Kyushu University / Hata Laboratory

Advanced materials / Practical nanostructural analysis

Practical Nanostructural Analysis Supporting Advanced Materials Research and Development

The properties and performance of materials are strongly influenced not only by their composition and crystal structure, but also by nanoscale features such as defects, interfaces, precipitates, phase separation, and elemental segregation. Our laboratory conducts practical nanostructural characterization of a wide variety of advanced materials, including steels, superconducting materials, shape memory alloys, glasses, thermoelectric materials, ceramics, and thin films, by combining TEM/STEM, EDS/EELS, electron diffraction, and three-dimensional analysis techniques.

3D Characterization STEM-ACOM SRO / Nanoclusters Advanced Materials

Key Points

Designing optimal analyses for each material

We design analyses by understanding the nature of each material and combining STEM imaging, spectroscopy, diffraction, and 3D characterization appropriately.

Solving problems through collaboration

Through collaborations with universities, companies, and research institutes, we contribute electron microscopy analyses to practical problems in materials development.

Clarifying structure–property relationships

We aim to understand strength, superconducting properties, thermal properties, phase transformations, and crystallization behavior from the viewpoint of nanostructure.

Related Publications and Information

Selected publications and related information on this topic are listed below.

A. Kalbekov et al., "Transformation behaviors and Microstructure Modifications in Hydrogen-Charged Ti–Ni Shape Memory Alloy", Shape Memory and Superelasticity (2024).（Ti-Ni形状記憶合金の相変態に及ぼす水素の影響。西田稔名誉Professor、赤嶺Assistant ProfessorらとのCollaborative research）
Z. Guo et al., "Planar defects and strain distributions in polycrystalline BaFe2As2 superconductors synthesized by mechanochemical methods", Acta Materialia, 266, 119648 (2024).（東京農工大学　山本明保先生、東北大学大学（現九州大学）嶋田雄介先生らとのCollaborative research。Ba122超伝導体に導入された多量の面状欠陥）
T. Kajihara et al., "Effect of ZrSnO4 solid solution on the crystallization behavior of Li2O-Al2O3-SiO2 glasses", International Journal of Applied Glass Science, 15(1), 31–43 (2024).（AGCとのCollaborative research。LAS系ガラスの結晶化過程）
H. Akamine, A. Kaobekov, T. Higashizono, M. Matsuda, S. Hata, M. Nishida, "Hydrogen-induced phase with martensitic-like characteristics in Ti–Ni shape memory alloys", Journal of Alloys and Compounds, 965, 171470 (2023).（西田稔名誉Professor、赤嶺Assistant Professor、熊本大学松田光弘准ProfessorらとのCollaborative research。水素チャージしたTi-Ni合金に形成された新たな結晶相の解析）
T. Kajihara, K. Akatsuka, H. Hijiya, S. Yoshida, A. Mitsuta, H. Gao, S. Fujino, S. Hata, "Effect of small additions of Li2O on phase separation and crystallization of barium-silicate glasses", Journal of the Americal Ceramic Society, 106(7), 4181–4191 (2023).（AGCとのCollaborative research。Li2Oの微量添加で顕著な結晶化を示すバリウムシリケート系ガラスの微細構造解析）
K. Iida, J. Hanisch, S. Hata, A. Yamamoto, "recent progress on epitaxial growth of Fe-based superconducting thin films", Superconductor Science and Technology, 36, 063001 (2023).（JST-CRESTにおける鉄系超伝導体薄膜に関するreview article）
S. Hata, D. Fukuda, H. Saito, Y. Shimada, Z. Guo, A. Matsumoto, H. Nakashima, H. Kitaguchi, "Microstructure and Its Heat Treatment Process of Thin Films Fabricated by Alternate Sputtering of (Bi,Pb)2Sr2CaCu2Ox and Pb–Ca–Cu–O Targets on SrTiO3 Substrates", IEEE Transactions on Applied Superconductivity, 33(5), 7500705 (2023).（NIMSとのCollaborative research。Bi2223薄膜成長の微視的プロセスの観察）
Harini Sosiati, Ardhia Revarti, Ardi Surya, Satoshi Hata, Preparation and characterization of non-woven nanofibrous membranes of chitosan and poly(ethylene oxide) in a high ethanol concentration, Journal of Southwest Jiaotong University, 57(1), 168-180 (2022).（Indiaネシア　ムハマディア大学ジョグジャカルタ校とのCollaborative research）
Kazumasa Iida, Dongyi Qin, Chiara Tarantini, Takafumi Hatano, Chao Wang, Zimeng Guo, Hongye Gao, Hikaru Saito, Satoshi Hata, Michio Naito and Akiyasu Yamamoto, Approaching the ultimate superconducting properties of (Ba,K)Fe2As2 by naturally formed low-angle grain boundary networks, NPG Asia Materials, 13, Article number: 68 (2021).（小角粒界のナノスケール高密度導入により世界最高水準の臨界電流特性を実現した(Ba,K)Fe2As2超伝導薄膜。小角粒界ナノ組織の解析で貢献。学外とのCollaborative research）
Rauf Khan, Michitaka Ohtaki, Satoshi Hata, Koji Miyazaki and Reiji Hattori, Thermal Conductivity of Nano-Crystallized Indium-Gallium-Zinc Oxide Thin Films Determined by Differential Three-Omega Method, Nanomaterials, 11(6) 1547 (2021).（IGZO薄膜の熱電特性とナノ結晶化に関する研究。Doctoral Student　Rauf Khan　氏の成果。学内Collaborative research）
Makoto Kosaka, Kohsaku Ushioda, Toshihiko Teshima, Minoru Nishida and Satoshi Hata, Three-dimensional Quantitative Evaluation of the Lamellar Curvature in Pearlitic Steel Based on an Orientation Analysis of Cementite, ISIJ International, 4(9), 9938-9944 (2021).（パーライトにおけるセメンタイトの曲線形状の三次元解析。社会人Doctoral Student　小坂　誠　氏の成果。企業とのCollaborative research）
Zimeng Guo, Hongye Gao, Keisuke Kondo, Takafumi Hatano, Kazumasa Iida, Jens Hänisch, Hiroshi Ikuta and Satoshi Hata, Nanoscale Texture and Microstructure in a NdFeAs(O,F)/IBAD-MgO Superconducting Thin Film with Superior Critical Current Properties, ACS Applied Electronic Materials, 3(7), 3158-3166 (2021).（配向MgO基板上に成長させたNdFeAs(O,F)超伝導薄膜の小角粒界柱状晶組織の解析。Doctoral Student　郭　子萌　氏の成果。Nagoya University、GermanyとのCollaborative research）
R. Nakamura, H. Kasai, T. Fujita, H. Akamine, S. Hata and E. Nishibori, Critical Length for Lattice Expansion of SnO2 Nanorods and Nanosheets: Implications for Lithium-Ion Batteries, ACS Applied Nano Materials, 4(9), 9938-9944 (2021).（SnO2ナノ材料の微細構造観察での連携。学内および筑波大学とのCollaborative research）
Kazumasa Iida, Jens Hänisch, Keisuke Kondo, Mingyu Chen, Takafumi Hatano, Chao Wang, Hikaru Saito, Satoshi Hata, Hiroshi Ikuta, High Jc and low anisotropy of hydrogen doped NdFeAsO superconducting thin film, Scientific Reports, 11, 5636 (2021).（水素ドープNdFeAsO超伝導薄膜の微細組織解析。Nagoya University、GermanyとのCollaborative research）
Dongyi Qin, Kazumasa Iida, Takafumi Hatano, Hikaru Saito, Yiming Ma, Chao Wang, Satoshi Hata, Michio Naito, Akiyasu Yamamoto, Realization of epitaxial thin films of the superconductor K-doped BaFe2As2, Physical Review Materials, 5, 014801 (2021).（カリウムドープBaFe2As2超伝導薄膜の微細組織解析。Nagoya University、京農工大とのCollaborative research）
Ji-Hwoan Lee, Byung-Nam Kim, Satoshi Hata, Byung-Koog Jang, Microstructural and spectroscopic analysis in non-uniform Y2O3 ceramics fabricated by spark plasma sintering, Journal of the Ceramic Society of Japan, 129(1), 66-72 (2021).（Y2O3焼結体の微細組織解析。学内およびNIMSとのCollaborative research）
H SOSIATI, W FIRMANSYAH, ARIS W NUGROHO, I SUDARISMAN, S HATA, THE PROPERTIES OF CHITOSAN NANOEMULSION/POLY (VINYL ALCOHOL) NANOCOMPOSITE MEMBRANES FOR WOUND CARE TREATMENT, Journal of Engineering Science and Technology, 15(6), 4091-4106 (2020).（チトサン繊維状材料の微細組織解析。IndiaネシアとのCollaborative research）
Itto Sugimoto, Seung Hwan C. Park, Satoshi Hirano, Hikaru Saito, Satoshi Hata, Microscopic Observation of Precipitation Behavior at Friction Stirring Zone of Super Duplex Stainless Steel, Materials Transactions, 60(9), 2003-2007 (2019).
（複相ステンレス鋼における摩擦攪拌接合組織。社会人Doctoral Student　杉本一等氏の成果）
Koichiro Suekuni, Yuta Shimizu, Eiji Nishibori, Hidetaka Kasai, Hikaru Saito, Daichi Yoshimoto, Katsuaki Hashikuni, Yohan Bouyrie, Raju Chetty, Michihiro Ohta, Emmanuel Guilmeau, Toshiro Takabatake, Kosuke Watanabe, Michitaka Ohtaki, Atomic-scale phonon scatterers in thermoelectric colusites with a tetrahedral framework structure, Journal of Materials Chemistry A, 7(1), 228-235 (2019).
（新規熱電材料の原子レベル微細構造解析。末國 晃一郎先生らとのCollaborative research）
Yusuke Shimada, Akiyasu Yamamoto, Yujiro Hayashi, Kohji Kishio, Jun-ichi Shimoyama, Satoshi Hata and Toyohiko J. Konno, The formation of defects and their influence on inter- and intra-granular current in sintered polycrystalline 122 phase Fe-based superconductors, Superconductor Science and Technology, 32, 084003 (9pp) (2019).
（多結晶Fe系122超伝導体の多結晶組織解析。東北大　嶋田雄介先生、東京農工大　山本明保先生らとのCollaborative research）
Kenji Hirota, Katsuhiro Takagi, Kenichi Hanasaku, Kana L. Hasezaki, Hikaru Saito, Satoshi Hata and Kazuhiro Hasezaki, Carbon observation by electron energy-loss spectroscopy and thermoelectric properties of graphite added bismuth antimony telluride prepared by mechanical alloying-hot pressing, Intermetallics, 109, 1-7 (2019).
（新規熱電材料の微細構造解析。徳島大　長谷崎先生とのCollaborative research）
超伝導インフォマティクスに基づく多結晶超伝導材料・磁石の開発（研究代表者：東京農工大学　山本明保　特任准Professor）
ミルフィーユ構造の材料科学ー新強化原理に基づく次世代構造材料の創製ー（研究代表者：東京大学　阿部英司　Professor）
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