased components. On the other hand, JFEM confirmed the limitation of ternary (PIN-PMN-PT) s ingle crystals for the property enhancement. Therefore it is worth investigating the quaternary single crystals for enhanced propert ies compared to those achieved with PIN-PMN-PT single crystals. JFEM focuses on Pb(Yb1/2Nb1/2)O3-Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-P bTiO3 (PYN-PIN-PMN-PT) single crystals in this research. Since PYN-PT ceramics have higher phase transition temperatures than those of PIN-PT ceramics, it is expected that the PYN-PIN-PMN-PT single crystals have better thermal stability than that of the PIN-PMN-PT single crystals. High thermal stability is one of the desirable characteristics for piezoelectric devices such as Naval SONAR from a view of the reliability. The effectiveness of the PYN-PIN-PMN-PT single crystals should be revealed by the crystal growth study an d the composition engineering.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Oct 22, 2021
- Source ID
- N629092112065
Entities
People
- Kazuhiko Echizenya
Organizations
- Office of Naval Research
- United States Navy