In-situ observation of crack propagation behavior of ceramics by scanning probe microscope

• Project/Area Number: 21686062
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Single-year Grants
• Research Field: Inorganic materials/Physical properties
• Research Institution: Yokohama National University
• Principal Investigator: TATAMI Junichi 横浜国立大学, 環境情報研究院, 准教授 (30303085)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥25,870,000 (Direct Cost: ¥19,900,000、Indirect Cost: ¥5,970,000); Fiscal Year 2011: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000); Fiscal Year 2010: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000); Fiscal Year 2009: ¥15,080,000 (Direct Cost: ¥11,600,000、Indirect Cost: ¥3,480,000)
• Keywords: セラミックス / 破壊 / 窒化ケイ素 / 走査型プローブ顕微鏡 / その場観察 / 磁歪材料

Research Abstract

Small testing machine installed in scanning probe microscope was developed. A one-sided Chevron notched specimen was used for for stable fracture. A crack in the Si_3N_4 ceramics did not always propagate continuously from the tip of the crack. It was also observed that some of the micro cracks discontinuously formed and they connected. In Terfenol-D, which is a magnetostrictive material, magnetic domain structure near the crack tip was changed with crack propagation.

Research Products

• [Presentation] In-Situ Observation of Crack Propagation Behavior of Silicon Nitride Ceramics by Scanning Probe Microscopy (2012)
  • Author(s): Junichi Tatami, Masahiro Onishi, Toru Wakihara, Takeshi Meguro, Katsutoshi Komeya
  • Organizer: ICACC2012
  • Place of Presentation: デイトナビーチ(米国)
• [Presentation] In-situ observation of crack propagation behavior of Si3N4 ceramics by scanning probe microscope (2011)
  • Author(s): Junichi Tatami, Masahiro Onishi, Toru Wakihara, Takeshi Meguro and Katsutoshi Komeya
  • Organizer: The 35th International Conference and Expositionon Advanced Ceramics and Composites
  • Place of Presentation: Daytona Beach, U. S. A
• [Presentation] In-situ Observation of Crack Propagation Behavior of Si_3N_4 Ceramics by Scanning Probe Microscope (2011)
  • Author(s): Junichi Tatami, Masahiro Onishi, Toru Wakihara, Takeshi Meguro, Katsutoshi Komeya
  • Organizer: Fractography of Advanced Ceramics
  • Place of Presentation: ジャクソンビル(米国)
• [Presentation] In-situ observation of crack propagation behavior of Si_3N_4 ceramics by scanning probe microscope (2011)
  • Author(s): Junichi Tatami, Masahiro Onishi, Toru Wakihara, Takeshi Meguro, Katsutoshi Komeya
  • Organizer: Pacrim9
  • Place of Presentation: ケアンズ(オーストラリア)
• [Presentation] 走査型プローブ顕微鏡によるSi_3N_4セラミックスのき裂進展素過程のその場観察 (2011)
  • Author(s): 大西将弘・多々見純一・脇原徹・米屋勝利・目黒竹司
  • Organizer: 日本セラミックス協会秋季シンポジウム
  • Place of Presentation: 札幌
• [Presentation] In-Situ Observation of Crack Propagation Behavior of Silicon Nitride Ceramics by Scanning Probe Microscopy (2011)
  • Author(s): Junichi Tatami, Masahiro Onishi, Toru Wakihara, Takeshi Meguro, Katsutoshi Komeya
  • Organizer: MS&T2011
  • Place of Presentation: コロンバス(米国)
• [Presentation] In-situ observation of crack propagation behavior of Si_3N_4 ceramics by scanning probe microscope (2011)
  • Author(s): Junichi Tatami, Masahiro Onishi, Toru Wakihara, Takeshi Meguro, Katsutoshi Komeya
  • Organizer: MS&T
  • Place of Presentation: 横浜
• [Presentation] In-situ observation of crack propagation behavior of Si_3N_4 ceramics by scanning probe microscope (2011)
  • Author(s): Junichi Tatami, Masahiro Onishi, Toru Wakihara, Takeshi Meguro, Katsutoshi Komeya
  • Organizer: The 35th International Conference and Exposition on Advanced Ceramics and Composites
  • Place of Presentation: Daytona Beach, U.S.A.
• [Presentation] 走査型プローブ顕微鏡によるSi_3N_4セラミックスのき裂進展過程のその場観察 (2010)
  • Author(s): 大西将弘、多々見純一、脇原徹、米屋勝利、目黒竹司
  • Organizer: 第5回セラミックフェスタin神奈川
  • Place of Presentation: 神奈川工科大学、厚木
  • Year and Date: 2010-12-11
• [Presentation] 走査型プローブ顕微鏡によるSi_3N_4セラミックスのき裂進展過程のその場観察 (2010)
  • Author(s): 大西将弘・多々見純一・脇原徹・米屋勝利・目黒竹司
  • Organizer: 日本セラミックス協会2009年年会
  • Place of Presentation: 東京農工大学(東京都)
  • Year and Date: 2010-03-23
• [Presentation] Nanofractography of Ceramics by Scanning Probe Microscopy (2010)
  • Author(s): Junichi Tatami, Toru Wakihara, Katsutoshi Komeya
  • Organizer: 3rd International Congress on Ceramics
  • Place of Presentation: 大阪
• [Presentation] In-situ observation of crack propagation of Si_3N_4 ceramics by scanning probe microscope (2010)
  • Author(s): Masahiro Onishi, Junichi Tatami, Toru Wakihara, Takeshi Meguro, Katsutoshi Komeya
  • Organizer: The 3rd International Symposium on SiAlONs and Non-Oxides
  • Place of Presentation: Cappadocia, Turkey
• [Presentation] In-situ observation of crack propagation of Si_3N_4 ceramics by scanning probe microscope (2010)
  • Author(s): Masahiro Onishi, Junichi Tatami, Toru Wakihara, Takeshi Meguro, Katsutoshi Komeya
  • Organizer: 第20回日本MRS学術シンポジウム
  • Place of Presentation: 横浜
• [Presentation] Nanofractography of Ceramics by Scanning Probe Microscopy (2010)
  • Author(s): J.Tatami, T.Wakihaza, K.Komeya
  • Organizer: 3rd Imernational Congress on Ceramics
  • Place of Presentation: 大阪(招待講演)