Lattice Contraction and quasi-two phase state of nanocrystalline metal

• Project/Area Number: 25390027
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Nanomaterials engineering
• Research Institution: University of Tsukuba
• Principal Investigator: Tanimoto Hisanori 筑波大学, 数理物質系, 准教授 (70222122)
• Research Collaborator: XI Terigele ; SATO Takatoshi
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
• Keywords: ナノ構造 / 結晶粒界 / 空孔型欠陥 / 結晶格子収縮 / 相転移 / 擬弾性 / ナノ材料 / 金属物性 / 格子欠陥 / 表面・界面物性

Outline of Final Research Achievements

The origin of unique properties of nanocrystalline metals was investigated from various physical properties of nanocrystalline gold. The results indicated that abundant vacancy-type defects contained in the crystallites play an important role on stabilization of grain boundaries and a quasi-two phase state of crystallite and grain boundaries is brought out. A partial flow of the vacancy-type defects from the crystallites to the grain boundaries starts above 170 K and it triggers the glass-like transition of grain boundaries leading to the unique properties of nanocrystalline gold such as the large anelasticity above 200 K.

Research Products

• [Journal Article] Growth Inhibition of Hexagonal Silver Nanoplates by Localized Surface Plasmon Resonance (2015)
  • Author(s): Hisanori Tanimoto, Kazuhiro Hashiguchi, and Satoru Ohmura
  • Journal Title: J. Phys. Chem. C Volume: 119 Issue: 33 Pages: 19318-19325
  • DOI: 10.1021/acs.jpcc.5b04664
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] 単色可視光照射によるサイズ選択的六角板銀ナノ粒子の形成‐光励起場を利用した金属ナノ粒子の形態制御に向けて (2014)
  • Author(s): 谷本久典
  • Journal Title: まてりあ（日本金属学会会報） Volume: 53 Pages: 537-540
  • Peer Reviewed
• [Journal Article] Light-induced hydrogen evolution from hydrogenated amorphous silicon: hydrogen diffusion by formation of bond centered hydrogen (2014)
  • Author(s): H. Tanimoto, H. Arai, H. Mizubayashi, M. Yamanaka, and I. Sakata
  • Journal Title: J. Appl. Phys. Volume: 115 Issue: 7
  • DOI: 10.1063/1.4865166
  • Peer Reviewed
• [Journal Article] Solvent design methodology to recycle chamber parts and recover platinum by highly-selective wet treatment for Ni-Pt sputtering system (2013)
  • Author(s): Takuya Futase, Yoshichika Sabae, and Hisanori Tanimoto
  • Journal Title: Jpn. J. Appl. Phys. Volume: 52 Issue: 11R Pages: 116505-116505
  • DOI: 10.7567/jjap.52.116505
  • NAID: 40019883594
  • Peer Reviewed
• [Journal Article] Fluoride Contamination Induced NiSi2 Film Formation in a Gate NiSi Line (2013)
  • Author(s): Futase, T, and Tanimoto, H
  • Journal Title: IEEE Trans. Semicond. Manuf. Volume: 26 Issue: 3 Pages: 355-360
  • DOI: 10.1109/tsm.2013.2268872
  • Peer Reviewed
• [Presentation] 金ナノ結晶材の格子収縮と低温電気抵抗・熱物性 (2016)
  • Author(s): 佐藤 隆洋、席 特日格楽、谷本 久典、水林 博
  • Organizer: 日本金属学会春季講演大会
  • Place of Presentation: 東京理科大学葛飾キャンパス（東京都葛飾区）
  • Year and Date: 2016-03-24
• [Presentation] Lattice Contraction of Nanocrystalline Au and Rapid Increase in Internal Friction above 200K (2016)
  • Author(s): Xi Terigele、Hisanori TANIMOTO、Takahiro SATO、Hiroshi MIZUBAYASHI
  • Organizer: 日本金属学会春季講演大会
  • Place of Presentation: 東京理科大学葛飾キャンパス（東京都葛飾区）
  • Year and Date: 2016-03-24
• [Presentation] 銀薄膜に特有な低温内部摩擦の発現機構 (2015)
  • Author(s): 猪田 健登、谷本 久典
  • Organizer: 日本金属学会秋季講演大会
  • Place of Presentation: 九州大学伊都キャンパス（福岡県福岡市）
  • Year and Date: 2015-09-18
• [Presentation] 金ナノ結晶材の格子定数の低温温度変化と結晶子・粒界状態 (2015)
  • Author(s): 佐藤 隆洋、席 特日格楽、谷本 久典、水林 博、熊井 玲児、佐賀山 基
  • Organizer: 日本金属学会秋季講演大会
  • Place of Presentation: 九州大学伊都キャンパス（福岡県福岡市）
  • Year and Date: 2015-09-17
• [Presentation] Surface State of Ligaments in Nanoporous Gold Prepared by Selective Etching (2015)
  • Author(s): H. Tanimoto, T. Hattori, S. Arai and K. Mori
  • Organizer: 9th Int. Conf. on Porous Metals and Metallic Foams (MetFoam 2015）
  • Place of Presentation: Balcerona, Spain
  • Year and Date: 2015-08-31
  • Int'l Joint Research
• [Presentation] Reversible Change in Electrical Resistivity of Nanoporous Gold by Gas Absorption and Desorption (2015)
  • Author(s): T. Hattori, S. Arai and H. Tanimoto
  • Organizer: 9th Int. Conf. on Porous Metals and Metallic Foams (MetFoam 2015）
  • Place of Presentation: Balcerona, Spain
  • Year and Date: 2015-08-31
  • Int'l Joint Research
• [Presentation] 金ナノ結晶材料の特異物性と結晶子・粒界状態 (2015)
  • Author(s): 佐藤隆洋、鈴木孝侑、谷本久典、水林博
  • Organizer: 2015年日本金属学会春期講演会
  • Place of Presentation: 東京大学駒場キャンパス
  • Year and Date: 2015-03-19
• [Presentation] 金ナノ結晶材料の特異物性と粒界状態－格子定数と内部摩擦－ (2014)
  • Author(s): 鈴木孝侑、佐藤隆洋、谷本久典、水林博
  • Organizer: 日本金属学会秋期講演会
  • Place of Presentation: 名古屋大学
  • Year and Date: 2014-09-26
• [Presentation] 金ナノ結晶材料の特異物性と粒界状態-熱分析と電気抵抗測定- (2014)
  • Author(s): 佐藤隆洋、鈴木孝侑、谷本久典、水林博
  • Organizer: 日本金属学会秋期講演会
  • Place of Presentation: 名古屋大学
  • Year and Date: 2014-09-26
• [Presentation] 金ナノ結晶材の特異力学特性と粒界状態
  • Author(s): 木村高敏、鈴木孝侑、谷本久典、水林博
  • Organizer: 日本金属学会秋期講演会
  • Place of Presentation: 金沢大学
• [Presentation] 光による金属ナノ粒子の形態制御
  • Author(s): 谷本久典
  • Organizer: 日本金属学会春期講演会
  • Place of Presentation: 東京工業大学
  • Invited
• [Presentation] 光照射クエン酸銀水溶液の状態変化に対するX線小角散乱測定
  • Author(s): 橋口和弘、鈴木孝侑、谷本久典、水林博、高木秀彰、清水伸隆
  • Organizer: 日本金属学会春期講演会
  • Place of Presentation: 東京工業大学
• [Remarks] 谷本研研究内容
  • URL: http://www.ims.tsukuba.ac.jp/~mizutani_lab/page/naiyou/naiyou.htm
• [Remarks] ナノ金属材料研究室（谷本研究室）
  • URL: http://www.ims.tsukuba.ac.jp/~mizutani_lab/index.htm
• [Remarks] 谷本研究室研究内容
  • URL: http://www.ims.tsukuba.ac.jp/~mizutani_lab/index.htm