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Researcher Informations
Last modified date：2012.1.4
Satoshi Hata
Associate Professor
Structural Materials Science
Department of Electrical and Materials Science
Faculty of Engineering Sciences

Graduate School

Department of Molecular and Material Sciences
Interdisciplinary Graduate School of Engineering Sciences

Undergraduate School

Department of Energy Science and Engineering
School of Engineering

E-Mail

Homepage

http://www.mm.kyushu-u.ac.jp/lab_05/index.html.

Phone

092-583-7522

Fax

092-583-7522

Academic Degree

Dr. Eng.

Field of Specialization

Metal physics, Electron microscopy

Outline Activities

Transmission electron miscroscopy for materials science
Nanostructure characterization of advanced structural and functional materials
Education of electron microscopy

Research

Research Interests

  • Microstructural analysis of Bi-based superconducting materials
    keyword : superconducting properties, crystal defects、electron microscopy
    2010.04.
  • Study of bulk nanometals
    keyword : ultrafine grains, severe plastic deformation, grain boundary, crystal defects、electron microscopy
    2010.04.
  • Si-based semiconducting materials for new devices
    keyword : Si semiconductor device
    2007.04.
  • Advanced heat resistant steel
    keyword : heat resistant steel
    2007.04.
  • Electron tomography for crystalline materials
    keyword : electron tomography, 3D, crystalline material
    2004.01.
  • Microstructure in bone tissue studied by transmission electron microscopy
    keyword : bone, tissue, apatite
    2003.01～2010.03.
  • Microstructural control of MgB2 superconducting materials
    keyword : MgB2, superconductivity, film, tape, wire, analytical electron microscopy
    2003.01.
  • Microstructure and mechanical properties of Fe-Cu alloy
    keyword : Fe-Cu alloy, scanning transmission electron microscopy
    2003.01.
  • Microstructure in TiAl alloys
    keyword : Microstructure TiAl superstructure ordering
    2001.01.
  • ALCHEMI study of multi-component alloys
    keyword : ALCHEMI, multi-component alloy
    1999.01～2003.03.
  • Rapidly solidified Ti-Al based alloys studied by transmission electron microscopy
    keyword : PREP, Ti-Al-Mo alloy, ball milling
    1996.01～2009.03.
  • Short-range order in Ni-Mo alloys studied by high-resolution electron microscopy
    keyword : short-range order, Ni-Mo alloy, HRTEM, Monte Carlo simulstion
    1994.01～2001.03.

Current and Past Project

  • Innovation of novel functional materials by giant straining process

Academic Activities

Books

 Show All Books >> 
1. Edited by Patrice E. A. Turchi, Antonios Gonis, Krishna Rajan, and Annemarie Meike,Complex Inorganic Solids ;Structural, Stability, and Magnetic Properties of Alloys,Springer Science+Business Media, Inc., New York,159-174,2005.12.

Reports

 Show All Reports >> 
1. Microstructure of isothermal omega-phase in beta-Ti alloys. .
2. Electron tomography to visualize dislocations in three-dimension. .
3. Three-dimensional visualization of lattice defects by electron tomography. .
4. Observation of microstructure formation in an in-situ fabrication process of MgB2 superconducting tapes. .
5. Effectiveness of scanning transmission electron microscopy observation with medium and low magnifications for steels. .
6. Three-dimensional observation of superlattice domains in ordering alloys by DFTEM tomography. .
7. Atomistic structure of short-range order state in alloys, S. Hata and S. Matsumura, Journal of the Japan Society of Crystals, 44, 225 (2002). (Japanese). .

Papers

 Show All Papers >> 
1. Jung Ho Kim, Sangjun Oh, Yoon-Uk Heo, Satoshi Hata, Hiroaki Kumakura, Akiyoshi Matsumoto, Masatoshi Mitsuhara, Seyong Choi, Yusuke Shimada, Minoru Maeda, Judith L MacManus-Driscoll, Shi Xue Dou,Microscopic role of carbon on MgB2 wire for critical current density comparable to NbTi,NPG Asia Materials,Vol.4,No.e3,2012.01. .
2. Hosni Idrissi, Stuart Turner, Masatoshi Mitsuhara, Binjie Wang, Satoshi Hata, Michael Coulombier, Jean-Pierre Raskin, Thomas Pardoen, Gustaaf Van Tendeloo, Dominique Schryvers,Point defect clusters and dislocations in FIB irradiated nanocrystalline aluminum films: an electron tomography and aberration-corrected high-resolution ADF-STEM study,Microscopy and Microanalysis,Vol.17,No.9,pp.983-990,2011.12. .
3. Three-dimensional microstructure and high temperature strength in ODS 9Cr ferritic heat resistant steels. .
4. Y. Shimada, Y. Kubota, S. Hata, K. Ikeda, H. Nakashima, A. Matsumoto, K.Togano, H. Kumakura,Electron microscopy observation of MgB2 wire prepared by an internal Mg diffusion method,Physica C,Vol.in press,2011.04. .
5. S. Hata, H. Miyazaki, S. Miyazaki, M. Mitsuhara, M. Tanaka, K. Kaneko, K. Higashida, K. Ikeda, H. Nakashima, S. Matsumura, J. S. Barnard, J. H. Sharp, P. A. Midgley,High-angle triple-axis specimen holder for three-dimensional diffraction contrast imaging in transmission electron microscopy,Ultramicroscopy,Vol.111,pp.1168-1175,2011.03. .
6. U. D. Kulkarni, S. Hata, T. Nakano, M. Mitsuhara, K. Ikeda, H. Nakashima,Monte Carlo simulation of antiphase boundaries and growth of antiphase domains in Al5Ti3 phase in Al-rich gamma-TiAl intermetallics,Philosophical Magazine,Vol.91,No.22,pp.3068-3078,2011.02. .
7. Y. Shimada, Y. Kubota, S. Hata, K. Ikeda, H. Nakashima, A. Matsumoto, K. Togano, J. Hur, H. Kumakura,Microstructure in high-density MgB2 wires prepared by an internal Mg diffusion method,IEEE Transactions on Applied Superconductivity,Vol.21,No.3,pp.2668-2671,2011.01. .
8. U. D. Kulkarni, S. Hata, M. Mitsuhara, K. Ikeda,Ordering Transformations in Ni75Mo15Mn10 alloy,Transactions of the Indian Institute of Metals,Vol.63,No.5,pp.819-822,2010.09. .
9. S. Hata, H. Sosiati, Y. Shimada, T. Doi, A. Matsumoto, H. Kitaguchi, K. Ikeda, H. Nakashima,Microstructure in MgB2/Ni alternately-layered superconducting film,AMTC Letters
(ISSN 1882-9465),Vol.2,pp.268-269,2010.06. .
10. H. Matsuo, M. Mitsuhara, K. Ikeda, S. Hata, H. Nakashima,Electron microscopy analysis for crack propagation behavior of alumina,International Journal of Fatigue,Vol.32,pp.592-598,2010.06. .
11. Influences of microstructure on critical current properties in MgB2 superconducting bulk fabricated using a premix-PICT method. .
12. FIB thinning and TEM observation of hard tissue. .
13. S. Hata,Three-dimensional imaging of nanostructure in crystals: development of advanced electron tomography for materials science,Proceedings of the 10th Cross Straits Symposium on Materials, Energy and Environmental Sciences,20-23.,2008.11. .
14. K. Kimura, K. Matsuyama, S. Hata and S. Matsumura,Tomographic dark-field TEM analysis of ordered variant morphology in Ni4Mo alloy,Korean Journal of Microscopy
Abstract Book of the 9th Asia-Pacific Microscopy Conference in conjunction with the 39th Annual Meeting of the Korean Society of Microscopy,Vol. 38 No. 4 Supplement (2008), 264-265.,2008.11. .
15. Mechanical Properties of Polycrystalline MgB2 bulk. .
16. Masaki Tanaka, Masaki Honda, Masatoshi Mitsuhara, Satoshi Hata, Kenji Kaneko and Kenji Higashida,Three-Dimensional Observation of Dislocations by Electron Tomography in a Silicon Crystal,Materials Transactions,Vol. 49, No. 9 (2008) 1953-1956.,2008.08. .
17. Masaki Tanaka, Kenji Higashida, Kenji Kaneko, Satoshi Hata and Masatoshi Mitsuhara,Crack tip dislocations revealed by electron tomography in silicon single crystal,Scripta Materialia,Vol. 59 (2008) 901-904.,2008.07. .
18. Satoshi Hata, Harini Sosiati, Takeshi Yoshidome, Noriyuki Kuwano, Akiyoshi Matsumoto, Hitoshi Kitaguchi and Hiroaki Kumakura,Transmission Electron Microscopy Observation of MgB2 Superconducting Materials with Inhomogeneous Microstructure: Influences of Specimen Preparation Methods,Engineering Sciences Reports, Kyushu University,Vol. 30 (2008) 29-24.,2008.06. .
19. Satoshi Hata, Kosuke Kimura, Hongye Gao, Syo Matsumura, Minoru Doi, Tomokazu Moritani, Jonathan S. Barnard, Jenna R. Tong, Jo H. Sharp, and Paul A. Midgley,Electron Tomography Imaging and Analysis of γ’ and γ Domains in Ni-Based Superalloys,Advanced Materials,Vol. 20 (2008) 1905-1909.,2008.04. .
20. N. Yuzuriha, H. Sosiati, S. Hata, N. Kuwano, H. Yamada, N. Uchiyama, A. Matsumoto, H. Kitaguchi and H. Kumakura,Transmission electron microscopy analysis of C4H4S-doped MgB2 tapes,Journal of Physics: Conference Series,Vol. 97 (2008) 012277-1–6.,2008.03. .
21. S. Hata, T. Nakano, N. Kuwano, M. Itakura, S. Matsumura and Y. Umakoshi,Microscopic properties of long-period ordering in Al-rich TiAl alloys,Metallurgical and Materials Transactions A,Vol. 39 No. 7 (2008) 1610-1617.,2008.01. .
22. T. Doi, H. Kitaguchi, S. Hata, K. Fukuyama, K. Masuda, K. Takahashi, T. Yoshidome, Y. Hakuraku and N. Kuwano,Monotonic decrease of Tc’s with thinning the superconducting MgB2 layer in MgB2/Ni and MgB2/B alternately-layered thin films,Superconductor Science and Technology,20, 1223-1227,2007.12. .
23. Three-dimensional electron tomography observation of precipitates at lath boundaries in 10 Cr ferritic steel with V addition. .
24. Three-dimensional observation of dislocations in Si single crystal using a high-angle triple-axis (HATA) specimen holder. .
25. Three-dimensional observation of variants of Ni4Mo ordered phase using dark-field TEM tomography. .
26. M. Tanigawa, S. Hata, S. Harini, K. Ikeda, H. Nakashima, T. Nakano, Y. Umakoshi,Electron Microscopy Observation of Formation of Apatite Crystals in Bone,Proc. of the 9th Cross Straits Symposium on Materials, Energy and Environmental Engineering,(2007), 71-72.,2007.11. .
27. Satoshi Hata, Harini Sosiati, Noriyuki Kuwano, Masaru Itakura, Takayoshi Nakano and Yukichi Umakoshi,Removing Focused ion-beam damages on transmission electron microscopy specimens by using a plasma cleaner,Journal of Electron Microscopy,Vol. 55, No. 1 (2006), 23-26,2006.05. .
28. S. Hata, T. Yoshidome, H. Sosiati, Y. Tomokiyo, N. Kuwano, A. Matsumoto, H. Kitaguchi and H. Kumakura,Microstructures of MgB2/Fe tapes fabricated by an in situ powder-in-tube method using MgH2 as a precursor powder,Superconductor Science and Technology,Vol. 19 (2006), 161-168,2006.01. .
29. K. Kimura, T. Horiuchi, S. Hata, S. Matsumura,Dark-field transmission electron microscopy for a tilt series of ordering alloys: toward electron tomography,Journal of Electron Microscopy,Vol. 54, No. 4 (2005), 373-377,2005.12. .
30. H. Sosiati, S. Hata, N. Kuwano, Y. Tomokiyo, H. Kitaguchi, T. Doi, H. Yamamoto, A. Matsumoto, K. Saitoh and H. Kumakura,Relationship between microstructure and Jc property in MgB2/a-Al2O3 film fabricated by in situ electron beam evaporation,Superconductor Science and Technology,Vol. 18 (2005), 1275-1279,2005.08. .
31. Satoshi Hata, Harini Sosiati, Noriyuki Kuwano, Yoshitsugu Tomokiyo, Akiyoshi Matsumoto, Masao Fukutomi, Hitoshi Kitaguchi, Kazunori Komori, and Hiroaki Kumakura,Effects of heat treatments on microstructure formation in MgB2/YSZ/Hastelloy film,IEEE Transactions on Applied Superconductivity,15(2), 3238-3241,2005.06. .
32. S. Hata, K. Shiraishi, M. Itakura, N. Kuwano, T. Nakano and Y. Umakoshi,Long-period ordering in a TiAl single crystal with a gradient composition,Philosophical Magazine Letters,85(4), 175-185,2005.04. .
33. Manabu Ishimaru, Yoshihiko Hirotsu, Satoshi Hata, Chaoli Ma, Nobuyuki Nishiyama, Kenji Amiya and Akihisa Inoue,Structural characterization of Cu–Ti-based bulk metallic glass by advanced electron microscopy,Philosophical Magazine Letters,85(3), 125-133,2005.03. .

Presentations

 Show All Presentations >> 
1. 3D observation of dislocations at grain boundary in Mo bicrystal after compressive deformation. 
2. Three-dimensional visualization of nanostructure in crystals by electron microscopy. 
3. Promising applications of advanced electron microscopy to bulk nanometals. 
4. Microstructural observation of MgB2 wires by x-ray computed tomography. 
5. Microstructure in Cu added MgB2 wire using a Mg2Cu compound as the additional source material. 
6. Microstructure in MgB2 thin film prepared on Al tapes. 
7. Application of TEM tomography to crystal materials using diffraction contrast. 
8. Importance of macrostructural observation in MgB2 superconducting materials. 
9. Microstructure in Mg2Cu-doped MgB2 superconducting wires. 
10. HVEM-EELS tomography observation of Ni-based alloys. 
11. Application of TEM tomography to crystal materials using diffraction contrast. 
12. Three-dimensional distribution of dislocations observed by TEM. 
13. Achievements of TEM tomography observations for metallic materials. 
14. STEM imaging and its application to three-dimensional tomography for steel research. 
15. Issues on image resolution of TEM-CT for materials characterization. 
16. Three-dimensional observation of dislocation microstructure in Ni-based superalloy after creep deformation. 
17. Critical current property and microstructure in MgB2 tape fabricated by an internal Mg diffusion method. 
18. Characterization of metallic materials by TEM tomography. 
19. Applied Superconductivity Conference 2010. 
20. Microstructure in MgB2 superconducting film after etching process to fabricate a micro-bridge shaped structure. 
21. Microstructural observation of initial stages of two-step phase separation in Ni-Al-Ti alloy by electron tomography. 
22. High-angle triple-axis specimen holder and its applications. 
23. Observation of crystalline microstructures by energy-filtered HVEM. 
24. Microstructure in MgB2 wires prepared by an internal Mg diffusion method. 
25. Critical current properties and microstructural control in MgB2 superconducting films. 
26. Analysis of distributions of crystallographic orientations in polycrystalline MgB2 superconducting bulks. 
27. Development of TEM tomography observation of microstructure in crystals. 
28. Enhancement of critical current density by controlling microstructure in MgB2 superconducting thin films. 
29. Jc properties and microstructure in MgB2 bulks fabricated by a premix-PICT diffusion method. 
30. Three-dimensional visualization of crystalline microstructures by transmissioin electron microscopy. 
31. Experimental evaluation of the feasibility of three-dimensional reconstruction in electron tomography. 
32. Experimental evaluation of the feasibility of three-dimensional reconstruction in electron tomography. 
33. Microstructural observation of MgB2 superconducting bulks fabricated by a PICT diffusion method. 
34. Fundamentals of TEM tomography and its application to metals etc.. 
35. Electron microscopy observation of oxygen distribution in MgB2 polycrystalline microstructures. 
36. Thin-film specimen preparation and transmission electron microscopy observation of bone using techniques of material characterization. 
37. Three-dimensional analysis of omega phase in omega-Ti alloy by electron tomography. 
38. Quantitative evaluation of dislocation microstructure in steel by STEM tomography. 
39. Study on the accuracy of three-dimensional reconstructions in dark-field TEM tomography. 
40. Microstructural observation of heat treatment processes in in-situ MgB2 tapes. 
41. Recent findings in microstructural observations of MgB2. 
42. Microstructural observation of heat treatment processes in in-situ MgB2 tapes. 
43. Thin-film specimen preparation and transmission electron microscopy observation of bone using techniques of material characterization. 
44. Electron microscopy observation of biological apatite in femur of mouse. 
45. Reduction of FIB damage layers using a plasma cleaner. 
46. Characterization of metallic materials using TEM tomography. 
47. Electron tomography observation of microstructure in crystals. 
48. Observation conditions for convergent beam electron diffraction patterns of body-centered cubic iron. 
49. Electron microscopy study of microstructure in bone by researchers of materials. 
50. Long-period superstructure phases and their defect structures in Al-rich TiAl. 
51. Present status of three-dimensional visualization by 3D-TEM. 
52. New approach to microstructure analysis in steel using nano-probe electron microscopy techniques. 
53. Composition dependence on microstructure in MgB2 film fabricated by electron beam evaporation. 
54. Influence of doping with carbon compounds on microstructure in MgB2 tape. 
55. Mechanical properties of high density MgB2 bulk. 
56. Observation of deformed microstructures containing large strain using a STEM diffraction contrast method. 
57. TEM observation of endochondral ossification regions of rat. 
58. Three-dimensional structure analysis of dislocations using an ADF method. 
59. Electron microscopy observation of formation and crystallographic orientations of hydroxyapatite crystals in the region of endochondral ossification. 
60. TEM observation of high-density MgB2 bulk. 
61. Microstructure observation of superconductors by transmission electron microscopy. 
62. Three-dimensional electron tomography observation of high-Cr ferritic high-temperature steel with V and Nb addition. 
63. Phase separation of gamma and gamma’ phases in Ni-Si-Fe alloy. 
64. Development of electron tomography techniques for intermetallic materials. 
65. Three-dimensional TEM observation of phase separation of ’ particles in Ni-Al-Ti alloys. 
66. Three-dimensional electron tomography observation of high-Cr ferritic high temperature steel. 
67. Observation of three-dimensional microstructures of ordered domain variants using dark-field TEM tomography. 
68. FIB-TEM observation of microstructures near a growth plate of a femur of mouse. 
69. TEM/STEM observation of Cu precipitates and dislocations in Fe-Cu alloy. 
70. Jc-B property of MgB2 thin film with nanometre-sized Ni layers introduced as artificial pinning centers.. 
71. TEM analysis of site-occupancy of oxygen in InN thin film fabricated by MBE method. 
72. Electron microscopy observation of Cu particles and dislocations in Fe-3 mass% Cu alloy. 
73. Three-dimensional domain structure in alloys observed by TEM. 
74. Dependence of heat treatment conditions on Al2Ti-type long-period ordered state in TiAl single crystal with composition gradient. 
75. Three-dimensional morphorogy analysis of gamma particles precipitated from gamma' phase in Ni-Al-Ti alloy. 
76. Attempt of microstructure observation of hard tissues using FIB-TEM. 
77. Three-dimensional microstructure analysis of crystalline materials using electron tomography. 
78. Influence of oxgen atoms introduced in III-group nitride crystal on its physical property. 
79. Properties of microstructures in MgB2 observed by TEM (Part 2). 
80. Pinning effect of very thin Ni-layers inserted with a interval of 15 nm in MgB2 superconducting film. 
81. Introduction of pinning centers into MgB2 thin film using nanosized layered structures. 
82. TEM observation of in-situ MgB2 tape doped with thiophene. 
83. Microstructure observation of MgB2 thin film with introducing nanometre-sized Ni layers. 
84. Microstructures of MgB2 thin films fabricated with introducing oxygen. 
85. Three-dimensional observation of Ni4Mo-type ordered domain structure using dark-field TEM tomography. 
86. Influence of one-direction diffusion on long-period ordering in Al-rich TiAl single crystal. 
87. Microstructures of outer pressure-type whiskers grown on tin plates. 
88. Three-dimensional observation of ordered domain structures by dark-field TEM tomography. 
89. Electron microscopy observation of interactions between dislocations and Cu particles in Fe-Cu alloy. 
90. Microstructural features of MgB2 studied by TEM. 
91. TEM analysis of nano-SiC doped MgB2 superconducting tapes. 
92. Influence of Cu segregation at grain boundaries on grain growth of austenite. 
93. Influence of disperesion of Cu nanoparticles on tensile deformation behaviour in steel. 
94. Three-dimensional observation of microstructures in ordering alloys -attempt of dark-field TEM tomography-. 
95. FIB-TEM analysis of microstructural changes with nano-SiC doping in in-situ MgB2 tapes. 
96. Assessment of observation conditions for dark-field TEM tomography of ordering alloys. 
97. Formation of APBs in higher-order superstructure phases and controlling long-period superstructures. 
98. Optimization of observation conditions for dark-field TEM tomography of ordering alloys. 
99. STEM-EDX analysis of Cu at austenite grain boundaries. 
100. Influence of kinetics on microstructure formation in ordering alloys -long-period ordering in Al-rich TiAl alloy-. 
101. Nanostructure analysis of Cu-Ti-based bulk metallic glass by transmission electron microscopy. 
102. Observation of ordered and disordered domain particles in Ni-Al-Ti alloys by dark-field TEM tomography. 
103. Observation of γ and γ' precipitates in Ni-Al-Ti alloy by dark-field TEM tomography. 
104. Fabrication of LiCoO2 nano-particles using an excess Li method. 
105. Effect of plasma cleaning on damage layers of FIB-prepared specimens. 
106. Attempt of improving TEM image quality of FIB-prepared specimens by plasma cleaner. 
107. Three-Dimensional Observation of Ordered and Disordered Precipitates Using Dark-Field TEM Tomography. 
108. Ordering Process and Formation of Anti-Phase Boundary in Long-Period Superstructures of Al-Rich TiAl Single Crystals. 
109. Microstructures of MgB2 Superconducting Films Fabricated by in situ EB and ex situ PLD Techniques. 
110. Microstructural Study of SiC-doped MgB2/Fe Superconducting Tapes Fabricated by in situ Powder-in-tube Process. 
111. Effect of addition of SiC nano-particles on microstructures and superconducting properties in MgB2 tapes. 
112. Effect of nano-SiC doping on microstructure of in situ powder-in-tube MgB2 tape. 
113. Damaged microstructure in A335B steel (2)- STEM observation. 

Other Research Activities

  • 2007.07,Development of high-angle triple-axis (HATA) holder for electron tomography.

Membership in Academic Society

  • MRS

Awards

  • Three-dimensional visualization of lattice defects by electron tomography
  • High-angle triple-axis specimen holder and its applications
  • 3D Visualization of Dislocation Arrangements in Austenitic Stainless Steel with Dual-Axis STEM Tomography
  • Transmission electron microscopy observation of planar defects in SrAl2O4-based stress-induced luminescent material
  • High-resolution electron microscopy observation of twin interfaces in SrAl2O4:Eu2+ stress-induced luminescent material
  • Complete three-dimensional visualization of dislocations in stainless austenitic steel
  • EDS analysis and 3D observation of precipitates at lath boundaries in high-strength and high-temperature steel with V addition
  • Analysis of long-period superstructures in Al-rich TiAl studied by composition-gradient single crystals and a focused ion beam microsampling method
  • Study of short-range ordered structures in alloys by quantitative high-resolution electron microscopy
  • Study of microscopic mechanism of short- and long-range ordering in Ni-Mo alloy

Educational

Educational Activities

Exercises to study properties of structural materials
Experiments to study properties of structural materials
Instrumental Analysis for Materials
Fundamentals of mechanical properties of solids
Properties of structural materials
Non-crystalline and Amorphous Materials
Experiments to study materials science and engineering
Excercises to study materials science and engineering
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