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Development of sintering and joining processes of high performance ceramics for next generation by using high power millimeter-wave radiation

Research Project

Project/Area Number 10555249
Research Category

Grant-in-Aid for Scientific Research (B).

Allocation TypeSingle-year Grants
Section展開研究
Research Field Material processing/treatments
Research InstitutionOsaka University

Principal Investigator

MIYAKE Shoji  Osaka University, Joining and Welding Research Institute, Prof., 接合科学研究所, 教授 (40029286)

Co-Investigator(Kenkyū-buntansha) SANO Saburou  National Industrial Research Institute of Nagoya, セラミックス応用部, 主任研究官
SETSUHARA Yuichi  Osaka University, Joining and Welding Research Institute, Research Assoc., 接合科学研究所, 助手 (80236108)
MAKINO Yukio  Osaka University, Joining and Welding Research Institute, Assoc.Prof., 接合科学研究所, 助教授 (20089890)
SAJI Tazaburou  Gamo Laboratory, Director, 所長(研究職)
Project Period (FY) 1998 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥12,900,000 (Direct Cost: ¥12,900,000)
Fiscal Year 2000: ¥2,600,000 (Direct Cost: ¥2,600,000)
Fiscal Year 1999: ¥2,900,000 (Direct Cost: ¥2,900,000)
Fiscal Year 1998: ¥7,400,000 (Direct Cost: ¥7,400,000)
Keywordsmillimeter-wave / sintering / nitride / silicon nitride / aluminum nitride / sintering aids / selective heating / アルミナ / 誘電特性
Research Abstract

Sintering and joining processes based on millimeter-wave radiation were developed for fabricating high performance ceramics and fundamental properties of ceramics powders were investigated by using millimeter-wave spectroscopy. Following results were obtained.
In the research on clarifying the dielectric characteristics of ceramics powders in the millimeter-wave region, power absorption of silicon carbide powder was first measured by millimeter-wave spectroscopy and it was found that the absorption coefficient increased with increasing the powder size, temperature and the content of free carbon. Secondly, the dielectric constant of alumina-zirconia showed high values with decreasing powder density and increasing zirconia content.
New sintering aids containing Yb_2O_3 were developed for sintering silicon nitrides with 28GHz millimeter-wave radiation and a rapid sintering process was successfully established for fabricating bulk silicon nitrides which were sintered within only one hour lower a temperature which was lower by about 400℃ than those in conventional methods. The rapid millimeter-wave sintering process was also applied to the fabrication of aluminum nitride with high thermal conductivity of about 190 W/m・K was successfully produced at a temperature of 200℃ lower and at a sintering time of one-tenth shorter than those in conventional methods.
Subsequently, as an example of fabricating nanocrystalline bulk materials, consolidation of nano-powder anatase was investigated by millimeter-wave heating, resulting in obtaining porous bulk titania with 200 nm in the average diameter with 300 Hv in the hardness.
Further, focused millimeter-wave beam process enabled to crystallize amorphous SrTiO_3 films at a low temperature below 400℃ and well-crystallized SrTiO_3 films with high dielectric constant similar to polycrystalline bulk SrTiO_3 was synthesized successfully.

Report

(4 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • 1998 Annual Research Report
  • Research Products

    (33 results)

All Other

All Publications (33 results)

  • [Publications] Y.Makino, et., al.: "Ceramics sintering by 28GHz high power millimeter-wave radiation"Intl.Symp.on ECOMAP-98. 549-554 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] S.Sano, t., al.: "Microwave reflection measurement of ceramics in wave guide at high temperature"Intl.Symp.on ECOMAP-98. 458-463 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Y.Makino, et., al.: "Sintering of Al_2O_3-ZrO_2 composites using millimeter-wave radiation"Key Engineering Materials. 161-163. 45-48 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] T.Ueno, Y.Makino, S.Miyake, S.Sano and H.Saito: "High-power 28GHz millimeter-wave sintering of silicon nitrides containing Yb_2O_3 additive"3th Intl.Nano Ceramic Forum and 2^<nd> Intl.Symp.on Intermaterials. 146-152 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] S.Sano, et., al.: "Microwave absorption measurement of silicon carbide in circular wave guide at elevated temperature"7^<th> Intl.Conf.on Microwave and High Frequency Heating. 111-114 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] T.Matsumoto, Y.Makino and S.Miyake: "Synthesis of titanium-chromium nitride composites by millimeter-wave sintering"J.Materials Science. 36. 1-6 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] T.Ueno, et., al.: "Millimeter-wave sintering of Si_3N_4 2nd Intl.Symp.on the Science of Engineering Ceramics"Key Engineering Materials. 161-163. 45-48 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] T.Matsumoto, Y.Makino and S.Miyake: "Enhanced sintering of aluminum nitride with millimeter-wave heating"Powder Metallurgy World Congress 2000. 42 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] T.Ueno, H.Saito, S.Sano, Y.Makino and S.Miyake Sano: "Rapid fabrication of new silicon nitride containing Yb_2O_3-Al_2O_3 additives with 28GHz millimeter-wave heating"Powder Metallurgy World Congress 2000. 174 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Y.Makino, T.Ueno, T.Matsumoto and S.Miyake: "Fabrication of bulk ceramics by high power millimeter-wave radiation"Jpn.J.of Appl.Phys.. 36. 693-698 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 1.Y.Makino, T.Ueno, T.Matsumoto, S.Sano, H.Saito, Y.Setsuhara, S.Miyake and K.Yoshikawa: "Ceramics sintering by 28GHz high power millimeter-wave radiation"Proc.of Intl.Symp.on Environment-Conscious Innovative Materials Processing with Advanced Energy Sources(ECOMAP-98). 549-554 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] S.Sano, Y.Hotta, T.Banno, K.Oda, Y.Setsuhara, Y.Makino and S.Miyake: "Microwave reflection measurement of ceramics in wave guide at high temperature"Proc.of Intl.Symp.on Environment-Conscious Innovative Materials Processing with Advanced Energy Sources(ECOMAP-98). 458-463 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Y.Makino, T.Ohmae, Y.Setsuhara, S.Miyake and S.Sano: "Sintering of Al_2O_3-ZrO_2 composites using millimeter-wave radiation"Key Engineering Materials. Vol.161-163. 41-44 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] T.Ueno, S.Kinoshita, Y.Setsuhara, Y.Makino, S.Miyake, S.Sano and H.Saito: "Millimeter-wave sintering of Si_3N_4"Key Engineering Materials. Vol.161-163. 45-48 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] T.Ueno, Y.Makino, S.Miyake, S.Sano and H.Saito: "High-power 28GHz millimeter-wave sintering of silicon nitrides containing Yb_2O_3 additive"Proc.of 3rd Intl.Nano Ceramic Forum and 2nd Intl.Symp.on Intermaterials(NCF 3 & IMA '99). 146-152 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] S.Sano, Y.Hotta, T.Banno, K.Oda, Y.Setsuhara, Y.Makino and S.Miyake: "Microwave absorption measurement of silicon carbide in circular wave guiide at elevated temperature"Proc.of 7th Intl.Conf.on Microwave and High Frequency Heating. 111-114 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] T.Matsumoto, Y.Makino and S.Miyake: "Synthesis of titanium-chromium nitride composites by millimeter-wave sintering"J.Materials Science. 36. 1-6 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Y.Makino, T.Ueno, T.Matsumoto and S.Miyake: "Fabrication of bulk ceramics a by high power millimeter-wave radiation"J.of Appl.Phys.. 36. 693-698 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] T.Matsumoto, Y.Makino and S.Miyake: "Enhanced sintering of aluminum nitride with millimeter-wave heating"Powder Metallurgy World Congress 2000. 42 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] T.Ueno, H.Saito, S.Sano, Y.Makino and S.Miyake: "Rapid fabrication of new silicon nitride containing Yb_2O_3-Al_2O_3 additives with 28GHz millimeter-wave heating"Powder Metallurgy World Congress 2000. 174 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] S.Miyake: "Ceramics Sintering process by millimeter0wave radiations and pulsed high current supply"Powder and Powder Metallurgy. 45. 1045-1049 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Y.Makino,T.Ohmae,Y.Setsuhara,S,Miyake, et.,al.: "Sintering of Al_2O_3-ZrO_2 Composites Using Millimeter-Wave Radiation"Key Engineering materials. 161-163. 41-44 (1999)

    • Related Report
      2000 Annual Research Report
  • [Publications] T.Ueno,S.Kinoshita,Y.Setuhara,Y.Makino,S.Miyake, et.,al.: "Millimeter-Wave Sintering of Si_3N_4"Key Engineering Materials. 161-163. 45-48 (1999)

    • Related Report
      2000 Annual Research Report
  • [Publications] T.Ueno,Y.Makino,S.Miyake, et.,al.: "High-Power 28GHz Millimeter-Wave Sintering of Silicon Nitrides Containing Yb_2O_3 Additive"3th Intl, Nano Ceramic Forum and 2nd Intl, Symp.on Intermaterials (NCF 3 & IMA'99). 146-152 (1999)

    • Related Report
      2000 Annual Research Report
  • [Publications] S.Sano, et.,al: "Microwave absorption measurement of silicon acrbide in circular wave guide at elevated temperature"7^<th> Intl.Conf.on Microwave and High Frequency Heating. 111-114 (1999)

    • Related Report
      2000 Annual Research Report
  • [Publications] T.Matsumoto,Y.Makino and S.Miyake: "Synthesis of Titanium-Chromium Nitride Composites by Millimeter-Wave Sintering"J.Materials Science. 36. 693-698 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] Y. Makino,T. Ohmae,Y. Setsuhara,S,Miyake,et al.: "Sintering of Al_2O_3 - ZrO_3 Composites Using Millimeter-Wave Radiation"Key Engineering Materials. 161-163. 41-44 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] T. Ueno,S. Kinoshita,Y. Setuhara,Y. Makino,S. Miyake,et al.: "Millimeter-Wave Sintering of Si_3N_4"Key Engineering Materials. 161-163. 45-48 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] T. Ueno,Y. Makino,S. Miyake,et al.: "High-power 28GHz Millimeter-Wave Sintering of Silicom Nirides Containing Yb_2O_3 Additive"3th Intl, Nano Ceramic Forum and 2nd Intl,Symp. on Intermaterials (NCF 3 & IMA'99). 146-152 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] T. Matsumoto,Y. Makino,and S. Miyake: "Synthesis of Titanium-Chromium Nitride Composites by Millimeter-Wave Sintering"J Materials Science. (in press). (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Y.Makino,T.Ohmae et al.: "Sintering of Al_2O_3-ZrO_2 Composites Using Millimeter-Wave Radiation" The Ceramics Society of Japan. Vol.2. 41-44 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] T.Ueno,S.Kinoshita et al.: "Millimeter-Wave Sintering of Si_3N_4" The Ceramics Society of Japan. Vol.2. 45-48

    • Related Report
      1998 Annual Research Report
  • [Publications] 三宅正司: "ミリ波帯電磁波ならびにパルス大電流印加によるセラミックス焼結プロセス" 粉体及び粉末冶金. 第45巻第11号. 1045-1049 (1998)

    • Related Report
      1998 Annual Research Report

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Published: 1998-04-01   Modified: 2016-04-21  

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