Research and Development on Fabrication of Silicon Nitride Ceramics at Lower Temperature using Oxynitride Sintering Aid

2008 Fiscal Year Final Research Report

• Project/Area Number: 19860060
• Research Category: Grant-in-Aid for Young Scientists (Start-up)
• Allocation Type: Single-year Grants
• Research Field: Metal making engineering
• Research Institution: Kyushu University
• Principal Investigator: SAITO Noritaka Kyushu University, 大学院・工学研究院, 講師 (80432855)
• Project Period (FY): 2007 – 2008
• Keywords: オキシナイトライド / 融体 / 窒化ケイ素 / 相転移 / 曲げ強度 / 熱伝導率

Research Abstract

窒化ケイ素セラミックスは高耐熱性および高強度を兼ね備えた非酸化物セラミックスであるため, 高温構造材料として広く用いられている.しかし, 窒化ケイ素は共有結合性が非常に強く固相焼結が困難であるため, 工業的には液相焼結が発達している.本研究ではオキシナイトライドを焼結助剤として用いることにより, より低温・低圧で窒化ケイ素セラミックスを得ることを試みた.また得られた焼結体の力学および熱的特性も調査した

Research Products

• [Journal Article] Low-Temperature Sintering of Silicon Nitride using Oxynitride Sintering Aid (2007)
  • Author(s): Noritaka SAITO and Kunihiko NAKASHIMA
  • Journal Title: Proceedings of the 9th International Symposium on Materials Science and Engineering between Chonbuk National University and Kyushu University, Chonbuk University(Jeonju, Korea) No.3 Pages: 10.24-27
• [Journal Article] Viscosity Measurement of molten RE-Mg-Si-O-N (RE=Y, Gd, Nd and La) Glasses (2007)
  • Author(s): Noritaka SAITO, Daiji NAKATA, Sohei SUKENAGA and Kunihiko NAKASHIMA
  • Journal Title: Key Engineering Materials vol. 287 "SiAlONs and Non-oxides" Proceedings of 2nd International Symposium on SiAlONs and non-Oxides(Mie, Japan) 69-72 Pages: 12.2-5
  • Peer Reviewed
• [Journal Article] Viscosity Measurement of RE-Mg-Si-O-N (RE=Y, Gd, Nd and La) Melts and ^<29>Si MAS-NMR Study of Glasses
  • Author(s): Noritaka SAITO, Daiji NAKATA, Kenji FUJIMOTO, Sohei SUKENAGA, Tomoyasu ICHIKI and Kunihiko NAKASHIMA
  • Journal Title: Journal of European Ceramic Society (in press)
  • Peer Reviewed
• [Journal Article] Solubility of Silicone Nitride into Rare-Earth Containing Magnesium Silicate Molten Glasses
  • Author(s): Noritaka SAITO, Shin-ichi SHIOTA, Sohei SUKENAGA and Kunihiko NAKASHIMA
  • Journal Title: Journal of American Ceramic Society, submitted
  • Peer Reviewed
• [Presentation] Viscosity Measurement of molten RE-Mg-Si-O-N (RE=Y, Gd, Nd and La) Glasses (2007)
  • Author(s): Noritaka SAITO, Daiji NAKATA, Sohei SUKENAGA and Kunihiko NAKASHIMA
  • Organizer: The 2nd International Symposium on SiAlONs and Non-Oxides, Ise-shima Royal Hotel
  • Place of Presentation: Mie, Japan
  • Year and Date: 20071202-05
• [Presentation] Low-Temperature Sintering of Silicon Nitride using Oxynitride Sintering Aid (2007)
  • Author(s): Noritaka SAITO and Kunihiko NAKASHIMA
  • Organizer: The 9th International Symposium on Materials Science and Engineering between Kyushu University and Chonbuk National University
  • Place of Presentation: Chonbuk National University, Chonju, Korea
  • Year and Date: 20071024-27
• [Presentation] Viscosity Measurement of RE-Mg-Si-O-N (RE=Y, Gd, Nd and La) Melts and 29Si MAS-NMR Study of Glasses (2007)
  • Author(s): Noritaka SAITO, Daiji NAKATA, Kenji FUJIMOTO, Sohei SUKENAGA, Tomoyasu ICHIKI and Kunihiko NAKASHIMA
  • Organizer: 10th International Conference and Exhibition of the European Ceramic Society
  • Place of Presentation: Berlin, Germany
  • Year and Date: 20070617-21
• [Presentation] RE-Mg-Si-O-N(RE=Y, Gd, Nd and La)系融体の粘度と構造 (2007)
  • Author(s): 助永壮平, 齊藤敬高, 中島邦彦
  • Organizer: 電気化学会溶融塩委員会第39回溶融塩化学討論会
  • Place of Presentation: ホテル松島大観荘
  • Year and Date: 2007-11-30
• [Presentation] RE-Mg-Si-O-N(RE=Y, Gd, Nd and La)系融体の粘度および急冷ガラスの構造解析 (2007)
  • Author(s): 助永壮平, 齊藤敬高, 中島邦彦
  • Organizer: 日本鉄鋼協会第154回秋季講演大会予告セッション「高度ものづくり支援のための熱物性」
  • Place of Presentation: 岐阜大学
  • Year and Date: 2007-09-19
• [Presentation] オキシナイトライドを用いた窒化ケイ素セラミックスの低温焼結 (2007)
  • Author(s): 清家徹哉, 齊藤敬高, 助永壮平, 中島邦彦
  • Organizer: 資源・素材学会九州支部平成19年度春季例会
  • Place of Presentation: 九州大学
  • Year and Date: 2007-05-25
• [Remarks]
  • URL: http://melts.zaiko.kyushu-u.ac.jp
• [Patent(Industrial Property Rights)] 窒化珪素系焼結体の製造方法および窒化珪素系焼結体 (2005)
  • Inventor(s): 齊藤敬高, 中島邦彦, 高木健, 平昭大成
  • Industrial Property Rights Holder: 齊藤敬高, 中島邦彦, 高木健, 平昭大成
  • Industrial Property Number: 特願2005-355086
  • Filing Date: 2005-12-08