In situ visualization with time of wood microcrack occurring during drying

• Project/Area Number: 19580192
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: 林産科学・木質工学
• Research Institution: Kyushu University
• Principal Investigator: MATSUMURA Junji Kyushu University, 大学院・農学研究院, 准教授 (70243946)
• Project Period (FY): 2007 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2010: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2009: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2008: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2007: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: 可視化 / 乾燥割れ / マイクロクラック / 共焦点レーザー顕微鏡 / 木材組織 / 電気抵抗率 / Cryptomeria japonica / 心材 / 収縮異方性 / 共焦点レーザ顕微鏡 / 電機抵抗率 / Melia azedarach / acacia hybrid / 環境制御 / 含水率勾配

Research Abstract

The microcracks occurring during drying of wood were visualized in situ under confocal laser scanning microscopy (CLSM). Precise control of relative humidity and temperature in a specialized environment chamber made it possible to acquire sequential images of the woods of Cryptomeria japonica, Acacia hybrid (A.mangium×A.auriculiformis) and Melia azedarach during drying from the green condition. Our technique made it possible to discuss the relationship between moisture content and microcrack formation during drying and clarified relationship of wood structures to microcrack characteristics. We found the CLSM technique to be an effective method for visualizing microcrack propagation with time.

Research Products

• [Journal Article] Effect of growing site on the fundamental wood properties of natural hybrid clones of Acacia in Vietnam. (2011)
  • Author(s): Nguyen Tu Kim, J.Matsumura, K.Oda
  • Journal Title: J of Wood Science 57(2) Pages: 87-93
  • NAID: 10029035755
• [Journal Article] Effect of growing site on the fundamental wood properties of natural hybrid clones of Acacia in Vietnam (2011)
  • Author(s): T.K.Nguyen, J.Matsumura, K.Oda
  • Journal Title: Journal of Wood Science Volume: 57
  • NAID: 10029035755
  • Peer Reviewed
• [Journal Article] In situ visualization of microcracks by a confocal laser scanning microscopy system. (2010)
  • Author(s): 阪上宏樹, 松村順司, 小田一幸
  • Journal Title: Wood Material Science and Engineering 5 Pages: 110-115
  • NAID: 120005289500
  • Peer Reviewed
• [Journal Article] In-situ visualization of microcracks by CLSM system. (2010)
  • Author(s): 阪上宏樹, 松村順司, 小田一幸
  • Journal Title: 11th International IUFRO Wood. Drying Conference"Recent Advances in the Field of Wood Drying". Pages: 370-375
• [Journal Article] In situ visualization of microcracks by a confocal laser scanning microscopy system (2010)
  • Author(s): H.Sakagami, J.Matsumura, K.Oda
  • Journal Title: Wood Material Science and Engineering Volume: 5 Pages: 110-115
  • NAID: 120005289500
  • Peer Reviewed
• [Journal Article] 乾燥に伴って発生するマイクロクラックのその場観察 (2009)
  • Author(s): 阪上宏樹, 松村順司
  • Journal Title: 木材工業 64(9) Pages: 405-410
  • NAID: 10025220248
  • Peer Reviewed
• [Journal Article] In-situ visualization of hardwood microcracks occurring during drying. (2009)
  • Author(s): 阪上宏樹, 松村順司, 小田一幸
  • Journal Title: J of Wood Science 55(5) Pages: 323-328
  • NAID: 10025628527
  • Peer Reviewed
• [Journal Article] Microcracks occurring during drying visualized by confocal laser scanning microscopy. (2009)
  • Author(s): H.Sakagami, K.Tsuda, J.Matsumura, K.Oda
  • Journal Title: IAWA J 30(2) Pages: 179-187
  • Peer Reviewed
• [Journal Article] 乾燥に伴って発生するマイクロクラックのその場観察 (2009)
  • Author(s): 阪上宏樹, 松村順司
  • Journal Title: 木材工業 64 Pages: 405-410
  • NAID: 10025220248
  • Peer Reviewed
• [Journal Article] In-situ visualization of hardwood microcracks occurring during drying (2009)
  • Author(s): H. Sakagami, J. Matsumura, K. Oda
  • Journal Title: Journal of Wood Science 55 Pages: 323-328
  • NAID: 10025628527
  • Peer Reviewed
• [Journal Article] Microcracks occurring during drying visualized by confocal laser microscopy (2009)
  • Author(s): H. Sakagami, J. Matsumura, K. Oda
  • Journal Title: IAWA Journal 30 Pages: 179-187
  • Peer Reviewed
• [Journal Article] In-situ visualization of hardwood microcracks occurring during drying (2009)
  • Author(s): H.Sakagami, J.Matsumura, K.Oda
  • Journal Title: Journal of Wood Science 55 Pages: 323-328
  • NAID: 10025628527
  • Peer Reviewed
• [Journal Article] Microcracks occurring during drying visualized by confocal laser scanning microscopy (2009)
  • Author(s): H.Sakagami, J.Matsumura, K.Oda
  • Journal Title: IAWA Journal 30 Pages: 179-187
  • Peer Reviewed
• [Journal Article] Microcracks occurring during drying visualized by confocal laser scanning microscopy (2009)
  • Author(s): H. Sakagami, J. Matsumura, K. Oda
  • Journal Title: IAWA Journal 30(in press)
  • Peer Reviewed
• [Journal Article] 環境を制御したCLSM下における収縮挙動のその場観察 (2008)
  • Author(s): 阪上宏樹, 松村順司, 小田一幸
  • Journal Title: 木材工業 63(6) Pages: 262-266
  • NAID: 10024336258
  • Peer Reviewed
• [Journal Article] 環境を制御したCLSM下における収縮挙動のその場観察 (2008)
  • Author(s): 阪上宏樹, 松村順司
  • Journal Title: 木材工業 63 Pages: 262-266
  • NAID: 10024336258
  • Peer Reviewed
• [Journal Article] 環境を制御したCLSM下における収縮挙動のその場観察 (2008)
  • Author(s): 阪上宏樹, 松村順司, 小田一幸
  • Journal Title: 木材工業 63 Pages: 262-266
  • NAID: 10024336258
  • Peer Reviewed
• [Presentation] Visualization of Wood Physical Behavior by New Microscopic Techniques (2011)
  • Author(s): Junji Matsumura
  • Organizer: A lecture in Gadjah Mada University
  • Place of Presentation: Yogjakarta, Indonesia
  • Year and Date: 2011-03-14
• [Presentation] スギ黒心材におけるマイクロクラックの発生挙動 (2011)
  • Author(s): 波多江芙美子, 阪上宏樹, 松村順司, 小田一幸
  • Organizer: 第61回日本木材学会大会
  • Place of Presentation: 京都
• [Presentation] Visualization of Wood physical behaviors. (2010)
  • Author(s): 松村順司
  • Organizer: Chonbuk National University
  • Place of Presentation: Korea
  • Year and Date: 2010-05-19
• [Presentation] Visualization of Wood Physical Behavior (2010)
  • Author(s): Junji Matsumura
  • Organizer: A lecture in Chonbuk National University
  • Place of Presentation: Chonbuk, South Korea
  • Year and Date: 2010-05-19
• [Presentation] スギ黒心材におけるマイクロクラックの発生挙動 (2010)
  • Author(s): 波多江芙美子, 阪上宏樹, 松村順司, 小田一幸
  • Organizer: 日本木材学会大会(P15)
  • Place of Presentation: 京都
• [Presentation] 乾燥に伴う割れの経時変化と早材細胞の変形 (2010)
  • Author(s): 山本宏行, 阪上宏樹, 松村順司, 小田一幸
  • Organizer: 日本木材学会九州支部大会(P9-10)
  • Place of Presentation: 福岡
• [Presentation] スギ心材に発生するマイクロクラックの発生挙動 (2010)
  • Author(s): 阪上宏樹, 松村順司, 小田一幸
  • Organizer: 日本木材学会大会(P15)
  • Place of Presentation: 宮崎
• [Presentation] 乾燥過程におけるスギ辺材のマイクロクラック発生挙動と抵抗率との関係 (2010)
  • Author(s): 山本宏行, 阪上宏樹, 松村順司, 小田一幸
  • Organizer: 日本木材学会大会(P15)
  • Place of Presentation: 宮崎
• [Presentation] In-situ visualization of microcracks by CLSM. (2010)
  • Author(s): 阪上宏樹, 松村順司, 小田一幸
  • Organizer: 11th International IUFRO Wood drying Conference.
  • Place of Presentation: Skelleftea, Sweden.
• [Presentation] 乾燥に伴う割れの経時変化と早材細胞の変形 (2010)
  • Author(s): 山本宏行, 阪上宏樹, 松村順司, 小田一幸
  • Organizer: 第17回日本木材学会九州支部大会
  • Place of Presentation: 福岡
• [Presentation] In-situ visualization of microcracks by CLSM system (2010)
  • Author(s): H. Sakagami, J. Matsumura, K. Oda
  • Organizer: 11th International IUFRO Wood drying Conference
  • Place of Presentation: Skelleftea, Sweden
• [Presentation] スギ心材に発生するマイクロクラックの発生挙動 (2010)
  • Author(s): 阪上宏樹, 松村順司, 小田一幸
  • Organizer: 第60回日本木材学会大会
  • Place of Presentation: 宮崎
• [Presentation] 乾燥過程におけるスギ辺材のマイクロクラック発生挙動と抵抗率との関係 (2010)
  • Author(s): 山本宏行, 阪上宏樹, 松村順司, 小田一幸
  • Organizer: 第60回日本木材学会大会
  • Place of Presentation: 宮崎
• [Presentation] In-situ visualization of microcracks by CLSM system (2010)
  • Author(s): 阪上宏樹, 松村順司, 小田一幸
  • Organizer: 11th International ILFRO Wood drying Conference
  • Place of Presentation: シュレフテオ, スウェーデン
• [Presentation] In-situ visualization of microcracks occurring during drying. (2009)
  • Author(s): 阪上宏樹, 松村順司, 小田一幸
  • Organizer: 7th Pacific Regional Wood Anatomy Conference(P65).
  • Place of Presentation: Kuala Lumpur, Malaysia.
• [Presentation] In-situ visualization of microcracks occurring during drying (2009)
  • Author(s): H. Sakagami, J. Matsumura, K. Oda
  • Organizer: 7th Pacific Regional Wood Anatomy Conference
  • Place of Presentation: Kuala Lumpur, Malaysia
• [Presentation] In-situ visualization of microcracks occurring during drying (2009)
  • Author(s): 阪上宏樹, 松村順司, 小田一幸
  • Organizer: 7th Pacific Regional Wood Anatomy Conference
  • Place of Presentation: クアラルンプール, マレーシア
• [Presentation] Visualization of microcracks occurring during drying. (2008)
  • Author(s): 阪上宏樹, 松村順司, 小田一幸
  • Organizer: 9th Pacific Rim Bio-Based Composites Symposium (P.392)
  • Place of Presentation: Rotorua, New Zealand.
• [Presentation] 乾燥に伴って生じる広葉樹マイクロクラックの形態観察 (2008)
  • Author(s): 阪上宏樹, 松村順司, 小田一幸
  • Organizer: 日本木材学会九州支部大会(P17-18)
  • Place of Presentation: 日田
• [Presentation] Visualization of microcracks occurring during drying (2008)
  • Author(s): H. Sakagami, J. Matsumura, K. Oda
  • Organizer: 9th Pacific Rim Bio-Based Composites Symposium
  • Place of Presentation: Rotorua, New Zealand
• [Presentation] 乾燥に伴って生じる広葉樹マイクロクラックの形態観察 (2008)
  • Author(s): 阪上宏樹, 松村順司, 小田一幸
  • Organizer: 第15回日本木材学会九州支部大会
  • Place of Presentation: 日田
• [Presentation] Visualization of microcracks occurring during drying (2008)
  • Author(s): H. Sakagami, J. Matsumura, K. Oda
  • Organizer: 9th Pacific Rim Bio-Based Composites Symposium
  • Place of Presentation: Rotorua, NewZealand
• [Presentation] 乾燥に伴って生じる広葉樹マイクロクラックの形態観察 (2008)
  • Author(s): 阪上宏樹, 松村順司, 小田一幸
  • Organizer: 日本木材学会九州支部
  • Place of Presentation: 日田, 大分
• [Presentation] 可視化技術を利用した広葉樹マイクロクラックの経時観察II-アカシアハイブリッドを対象に (2007)
  • Author(s): 阪上 宏樹, 松村 順司, 小田 一幸
  • Organizer: 日本木材加工技術協会
  • Place of Presentation: 旭川市
  • Year and Date: 2007-09-27
• [Presentation] 可視化技術を利用した広葉樹マイクロクラックの経時観察I-センダンを対象に (2007)
  • Author(s): 阪上 宏樹, 松村 順司, 小田 一幸
  • Organizer: 日本木材学会
  • Place of Presentation: 広島市
  • Year and Date: 2007-08-09
• [Presentation] 可視化技術を利用した広葉樹マイクロクラックの経時観察II-アカシアハイブリッドを対象に- (2007)
  • Author(s): 阪上宏樹, 松村順司, 小田一幸
  • Organizer: 日本木材加工技術協会大会(P13-14)
  • Place of Presentation: 旭川
• [Presentation] 可視化技術を利用した広葉樹マイクロクラックの経時観察I-センダンを対象に- (2007)
  • Author(s): 阪上宏樹, 松村順司, 小田一幸
  • Organizer: 日本木材学会大会(P3)
  • Place of Presentation: 広島
• [Presentation] 可視化技術を利用した広葉樹マイクロクラックの経時観察II-アカシアハイブリッドを対象に- (2007)
  • Author(s): 阪上宏樹, 松村順司, 小田一幸
  • Organizer: 第25回日本木材加工技術協会年次大会
  • Place of Presentation: 旭川
• [Presentation] 可視化技術を利用した広葉樹マイクロクラックの経時観察I-センダンを対象に- (2007)
  • Author(s): 阪上宏樹, 松村順司, 小田一幸
  • Organizer: 第57回日本木材学会大会
  • Place of Presentation: 広島