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Development of the BaO-Mg(Zn) O-Ta_2O_5 ternary phase diagram for single crystal growth of the Ba(Mg_<1/3> Ta_<2/3>) O_3 and Ba(Zn_<1/3> Ta_<2/3>) O_3 using off-stoichiometric composition method

Research Project

Project/Area Number 21560025
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Applied materials science/Crystal engineering
Research InstitutionNational Institute for Materials Science

Principal Investigator

KOLODIAZHNYI Taras  独立行政法人物質・材料研究機構, 超伝導物性ユニット, 主任研究員 (80469767)

Project Period (FY) 2009 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2009: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords誘電セラミックス / 複合ペロブスカイト / マイクロ波誘電損失 / 誘電共振器 / incipient ferroelectric / dielectric / magnetoelectric / microwave dielectric resonator / synthesis / phase diagram / thermodynamic equilibria / single crystal / microwave / dielectric resonator / dielectric loss
Research Abstract

We completed investigation of the phase relation in the BaO-MgO(ZnO)-Ta_2O_5 system equilibrated at 1450℃. In the BaO-MgO-Ta2O5 system we found three ternary phases, namely 3:1:1 perovskite Ba_3MgTa_2O_9, 9:1:7 TTB(tetragonal tungsten bronze)-type Ba_9MgTa_<14> O_<45> and 4:1:5 Ba_4MgTa_<10> O_<30> with close relation to the tungsten bronze structure. Another ternary phase, Ba10Mg0.25Ta7.9O30, with 10 layer hexagonal perovskite structure can be only obtained after equilibration at 1600℃. The Ba_9MgTa_<14> O_<45> phase shows quantum ferroelectric properties.
We have also clarified several contradictory reports related to the ternary and binary phases in the BaO-MgO-Ta_2O_5 composition field. For example, we found no evidence of the hexagonal Ba_9Mg_4Ta_<20> O_<63> phase that was claimed by R. S. Roth[` Phase Equilibria of Experimental Ceramic Systems', NIST Project Report, Report No.1, Contract No.SB1341-02-W-0787, National Institute of Standards and Technology, Ceramics Division ; Gaithersburg, Maryland ; 2 pp.(2003)], nor we can confirm the existence of the Ba_7Ta_6O_<22> phase reported by several authors[J. S. Kim, J.-W. Kim, C. I. Cheon, Y.-S. Kim, S. Nahm, J. D. Byun, J. Eur. Ceram. Soc., 2001, 21, 2599 ; C.-M. Cheng, Y.-T. Hseih, C.-F. Yang, Ceram. Int., 2002, 28, 255 ; X. M. Chen, Y. Suzuki, N. Sato, J. Mater. Sci.: Materials in Electronics, 1994, 5, 244]. The TTB type Ba_9MgTa_<14> O_<45> forms along the BaTa_2O_6. Ba3MgTa2O9 join. We found that only hexagonal polymorph of the BaTa_2O_6 phase exists along the Mg_4Ta_2O_9-BaTa_2O_6 tie line.
In the BaO-ZnO-Ta_2O_5 system we could not confirm the existence of the Ba_4ZnTa_<10> O_<30> compound. Instead, a Ba_3ZnTa_8O_<24> phase has been found along the ZnTa_2O_6-BaTa_2O_6 tie line. Using single crystal structural analysis we have demonstrated that the Ba_3ZnTa_8O_<24> phase is isotypical with the Ba_4MgTa_<10> O_<30> phase and discussed the reasons for the difference in the chemical composition of these phases.

Report

(4 results)
  • 2011 Annual Research Report   Final Research Report ( PDF )
  • 2010 Annual Research Report
  • 2009 Annual Research Report
  • Research Products

    (20 results)

All 2011 2010 2009

All Journal Article (17 results) (of which Peer Reviewed: 17 results) Presentation (1 results) Patent(Industrial Property Rights) (2 results)

  • [Journal Article] Novel incipient ferroelectrics based on Ba_4MNb_xTa_<10-x> O_<30> where M=Zn, Mg, Co, Ni2011

    • Author(s)
      L. Wang, D. A. Rusakov, Y. Sakka, Y. Mozharivskyj, T. Kolodiazhnyi
    • Journal Title

      Chem. Mat

      Volume: 23 Pages: 2586-2594

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Spin resonance in EuTiO_3 probed by time-domain GHz ellipsometry2011

    • Author(s)
      J. L. M. van Mechelen, D. van der Marel, I. Crassee, T. Kolodiazhnyi
    • Journal Title

      Phys. Rev. Lett

      Volume: 106 Pages: 217601-217601

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Spin-flop driven magneto-dielectric effect in Co_4Nb_2O_92011

    • Author(s)
      T. Kolodiazhnyi, H. Sakurai, N. Vittayakorn
    • Journal Title

      Appl. Phys. Lett

      Volume: 99 Pages: 132906-132906

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Novel incipient ferroelectrics based on Ba4MNbxTa10-xO30 where M=Zn, Mg, Co, Ni2011

    • Author(s)
      L.Wang, D.A.Rusakov, Y.Sakka, Y.Mozharivskyj, T.Kolodiazhnyi
    • Journal Title

      Chemistry of Materials

      Volume: 23 Pages: 2586-2594

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Coexistence of A-and B-site vacancy compensation in La-doped Sr_<1-x> Ba_xTiO_32010

    • Author(s)
      L. Wang, Y. Sakka, Y. Shao, G. Botton, T. Kolodiazhnyi
    • Journal Title

      J. Am. Ceram. Soc

      Volume: 93 Pages: 2903-2908

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Magnetodielectric effect in EuZrO_32010

    • Author(s)
      T. Kolodiazhnyi, K. Fujita, L. Wang, Y. Zong, K. Tanaka, Y. Sakka, E. Takayama-Muromachi
    • Journal Title

      Appl. Phys. Lett

      Volume: 96 Pages: 252901-252901

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Persistence of ferroelectricity in BaTiO_3 through the insulator-metal transition2010

    • Author(s)
      T. Kolodiazhnyi, M. Tachibana, H. Kawaji, J. Hwang, E. Takayama-Muromachi
    • Journal Title

      Phys. Rev. Lett

      Volume: 104 Pages: 147602-147602

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Temperature and frequency dependence of dielectric loss of Ba(Mg_<1/3> Ta_<2/3>) O_3 microwave ceramics2010

    • Author(s)
      T. Shimada, K. Ichikawa, T. Minemura, T. Kolodiazhnyi, J. Breeze, N. McN. Alford and G. Annino
    • Journal Title

      J. Eur. Ceram. Soc

      Volume: 30 Pages: 331-334

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Magnetodielectric effect in EuZrO_32010

    • Author(s)
      T.Kolodiazhnyi, K.Fujita, L.Wang, Y.Zong, K.Tanaka, Y.Sakka, E.Takayama-Muromachi
    • Journal Title

      Applied Physics Letters

      Volume: 96

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Persistence of ferroelectricity in BaTiO_3 through the insulator-metal transition2010

    • Author(s)
      T.Kolodiazhnyi, M.Tachibana, H.Kawaji, J.Hwang, E.Takayama-Muromachi
    • Journal Title

      Physical Review Letters

      Volume: 104 Pages: 147602-147602

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Temperature and frequency dependence of dielectric loss of Ba(Mg_<1/3>Ta_<2/3>)O_3 microwave ceramics2010

    • Author(s)
      T.Shimada, K.Ichikawa, T.Minemura, T.Kolodiazhnyi, Jonathan Breeze, Neil McN.Alford, Giuseppe Annino
    • Journal Title

      JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 30

      Pages: 331-334

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Composition, structure, bonding and thermoelectric properties of "CuT_2P_3" and "CuT_4P_3", members of the T_<1-x>(CuP_3)_x series with T being Si and Ge2010

    • Author(s)
      Peng Wang, Faraz Ahmadpour, Taras Kolodiazhnyi, Alfred Kracher, Lachlan M.D.Cranswick, Yurij Mozharivskyj
    • Journal Title

      DALTON TRANSACTIONS 39

      Pages: 1105-1112

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spin Ordering in Mn-Doped KTaO_3?2010

    • Author(s)
      Matjaz Valant, Taras Kolodiazhnyi, Anna-Karin Axelsson, Gunda Santosh Babu, Neil M.Alford
    • Journal Title

      CHEMISTRY OF MATERIALS 22

      Pages: 1952-1954

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Persistence of Ferroelectricity in BaTiO_3 through the Insulator-Metal Transition2010

    • Author(s)
      T.Kolodiazhnyil, ^*, M.Tachibanal, H.Kawaji2, J.Hwang3, E.Takayama-Muromachil
    • Journal Title

      PHYSICAL REVIEW LETTERS 104

      Pages: 147602-147602

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Phase equilibria in the BaO-MgO-Ta_2O_5 system2009

    • Author(s)
      T. Kolodiazhnyi, A. A. Belik, T. C. Ozawa, E. Takayama-Muromachi
    • Journal Title

      J. Mat. Chem

      Volume: 19 Pages: 8212-8215

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Development of Al_2O_3-TiO_2 composite ceramics for high-power millimeter-wave applications2009

    • Author(s)
      T. Kolodiazhnyi, G. Annino, M. Spreitzer, T. Taniguchi, R. Freer, F. Azough, A. Panariello, W. Fitzpatrick
    • Journal Title

      Acta Materialia

      Volume: 57 Pages: 3402-3409

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Phase equilibria in the BaO-MgO-Ta_2O_5 system2009

    • Author(s)
      Taras Kolodiazhnyi, Alexei A Belik, Tadashi Ozawa, Eiji Muromachi
    • Journal Title

      JOURNAL OF MATERIALS CHEMISTRY 19

      Pages: 8212-8215

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Presentation] Subsolidus ternary phase diagram in the BaO-MgO-Ta2O5 system2009

    • Author(s)
      T. Kolodiazhnyi
    • Organizer
      8^<th> Pacific Rim Conference on Ceramic and Glass Technology
    • Place of Presentation
      British Columbia, Vancouver, Canada
    • Related Report
      2011 Final Research Report
  • [Patent(Industrial Property Rights)] セラミックス誘導体及びその製造方法2010

    • Inventor(s)
      T. Kolodiazhnyi
    • Industrial Property Rights Holder
      (独)物質・材料研究機構
    • Industrial Property Number
      2010-193245
    • Filing Date
      2010-08-31
    • Related Report
      2011 Final Research Report
  • [Patent(Industrial Property Rights)] セラミック誘導体及びその製造方法2010

    • Inventor(s)
      Taras Kolodiazhnyi
    • Industrial Property Rights Holder
      物質・材料研究機構
    • Industrial Property Number
      2010-193245
    • Filing Date
      2010-08-31
    • Related Report
      2010 Annual Research Report

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Published: 2009-04-01   Modified: 2016-04-21  

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