Synthesis of ceramic thick films using combination of flame method and high-velocity field

• Project/Area Number: 26630361
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Material processing/Microstructural control engineering
• Research Institution: Nagaoka University of Technology
• Principal Investigator: Saitoh Hidetoshi 長岡技術科学大学, 工学(系)研究科(研究院), 教授 (80250984)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2014: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
• Keywords: 溶射 / EDTA / フレーム / イットリア / エルビア / セラミックス膜 / 酸化物 / 水素 / Y2O3 / キレート / セラミックス / 膜 / 気孔率

Outline of Final Research Achievements

Yttrium oxide (Y2O3) films with high thermal-shock resistance were synthesized from a metalethylenediaminetetraacetic (metal_EDTA) complex by employing a H2-O2 combustion flame. A rotation apparatus and various cooling agents (compressed air, liquid nitrogen, and atomized purified-water) were used during the synthesis to control the thermal history during film deposition. An EDTA"Y"H complex was prepared and used as the staring material for the synthesis of Y2O3 films with a flame-spraying apparatus. Although thermally extreme environments were employed during the synthesis, all of the obtained Y2O3 films showed only a few cracks and minor peeling in their microstructures. For instance, the Y2O3 film synthesized using the rotation apparatus with water atomization units exhibited a porosity of 22.8%. The maximum film temperature immediately after deposition was 453°C owing to the high heat of evaporation of water.

Research Products

• [Journal Article] Synthesis of (Y,E)2O3 films from multiple-nuclei EDTA(Y,Er)H complexes by flame spray method (2016)
  • Author(s): K. Komatsu, T. Sekiya, A. Toyama, T, Shirai, A. Nakamura, S. Ohshio, I. Toda, H. Muramatsu, H. Saitoh
  • Journal Title: Mater. Trans. Volume: 57 Pages: 70-74
  • Peer Reviewed
• [Presentation] Heat-shock properties on Y2O3 films synthesized with metal ethylenediamine tetraacetic acid complex (2016)
  • Author(s): K. Komatsu*, D. Enkin, K. Abe, T. Kosuta, Y. Ikeda, A. Nakamura, S. Ohshio, H. Saitoh
  • Organizer: International thermal spray conference
  • Place of Presentation: Shanghai
  • Year and Date: 2016-05-10
  • Int'l Joint Research
• [Presentation] Flame-sprayed Y2O3 films having thermal-shock resistance with metal_EDTA complexes (2016)
  • Author(s): K. Komatsu, A. Toyama, T. Sekiya, T. Shirai, A. Nakamura, I. Toda, S. Ohshio, H. Muramatsu, H. Saitoh*
  • Organizer: International thermal spray conference
  • Place of Presentation: Shanghai
  • Year and Date: 2016-05-10
  • Int'l Joint Research
• [Presentation] Densification of metal oxide films synthesized from a metal complex by flame apparatus (2016)
  • Author(s): K. Komatsu, T. Shirai, A. Toyama, T. Iseki, D. Enkin, A. Nakamura*, Y. Li, H. Muramatsu, H. Saitoh
  • Organizer: International thermal spray conference
  • Place of Presentation: Shanghai
  • Year and Date: 2016-05-10
  • Int'l Joint Research
• [Presentation] 金属-EDTA 原料粒径を制御し合成した酸化物膜の微細構造 (2015)
  • Author(s): 白井友之・淡エンキン・小松啓志・中村淳・ 大塩茂夫・齋藤秀俊
  • Organizer: 日本セラミックス協会
  • Place of Presentation: 岡山大学
  • Year and Date: 2015-03-18 – 2015-03-20
• [Presentation] 金属–EDTAの原料粒径を制御して合成した酸化物膜 (2015)
  • Author(s): 白井 友之、淡 エンキン、小松 啓志、中村 淳, 、大塩 茂夫、齋藤 秀俊
  • Organizer: 応用物理学会
  • Place of Presentation: 東海大学
  • Year and Date: 2015-03-11 – 2015-03-14
• [Presentation] 金属-EDTA錯体由来の急速加熱冷却に耐えうるY2O3膜の合成 (2015)
  • Author(s): 外山 歩、白井 友之、佐藤 彰紀、淡 エンキン、小松 啓志、中村 淳、戸田 育民、大塩 茂夫、村松 寛之、齋藤 秀俊
  • Organizer: 応用物理学会
  • Place of Presentation: 東海大学
  • Year and Date: 2015-03-11 – 2015-03-14
• [Presentation] 高圧相SrO:Eu青色蛍光体の焼成プロセス (2015)
  • Author(s): 小松 啓志、中村 淳、大塩 茂夫、齋藤 秀俊
  • Organizer: 応用物理学会
  • Place of Presentation: 東海大学
  • Year and Date: 2015-03-11 – 2015-03-14