| 1. |
Shigeto Yamasaki, Masatoshi Mitsuhara, Hideharu Nakashima, Development of High-Chromium Ferritic Heat-Resistant Steels with High Nitrogen Content, ISIJ International, 58, 6, 2018.06. |
| 2. |
Chengwu wang, Syuhei kurokawa, Toshiro Doi, Julong Yuan, Masatoshi Mitsuhara, Weifeng Yao, Kehua Zhang, SEM, AFM and TEM Studies for Femtosecond Laser Irradiation Effect on 4H-SiC Substrate at Near Threshold Fluence, the ECS Journal of Solid State Science and Technology, 7, 2, 29-34, 2018.02. |
| 3. |
Motomichi Koyama, Keita Yamanouchi, Qinghua Wang, Shien Ri, Yoshihisa Tanaka, Yasuaki Hamano, Shigeto Yamasaki, Masatoshi Mitsuhara, Masataka Ohkubo, Hiroshi Noguchi, Kaneaki Tsuzaki, Multiscale in situ deformation experiments
A sequential process from strain localization to failure in a laminated Ti-6Al-4V alloy, Materials Characterization, 10.1016/j.matchar.2017.04.010, 128, 217-225, 2017.06, The microscopic factors causing tensile failure of an α/β laminated Ti-6Al-4V alloy were investigated through in situ scanning electron microscopy and sampling moiré at an ambient temperature. Specifically, multiscale in situ microscopic observations were conducted to extract the most crucial factor of the failure. Slip localization in the vicinity of an intergranular α-sheet was clarified to be the primary factor that causes failure of the Ti-6Al-4V alloy. In addition, no relationship between interfacial strain localization and macroscopic shear localization at 45 degrees against the tensile direction was observed.. |
| 4. |
Shigeto Yamasaki, Masatoshi Mitsuhara, Hideharu Nakashima, Mitsuharu Yonemura, Evaluation of local creep strain in face-centred cubic heatresistant alloys using electron backscattered diffraction analysis, ISIJ International, 10.2355/isijinternational.ISIJINT-2016-712, 57, 5, 851-856, 2017.05, Creep strain in SUS347HTB austenitic heat-resistant steel and Ni-based heat-resistant alloys was evaluated by electron backscattered diffraction (EBSD). Localized crystallographic misorientations in the crept samples were quantified by using misorientation indicators such as kernel average misorientation and grain reference orientation deviation. In most crept samples, the misorientation indicators increased with creep deformation. However, this trend was not observed for alloys with dense dispersions. We proposed a method to extract and evaluate data only near the grain boundary from the total EBSD data. For Ni-based alloys, the misorientation indicators tended to increase preferentially near grain boundaries. Conversely, there was no substantial difference between the misorientation indicators near grain boundaries and the intergranular region for SUS347HTB. Consequently, although it is necessary to limit the region for evaluating the misorientation indicators according to the dispersion density of the reinforcing phase in the materials, the misorientation indicators, such as kernel average misorientation or grain reference orientation deviation, are useful for evaluating the creep strain in face-centred cubic heat-resistant alloys.. |
| 5. |
Shigeto Yamasaki, Masatoshi Mitsuhara, Hideharu Nakashima, Deformation microstructure and fracture behavior in creep-exposed Alloy 617, Materials Transactions, 10.2320/matertrans.M2016407, 58, 3, 442-449, 2017.03, The causes of the change in creep rupture ductility with the creep test temperature in Alloy 617 were investigated. The rupture ductility in the creep test was low at 700°C, whereas it was high at 800°C. Although the rupture ductility depended on the creep test temperature, creep fracture occurred due to cavity formation at the grain boundaries under all the creep conditions. In the sample crept at 800°C, subgrains developed with creep deformation. However, the crept sample at 700°C fractured before the subgrain formation. Although the work hardening due to the creep deformation occurred at 700°C, the work hardening in the sample crept at 800°C was small. The deformation of the grains was suppressed by the work hardening and by γ particle dispersion strengthening at 700°C. The difference in the strength in the crystal grains that resulted from the microstructure formed during creep caused the difference in the growth of the cavities.. |
| 6. |
Joshua A. Stuckner, Guo Quan Lu, Masatoshi Mitsuhara, William T. Reynolds, Mitsuhiro Murayama, The Influence of Processing Conditions on the 3-D Interconnected Structure of Nanosilver Paste, IEEE Transactions on Electron Devices, 10.1109/TED.2016.2639363, 64, 2, 494-499, 2017.02, Nanosilver paste is a promising material for power device interconnects. Interconnects are fabricated from nanosilver paste through a sintering process that drives off solvents and dispersants and fuses the silver particles. The integrity of the resulting interconnect is affected by the silver microstructure. This paper explored how sintering temperature, atmosphere, and time influenced microstructure as revealed by transmission electron microscopy and 3-D imaging via dual-beam serial sectioning. Nanosilver paste was sintered in combinations of the following parameters: A sintering atmosphere of air or nitrogen; temperatures of 120 °C or 255 °C; and sintering times of 5, 10, or 30 min. For the 255 °C temperature, oxygen in air facilitated removal of organic solvent and dispersant molecules and led to a microstructure with a coarser ligament network than samples sintered at the same temperature and times in nitrogen. The coarser ligament network was characterized by thick connected ligaments, large connected pores, and few isolated pores; this microstructure has been correlatedwith improved mechanical strength. Details of both 2-D and 3-D ligament network morphology, grain morphology, grain size, and the associated grain boundaries are discussed.. |
| 7. |
Masaru Itakura, Shin ichi Murayama, Masatoshi Mitsuhara, Minoru Nishida, Hiroaki Koga, Masaki Nakano, Hirotoshi Fukunaga, Microstructures of Ta-inserted SmCo5/Fe nanocomposite thick film magnets, Materials Transactions, 10.2320/matertrans.M2017035, 58, 10, 1351-1355, 2017.01, Ta-inserted SmCo5/Fe nanocomposite thick film magnets were synthesized by high-speed pulsed laser deposition followed by pulse annealing. The microstructures of the film magnets were characterized by high-resolution scanning electron microscopy and scanning transmission electron microscopy. The as-deposited thick film possessed a multilayered Sm-Co/Ta/α-Fe/Ta structure with amorphous Sm-Co layers and [110]-oriented crystalline α-Fe layers. After pulse annealing, many fine grains of Laves phase TaCo2 were formed, and then the multilayered structure was converted to a granular nanocomposite thick film magnet composed of fine crystalline grains of Sm(Co, Fe)5, α-(Fe, Co), and TaCo2. The volume fractions and grain sizes of hard magnetic Sm(Co, Fe)5, soft magnetic α-(Fe, Co), and TaCo2 were controlled by the thicknesses of the Ta layer, producing a nanocomposite thick film magnet with good exchange coupling.. |
| 8. |
Fumiya Watanabe, Zeid A. Nima, Takumi Honda, Masatoshi Mitsuhara, Minoru Nishida, Alexandru S. Biris, X-ray photoelectron spectroscopy and transmission electron microscopy analysis of silver-coated gold nanorods designed for bionanotechnology applications, Nanotechnology, 10.1088/1361-6528/28/2/025704, 28, 2, 2017.01, Multicomponent nano-agents were designed and built via a core-shell approach to enhance their surface enhanced Raman scattering (SERS) signals. These nano-agents had 36 nm �12 nm gold nanorod cores coated by 4 nm thick silver shell films and a subsequent thin bifunctional thiolated polyethylene glycol (HS-PEG-COOH) layer. Ambient time-lapsed SERS signal measurements of these functionalized nanorods taken over a two-week period indicated no signal degradation, suggesting that large portions of the silver shells remained in pure metallic form. The morphology of the nanorods was characterized by transmission electron microscopy (TEM) and ultra-high resolution scanning TEM. X-ray photoelectron spectroscopy (XPS) and Auger electron spectroscopy (AES) were utilized to assess the oxidation states of the silver shells covered by HS-PEG-COOH. The binding energies of Ag 3d XPS spectra yielded very small chemical shifts with oxidation; however, the AES peak shapes gave meaningful information about the extent of oxidation undergone by the nano-agent. While the silver shells without HS-PEG-COOH coatings oxidized significantly, the silver shells with HS-PEG-COOH remained predominantly metallic. In fact, six month-old samples still retained mostly metallic silver shells. These findings further demonstrate the stability and longevity of the nanostructures, indicating their significant potential as plasmonically active agents for highly sensitive detection in various biological systems, including cancer cells, tissues, or even organisms.. |
| 9. |
Takanori Ito, Shigeto Yamasaki, Masatoshi Mitsuhara, Minoru Nishida, Mitsuharu Yonemura, Effect of intergranular carbides on creep strength in nickel-based heat-resistant alloys, Materials Transactions, 10.2320/matertrans.M2016291, 58, 1, 52-58, 2017.01, Creep behaviors and microstructures for two Ni-based heat-resistant alloys with different carbon contents were investigated. The chemical compositions of the alloys were Ni-20Cr-15Co-6Mo-1Ti-2Al-2Nb-0.004 and 0.021C (mass%). The 0.004C and 0.021C alloys are referred to as the low-and high-C alloys, respectively. After solid-solution treatment at 1373 K for 1 h and isothermal annealing at 1023 K for 32 h, fine Ni3Al (γ) particles were formed in the grain interior of both alloys. The average diameter and number density of γ particles were similar in both alloys. M23C6 carbides were formed on grain boundaries after the isothermal annealing. Coverage ratios with the carbides in the high-C alloy were higher than that in the low-C alloys. Creep tests were performed at 1123 K and 130 MPa. The rupture time for the high-C alloy was longer than that for the low-C alloy, though both minimum creep rates were similar. In the high-C alloy, the creep strain was stored uniformly in the grain interior and the formation of a precipitate-free zone during the creep deformation was suppressed. Therefore, intergranular carbides with a high coverage ratio decreased the creep rate in the acceleration region.. |
| 10. |
L. Morsdorf, O. Jeannin, D. Barbier, Masatoshi Mitsuhara, D. Raabe, C. C. Tasan, Multiple mechanisms of lath martensite plasticity, Acta Materialia, 10.1016/j.actamat.2016.09.006, 121, 202-214, 2016.12, The multi-scale complexity of lath martensitic microstructures requires scale-bridging analyses to better understand the deformation mechanisms activated therein. In this study, plasticity in lath martensite is investigated by multi-field mapping of deformation-induced microstructure, topography, and strain evolution at different spatial resolution vs. field-of-view combinations. These investigations reveal site-specific initiation of dislocation activity within laths, as well as significant plastic accommodation in the vicinity of high angle block and packet boundaries. The observation of interface plasticity raises several questions regarding the role of thin inter-lath austenite films. Thus, accompanying transmission electron microscopy and synchrotron x-ray diffraction experiments are carried out to investigate the stability of these films to mechanical loading, and to discuss alternative boundary sliding mechanisms to explain the observed interface strain localization.. |
| 11. |
Jesbains Kaur, Noriyuki Kuwano, Khairur Rijal Jamaludin, Masatoshi Mitsuhara, Hikaru Saito, Satoshi Hata, Shuhei Suzuki, Hideto Miyake, Kazumasa Hiramatsu, Hiroyuki Fukuyama, Electron microscopy analysis of microstructure of postannealed aluminum nitride template, Applied Physics Express, 10.7567/APEX.9.065502, 9, 6, 2016.06, The microstructure of an AlN template after high-temperature annealing was investigated by transmission electron microscopy (TEM). The AlN template was prepared by depositing an AlN layer of about 200nm thickness on a sapphire (0001) substrate by metal-organic vapor phase epitaxy. The AlN template was annealed under (N2 + CO) atmosphere at 1500-1650 °C. TEM characterization was conducted to investigate the microstructural evolution, revealing that the postannealed AlN has a two-layer structure, the upper and lower layers of which exhibit Al and N polarities, respectively. It has been confirmed that postannealing is an effective treatment for controlling the microstructure.. |
| 12. |
K. Jesbains, N. Kuwano, K. R. Jamaludin, H. Miyake, K. Hiramatsu, S. Suzuki, Masatoshi Mitsuhara, Satoshi Hata, Y. Soejima, Reduction of dislocation density of aluminium nitride buffer layer grown on sapphire substrate, Journal of Mechanical Engineering and Sciences, 10.15282/jmes.10.1.2016.14.0182, 10, 1, 1908-1916, 2016.06, An aluminium nitride (AlN) buffer layer with 200 nm thickness was grown on (0001) sapphire substrate using the metal-organic vapour phase epitaxy (MOVPE) method in a low-pressure furnace, followed by a clean-up treatment of sapphire substrate at 1100°C. Thereafter, the AlN buffer layer was annealed at a high temperature in the range of 1500°C to 1700°C for 2 hours under the atmosphere of N2+CO. The objective of this research is to determine the microstructure changes with different annealing temperatures. Cross-sectional TEM has revealed that, after annealing at 1500°C, two types of defects remained in the AlN buffer layer: inverted cone shape domains and threading dislocations. The former domains were observed in an image taken with diffraction of g=0002, but not in an image with g=1010. The morphology and the diffraction condition for the image contrast strongly, suggesting that the domains are inversion domains. The threading dislocations were invisible in the image taken with the diffraction of g=0002, revealing that they were a-Type dislocations. However, after annealing at 1600oC, the inversion domains coalesced with each other to give a two-layer structure divided by a single inversion domain boundary at the centre of the AlN buffer layer. The density of threading dislocation was roughly estimated to be 5×109 cm-2 after annealing at 1500°C, and to be reduced to 5×108 cm-2 after annealing at 1600°C. These experimental results validate the fact that the annealing temperature around 1600°C is high enough to remove the defects by the diffusion process. Therefore, it was discovered that high temperature annealing is an effective treatment to alter the microstructure of AlN thin films and remove defects by the diffusion process. Annealing at high temperature is recommended to increase the emission efficiency for fabrication of optoelectronic devices.. |
| 13. |
M. Mitsuhara, T. Masuda, M. Nishida, T. Kunieda, H. Fujii, Precipitation Behavior During Aging in alpha Phase Titanium Supersaturated with Cu, METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 10.1007/s11661-016-3344-7, 47A, 4, 1544-1553, 2016.04. |
| 14. |
M. Matsuda, M. Mitsuhara, K. Takashima, M. Nishida, Antiphase Boundary-Like Structure of B19 Martensite in Ti-Ni-Pd Shape Memory Alloy, MATERIALS TRANSACTIONS, 10.2320/matertrans.MB201505, 57, 3, 250-256, 2016.03. |
| 15. |
M. Mitsuhara, S. Yamasaki, M. Miake, Hideharu Nakashima, M. Nishida, J. Kusumoto, A. Kanaya, Creep strengthening by lath boundaries in 9Cr ferritic heat-resistant steel, PHILOSOPHICAL MAGAZINE LETTERS, 10.1080/09500839.2016.1154200, 96, 2, 76-83, 2016.02. |
| 16. |
Y. Soejima, S. Motomura, M. Mitsuhara, T. Inamura, M. Nishida, In situ scanning electron microscopy study of the thermoelastic martensitic transformation in Ti-Ni shape memory alloy, ACTA MATERIALIA, 10.1016/j.actamat.2015.10.017, 103, 352-360, 2016.01. |
| 17. |
S. Yamasaki, M. Mitsuhara, K. Ikeda, S. Hata, H. Nakashima, 3D visualization of dislocation arrangement using scanning electron microscope serial sectioning method, SCRIPTA MATERIALIA, 10.1016/j.scriptamat.2015.02.001, 101, 80-83, 2015.05. |
| 18. |
Y. Miyajima, S. Komatsu, M. Mitsuhara, S. Hata, Hideharu Nakashima, N. Tsuji, Microstructural change due to isochronal annealing in severely plastic-deformed commercial purity aluminium, PHILOSOPHICAL MAGAZINE, 10.1080/14786435.2015.1021400, 95, 11, 1139-1149, 2015.04. |
| 19. |
M. Matsuda, F. Tanaka, S. Tsurekawa, K. Takashima, M. Mitsuhara, M. Nishida, Novel long-period stacking-ordered structure of martensite in zirconium-cobalt-palladium alloys, PHILOSOPHICAL MAGAZINE LETTERS, 10.1080/09500839.2014.995739, 95, 1, 21-29, 2015.01. |
| 20. |
N. Kuwano, Y. Ryu, M. Mitsuhara, C.H. Lin, S. Uchiyama, T. Maruyama, Y. Suzuki, S. Naritsuka, Behavior of defects in a-plane GaN films grown by low-angle-incidence microchannel epitaxy (LAIMCE), Journal of Crystal Growth, Vol.401, 409-413, 2014.07. |
| 21. |
Shigeto Yamasaki, Masatoshi Mitsuhara, Ken-ichi Ikeda, Satoshi Hata, Hideharu Nakashima, Low-Stress Creep Deformation in Long-Term Aged Ferritic Heat-Resistant Steel , Materials Transactions, Vol.55, pp.842-849, 2014.05. |
| 22. |
Keisuke Yamamoto, Masatoshi Mitsuhara, Keisuke Hiidome, Ryutaro Noguchi, Minoru Nishida, Dong Wang, and Hiroshi Nakashima, Role of an interlayer at a TiN/Ge contact to alleviate the intrinsic Fermi-level pinning position toward the conduction band edge, Applied Physics Letters, Vol.104, pp.132109-1-4, 2014.03. |
| 23. |
M. Matsuda, R. Yamashita, S. Tsurekawa, K. Takashima, M. Mitsuhara, M. Nishida, Antiphase boundary-like structure of B19′ martensite via R-phase transformation in Ti–Ni–Fe alloy, Journal of Alloys and Compounds, Vol.586, pp.87-93, 2014.02. |
| 24. |
B. Karbakhsh Ravari, M. Mitsuhara, S. Farjami, M. Nishida , Effect of thermal cycling on multistage martensitic transformation in aged Ti- 50.8 at.% Ni alloy , Materials Transactions, Vol.54, pp.2185-2188, 2013.12. |
| 25. |
E. Okunishi, T. Kawai, M. Mitsuhara, S. Farjami, M. Itakura, M. Nishida, HAADF-STEM studies of athermal and isothermal ω-phase in β-Zr alloy, Journal of Alloys and Compounds, Vol.577S, pp.S713-S716, 2013.11. |
| 26. |
H. Akamine, S. Farjami, M. Mitsuhara, M. Nishida, T. Fukuda and T. Kakeshita , Electron Microscopy Study of Preferential Variant Selection in CoPt Alloy Ordered under a Magnetic Field, MATERIALS TRANSACTIONS , Vol.54, pp.1715-1718, 2013.08. |
| 27. |
Tomonori Tokunaga, Hideo Watanabe, Naoaki Yoshida, Takuya Nagasaka, Ryuta Kasada, Young-Ju Lee, Akihiko Kimura, Masayuki Tokitani, Masatoshi Mitsuhara, Tatsuya Hinoki, Hideharu Nakashima, Suguru Masuzaki, Takeshi Takabatake, Nobuyoshi Kuroki, Koichiro Ezato, Satoshi Suzuki, Masato Akiba, Development of high-grade VPS-tungsten coatings on F82H reduced activation steel, Journal of Nuclear Materials, Vol.442, pp.S287-S291, 2013.01. |
| 28. |
R. Miyagawa, S. Yang, H. Miyake, K. Hiramatsu, T. Kuwahara, M. Mitsuhara, N. Kuwano, Microstructure of AlN grown on a nucleation layer on a sapphire substrate, Applied Physics Express, Vol.5, p.025501, 2012.01. |
| 29. |
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, p.e3, 2012.01. |
| 30. |
H. Idrissi, S. Turner, M. Mitsuhara, B. Wang, S. Hata , M. Coulombier, JP. Raskin, T. Pardoen, G. Van Tendeloo, D. Schryvers, Point defect clusters and dislocations in FIB irradiated nanocrystalline aluminium films: an electron tomography and aberration-corrected high resolution ADF-STEM study, Microscopy and Microanalysis, Vol.17, pp.983-990, 2011.11. |
| 31. |
光原昌寿、原田絵梨香、山崎重人、池田賢一、波多聰、中島英治、大塚智史、皆籐威二, 酸化物分散強化型9Crフェライト系耐熱鋼の3次元組織と高温強度, 可視化情報学会誌, Vol.31, pp.98-103, 2011.07. |
| 32. |
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. |
| 33. |
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, pp.3068-3078, 2011.02. |
| 34. |
U. D. Kulkarni, S. Hata, M. Mitsuhara, K. Ikeda, Ordering transformations in Ni75Mo15Mn10 alloy, Transactions of The Indian Institute of Metals, Vol.63, pp.819-822, 2010.10. |
| 35. |
Y. Miyajima, S. Komatsu, M. Mitsuhara, S. Hata, H, Nakashima, N. Tsuji, Change in electrical resistivity of commercial purity aluminium severely plastic deformed, Philosophical Magazine, Vol.90, pp.4475-4488, 2010.09. |
| 36. |
Y. Miyajima, S. Komatsu, M. Mitsuhara, S. Hata, H, Nakashima, N. Tsuji, Quantification of Internal Dislocation Density Using Scanning Transmission Electron Microscopy
in Ultrafine Grained Pure Aluminum Fabricated by Severe Plastic Deformation, Materials Science and Engineering A, Vol.528, pp.776-779, 2010.09. |
| 37. |
M. Mitsuhara, S. Hata, K. Ikeda, H. Nakashima, M. Tanaka, K. Higashida, Three-dimensional evaluation of dislocation arrangement
using electron tomography in austenitic steel, Proceedings of the 31st Ris? International Symposium on Materials Science, pp.353-360, 2010.08. |
| 38. |
H. Matsuo, M. Mitsuhara, K. Ikeda, S. Hata, H. Nakashima, Optimal imaging conditions for dislocation tomography using scanning transmission electron microscopy, International Journal of Fatigue, Vol.32, pp.592-598, 2010.01. |
| 39. |
S. Sadamatsu, M. Tanaka, K. Higashida, K. Kaneko, M. Mitsuhara, S. Hata, M. Honda, Crack tip dislocations observed by combining scanning trasmission electron microscopy and computed tomography, Advanced Materials Research, Vol.89-91, pp.473-478, 2010.01. |
| 40. |
Y. Yahiro, M. Mitsuhara, K Tokunaga, N. Yoshida, T. Hirai, K, Ezato, S. Suzuki, M .Akiba, H. Nakashima, Characterization of thick plasma spray tungsten coating on ferritic/martensitic steel F82H for high heat flux armor, Journal of Nuclear Materials, Vol.386-388, pp.784-788, 2009.01. |
| 41. |
K. Yamada, M. Mitsuhara, S. Hata, Y. Miyanaga, R. Teranishi, N. Mori, M. Mukaida, K. Kaneko, Three-dimensional observation of microstructures in Y123 films fabricated by TFA-MOD method, Physica C, Vol.469, pp.1446-1449, 2009.01. |
| 42. |
M. Tanaka, M. Honda, M. Mitsuhara, S. Hata, K. Kaneko, K. Higashida, Three-dimensional analyses of crack tip dislocations observed by electron tomography, Korean Journal of Microscopy, Korean Journal of Microscopy, Vol.38 Supplement, pp.221-222, 2008.11. |
| 43. |
M. Mitsuhara, M. Tanaka, K. Ikeda, S. Hata, H. Nakashima, Three-dimensional imaging of dislocations in steel using STEM tomography, Korean Journal of Microscopy, Vol.38 Supplement, pp.223-224, 2008.11. |
| 44. |
T. Isobe, M. Mitsuhara, K. Ikeda, S. Hata, H. Nakashima, Y. Todaka, M. Umemoto, Electron Microscopy Observation of Pure Copper Deformed by High Pressure Torsion, Proc. International Symposium on Giant Straining Process for Advanced Materials (GSAM-2008), pp.83-84, 2008.11. |
| 45. |
M. Tanaka, M. Honda, M. Mitsuhara, S. Hata, K. Kaneko, K. Higashida, Three-dimensional observation of dislocations by electron tomography in a silicon crystal, Materials Transactions, Vol.49, pp.1953-1956, 2008.08. |
| 46. |
M. Tanaka, K. Higashida, K. Kaneko, S. Hata, M. Mitsuhara, Crack tip dislocations revealed by electron tomography in silicon single crystal, Scripta Materialia, Vol.59, pp.901-904, 2008.07. |
| 47. |
M. Mitsuhara, Y. Yoshida, K. Ikeda, H. Nakashima and T. Wakai, Effects of Addition of V and Nb on Ω in High Cr Ferritic Steels, Materials Science Forum, Vol.561-565, pp.95-98, 2007.11. |
| 48. |
M. Mitsuhara, Y. Yoshida, K. Ikeda, H. Nakashima and T. Wakai, Mechanism of Creep Strengthening in High Cr Ferritic Heat Resistant Steel added V and Nb, Proc. the 1st International Symposium on Steel Science (IS3-2007), pp.227-230, 2007.05. |
| 49. |
M. Mitsuhara, Y. Yoshida, K. Ikeda, H. Nakashima and T. Wakai, Effect of Vanadium and Niobium on Creep Strength in 10% Chromium Steel Analyzed by STEM-EDS, Proc. CREEP8, Eighth International Conference on Creep and Fatigue at Elevated Temperatures, CREEP 2007-26746, pp.1-5, 2007.05. |
| 50. |
M. Mitsuhara, D. Terada and H. Nakashima, Life Assessment of Heat Resistant Steels using the Omega Method, Proc. FAILURES 2006, pp.287-297, 2006.02. |
| 51. |
Yuki Uchida, Sho Nakandakari, Kenji Kawahara, Shigeto Yamasaki, Masatoshi Mitsuhara, Hiroki Ago, Controlled Growth of Large-Area Uniform Multilayer Hexagonal Boron Nitride as an Effective 2D Substrate, ACS Nano. |
