Development of Crystal Growth Technology of Shaped Langasite-type Piezoelectric Crystals by Micro-Pulling-Down Method

2013 Fiscal Year Final Research Report

• Project/Area Number: 23750234
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Inorganic industrial materials
• Research Institution: Tohoku University
• Principal Investigator: YUUI Yokota 東北大学, 未来科学技術共同研究センター, 准教授 (60517671)
• Project Period (FY): 2011 – 2013
• Keywords: 結晶・多結晶材料

Research Abstract

Shape-controlled langasite-type piezoelectric single crystals were grown by micro-pulling-down method and the physical properties of grown crystals were investigated. Columnar, plate and tube-shaped crystals with a-axis and c-axis in growth direction were grown and the diameters of grown columnar-shaped crystals were controlled approximately 3 mm from initial to later part. The grown crystals without cracks indicated relatively high crystallinities and a single phase of langasite-type structure in the powder XRD patterns. The piezoelectric constant d11 of CNGS crystal indicated 3.98 pC/N which was well accorded with the previous report.

Research Products

• [Journal Article] Effects of growth atmosphere on crystal growth and optical properties for Ca_3NbGa_3Si_2O_<14> single crystals (2013)
  • Author(s): Y. Yokota, M. Sato, K. Tota, S. Kurosawa, K. Onodera, A. Yoshikawa
  • Journal Title: Ferroelectrics Volume: 449 Pages: 147-153
  • DOI: 10.1080/00150193.2013.822780
  • Peer Reviewed
• [Journal Article] Annealing effects for Ca_3NbGa_3Si_2O_<14> piezoelectric single crystals grown by micro-pulling-down method (2013)
  • Author(s): Y. Yokota, M. Kitahara, S. Kurosawa, M. Sato, K. Tota, K. Onodera, A. Yoshikawa
  • Journal Title: Ferroelectrics Volume: 445 Pages: 1-5
  • DOI: 10.1080/00150193.2013.843383
  • Peer Reviewed
• [Journal Article] Fabrication and physical properties of Ca_3Nb(Ga_<1->xAl_x)_3Si_2O_<14> piezoelectric materials (2013)
  • Author(s): M. Kitahara, Y Yokota, A. Medvedev, Y. Futami, S. Kurosawa,Y. Fujimoto, M. Sato, K. Tota, K. Onodera, A. Yoshikawa
  • Journal Title: Ferroelectrics Volume: 456 Pages: 107-112
  • DOI: 10.1080/00150193.2013.846667
  • Peer Reviewed
• [Journal Article] Growth of column-shaped and plate-like langasite-type piezoelectric single crystals and their physical properties (2013)
  • Author(s): Y. Yokota, M. Sato, V. Chani, Y. Futami, K. Tota, S. Kurosawa, K. Onodera, A. Yoshikawa
  • Journal Title: Sensors and Actuators A (2012) Volume: 200 Pages: 56-59
  • DOI: 10.1016/j.sna.2012.10.017
  • Peer Reviewed
• [Journal Article] Shaped crystal growth of langasite-type piezoelectric single crystals and their physical properties (2012)
  • Author(s): Y. Yokota, A. Yoshikawa, Y. Futami, M. Sato, K. Tota, K. Onodera, T. Yanagida
  • Journal Title: IEEE Trans. Ultrason. Ferroelectrics. Freq. Contr Volume: 59 Pages: 1868-1871
  • DOI: 10.1109/TUFFC.2012.2398
  • Peer Reviewed
• [Journal Article] Shape-controlled crystal growth of Sr_3NbGa_3Si_2O_<14> and Sr_3TaGa_3Si_2O_<14> piezoelectric single crystals by micro-pulling-down method (2012)
  • Author(s): Y. Yokota, Y. Futami, M. Sato, K. Tota, K. Onodera, T. Yanagida, A. Yoshikawa
  • Journal Title: IEEE Trans. Ultrason. Ferroelectrics. Freq. Contr Volume: 59 Pages: 1864-1868
  • DOI: 10.1109/TUFFC.2012.2397
  • Peer Reviewed
• [Journal Article] Crystal growth and physical properties of shape-controlled La_3Ta_<0.5>Ga_<5.5>O_<14> single crystals by micro-pulling-down method (2012)
  • Author(s): Y. Yokota, M. Sato, Y. Futami, K. Tota, T. Yanagida, K. Onodera, A. Yoshikawa
  • Journal Title: J. Cryst. Growth Volume: 352 Pages: 147-150
  • DOI: 10.1016/j.jcrysgro.2012.01.012
  • Peer Reviewed
• [Journal Article] Study on phase diagram of Ca_3NbGa_3Si_2O_<14> piezoelectric material by differential thermal analysis and X-ray diffraction measurement (2012)
  • Author(s): Y. Futami, Y. Yokota, M. Sato, K. Tota, J. Pejchal, T. Yanagida, K. Onodera, A. Yoshikawa
  • Journal Title: Key Engineering Materials Volume: 508 Pages: 247-252
  • DOI: 10.4028/www.scientific.net/KEM.508.247
  • Peer Reviewed
• [Journal Article] Growth of Shape-Controlled Ca_3NbGa_3Si_2O_<14> and Sr_3NbGa_3Si_2O_<14> Single Crystals by Micro-Pulling-Down Method and Their Physical Properties (2011)
  • Author(s): Y. Yokota, M. Sato, K. Tota, Y. Futami, T. Yanagida, K. Onodera, A. Yoshikawa
  • Journal Title: Jpn. J. Appl. Phys Volume: 50
  • DOI: 10.1143/JJAP.50.09ND03
  • Peer Reviewed
• [Presentation] Development of functional single crystals by micro-pulling-down method C35 (2013)
  • Author(s): Y.Yokota, S.Kurosawa, K.Nishimoto, M.Sato, H.Goto, K.Shikimura, K.Tota, T.Ito, T.Kagaya, K.Onodera, K.Kamada, A.Yoshikawa
  • Organizer: 2013 Collaborative Conference on Crystal Growth (3CG)
  • Place of Presentation: Cancún, Mexco
  • Year and Date: 2013-06-12
  • Invited
• [Presentation] Material Research of Scintillator Crystals and Growth of Shape-controlled Crystals by Micro-Pulling-Down Method (2011)
  • Author(s): Y.Yokota, A.Yamajia, Y.Futami, Y.Fujimoto, T.Yanagida, M.Sato, K.Tota,K.Onodera, N.Kawaguchi, K.Fukuda, D.Totsuka. A.Yoshikawa
  • Organizer: 2011 KACG
  • Place of Presentation: South Korea
  • Year and Date: 2011-10-14
  • Invited
• [Presentation] Shaped crystal growth of langasite-type piezoelectric single crystals and their physical properties Yoshikawa (2011)
  • Author(s): Y.Yokota, M.Sato, K.Tota, Y.Futami1, A.Yamaji, T.Yanagida, K.Onodera
  • Organizer: IEEE 20th ISAF-PFM
  • Place of Presentation: Canada
  • Year and Date: 2011-07-30
  • Invited