Crystal Growth of Ca3Nb(Ga1−xAlx)3Si2O14 Piezoelectric Single Crystals with Various Al Concentrations
AbstractCa3Nb(Ga1−xAlx)3Si2O14 (CNGAS) single crystals with various Al concentrations were grown by a micro-pulling-down (µ-PD) method and their crystal structures, chemical compositions, crystallinities were investigated. CNGAS crystals with x = 0.2, 0.4 and 0.6 indicated a single phase of langasite-type structure without any secondary phases. In contrast, the crystals with x = 0.8 and 1 included some secondary phases in addition to the langasite-type phase. Lattice parameters, a- and c-axes lengths, of the langasite-type phase systematically decreased with an increase of Al concentration. The results of chemical composition analysis revealed that the actual Al concentrations in as-grown crystals were almost consistent with the nominal compositions. In addition, there was no large segregation of each cation along the growth direction. View Full-Text
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Yokota, Y.; Kudo, T.; Ohashi, Y.; Medvedev, A.; Kurosawa, S.; Kamada, K.; Yoshikawa, A. Crystal Growth of Ca3Nb(Ga1−xAlx)3Si2O14 Piezoelectric Single Crystals with Various Al Concentrations. Materials 2015, 8, 5597-5605.
Yokota Y, Kudo T, Ohashi Y, Medvedev A, Kurosawa S, Kamada K, Yoshikawa A. Crystal Growth of Ca3Nb(Ga1−xAlx)3Si2O14 Piezoelectric Single Crystals with Various Al Concentrations. Materials. 2015; 8(9):5597-5605.Chicago/Turabian Style
Yokota, Yuui; Kudo, Tetsuo; Ohashi, Yuji; Medvedev, Andrey; Kurosawa, Shunsuke; Kamada, Kei; Yoshikawa, Akira. 2015. "Crystal Growth of Ca3Nb(Ga1−xAlx)3Si2O14 Piezoelectric Single Crystals with Various Al Concentrations." Materials 8, no. 9: 5597-5605.