• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Processing of Functional Bioceramics by Dispersion of Piezoelectric Particles

Research Project

Project/Area Number 12650680
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Composite materials/Physical properties
Research InstitutionTokyo University of Agriculture and Technology

Principal Investigator

NOMA Tatsuo  Tokyo University of Agriculture and Technology, International Student Center, Professor, 留学生センター, 教授 (20180771)

Project Period (FY) 2000 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥3,800,000 (Direct Cost: ¥3,800,000)
Fiscal Year 2002: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2001: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2000: ¥2,300,000 (Direct Cost: ¥2,300,000)
KeywordsHydroxyapatite / Barium Titanate / Piezoelectrics / Bioceramics / Composite / Particle dispersion / Electric signal / Stress application / コンポジツト / 強誘電体 / インプラント材 / ニオブ酸リチウム / 電気的性質 / インプラント材料
Research Abstract

A hydroxyapatite based composite ceramics with a dispersion inorganic particles which have up to 100 times piezoelectric constant of collagen were fabricated. The development of functional bioceramics to cause a micro current under stress application was examined. The results of the project are summarized as follows.
1. Ferroelectric (barium titanate) particle and hydroxyapatite particles were synthesized under hydrothermal conditions using autoclave. The solid state reaction between the ferroelectric phase and the hydroxyapatite phase was examined clarified at various conditions.
2. Composite ceramics with a dispersion of the barium titanate were sintered. The microstructures, the phases present and the composition were examined. The chemical reactivity and the dielectric properties were also evaluated.
3. The electric signal generated when a stress was applied by a Vickers indentation in air was analyzed, and the conversion mechanism from the mechanical signal to an electric signal was discussed from the viewpoint of an electro-mechanical of the dispersed particles.
4. Monolithic barium titanate ceramics and hydroxyapatite ceramics were synthesized A layer like structure was assembled by heating the two ceramics under contact. The reaction along the interface were examined.
5. The composite is soaked in a simulated body liquid to examine the bio-affinity. The bio-affinity was indirectly evaluated from the state observation of the apatite aspect (Approximately correspond to the artificial bone) generated to the surroundings.
6. The attenuation behavior of an electric signal when the electric signal generated when the stress was applied by a Vickers indentation in a simulated body was analyzed, and the nerve system connection was assumed.
The research No. 4 and 6 are still continued.

Report

(4 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • 2000 Annual Research Report
  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] 和田智志, 近森英記, 野間竜男, 鈴木健之, 鶴見敬章: "改良低温直接合成法を用いたナノメーターオーダーチタン酸バリウム単結晶粒子の合成とそのキャラクタリゼーション"日本セラミックス協会論文誌. 108・8. 728 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] S.Wada, H.Chikamori, T.Noma, T.Suzuki: "Effect of Chelating Agents on Crystal Structure of nm-Sized Barium Titanate Crystallites Prepared using a LTDS Method"J.Mater.Sci.Letters. 19-11. 935 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] S.Wada, H.Chikamori, T.Noma, T.Suzuki: "Synthesis of nm-Sized Barium Titanate Crystallites using a new LTDS Method and their Characterization"J.Mater.Sci. 35・19. 4857 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] S.Wada, H.Chikamori, T.Noma, T.Suzuki: "Synthesis of New Titanium Chelated Complexes Stabilized in Aqueous Solution and their Stability on pH and Temperature"J.Mater.Sci.Letters. 19・20. 1855 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Tatsuo Noma et al.: "Interfacial Reaction of Barium Titanate and Hydroxyapatite Duplex Structure"J.Mater.Sci.. (印刷準備中).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 野間竜男他: "水熱法による板状チタン酸バリウム粒子の合成"セラミックス協会論文誌. (印刷準備中).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] S. Wada, H. Chikamori, T. Noma, T. Suzuki and T. Tsurumi: "Synthesis of Nanometer-Sized Barium Titanate Crystallites Using a Modified Low Temperature Direct Synthesis Method and Their Characterization"J. Ceram. Soc. Jpn.. 108[8]. 728 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] S. Wada, H. Chikamori, T. Noma, and T. Suzuki: "Effect of Chelating Agents on Crystal Structure of nm-Sized Barium Titanate Crystallites Prepared using a LTDS Method"J. Mater. Sci. Letters.. 19[11]. 935 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] S. Wada, H. Chikamori, T.Noma. and T. Suzuki: "Synthesis of New Titanium Chelated Complexes Stabilized in Aqueous Solution and their Stability on pH and Temperature"J. Mater. Sci. Letters.. 19[20]. 1855 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] S. Wada, H. Chikamori, T. Noma, and T. Suzuki: "Synthesis of nm-Sized Barium Titanate Crystallites using a new LTDS Method and their Characterization"J. Mater. Sci.. 35[19]. 4857 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Tatsuo Noma et al: "Interfacial Reaction of Barium Titanate and Hydroxyapatite Duplex Structure"J. Mater. Sci. (accepted for publication).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Tatsuo Noma et al: "Synthesis of BaTiO_3 Platelets under Hydrothemial Condition"J. Ceram. Soc. Jpn. (accepted for Publication).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary

URL: 

Published: 2000-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi