Recent Publications

・ Nguyen Van Duc, Takuya Ohba:
Structure Parameters of the Au-49.5at%Cd Martensite at Various Temperatures
Approaching the Reverse Transformation Temperature As
Materials Transactions, 47 (2006) 326-330.

・ T. Koyano, T. Nomiyama, N. Kanoh, H. Numata, T. Ohba, E. Kita, and H. Ohtsuka:
Magnetization of α' iron-nitride produced through the fcc -> bct
martensitic transformation in high magnetic field
J. Appl. Phys., 100 (2006) 033906.

・ T. Furuhara, H. Kawata, S. Morito and T. Maki:
Crystallography of upper bainite in Fe-Ni-C alloys
Materials Science and Engineering A, 431 (2006) 228-236.

・ T. Ohba, N. Miyamoto, K. Fukuda, T. Fukuda, T. Kakeshita and K. Kato:
Fundamental Structure of a Ni2MnGa Intermediate Phase Having an Orthorhombic Lattice
Smart Material and Structures 14 (2005) S197-S200.

・ H. Miyamoto, T. Taniwaki, T. Ohba, K. Ohtsuka, S. Nishigori and K. Kato:
Two-Stage B2-B19-B19’ martensitic transformation in a Ti50Ni30Cu20 Alloy
Observed by Synchrotron Radiation
Scripta Materiali 53, (2005) 171-175.

・ T. Ohba, N. Miyamoto, K. Fukuda, T. Fukuda, T. Kakeshita and K. Kato:
Fundamental Structure of a Ni2MnGa Intermediate Phase Having an Orthorhombic Lattice
Smart Material and Structures 14,(2005) S197-S200.

・ K. Tanaka, H. Inui, T. Ohba, S. Tsutsui and M. Mizumaki:
Crystallographic Features of Rhenium Disilicide
Mat. Res. Soc. Symp. Proc. (2004) Vol. 793. S8.31.1-6.

・ M. Nishida, T. Hara. T. Ohba, K. Yamaguchi, K. Tanaka and K. Yamauchi:
Experimental Consideration of Multistage Martensitic Transformation and
Precipitation Behavior in Aged Ni-Rich Ti-Ni Shape Memory Alloys
Materials Transactions, Vol. 44, (2003) 2631-2636.

・T. Ohba, N. Kanou, T. Koyano, H. Ikeda, H. Ohtsuka, H. Wada and K. Kato
X-ray Diffraction Studies of Fe-N Bulk-Processed in a Magnetic Field Using
Synchrotron Radiation
Transactions of the Materials Research Society of Japan, Vol. 44, No. 12, (2003) 2537-2540.

・ T. Ohba, T. Fukuda, T. Tabata and T. Kakeshita
Neutron Scattering Study on Equi-Atomic TiNi Alloy
J. Phys. IV France 112, (2003) 639-642.

・T. Ohba, K. Sato, J. Ye and K. Otsuka
Temperature Dependence of Lattice Parameters in z2' Au-49.5at%Cd Martensite
and The Relationship Between Parent and Martensite.
Scripta Materialia, vol 49, (2003) 291 - 295.

・T. Koyano, T. Nomiyama, H. Ikeda, N. Kanoh, T. Ohba, H. Ohtsuka and H. Wasa
Martensitic Transformation of g-FeN in High Magnetic Field Generated by a
Hybride Magnet.
Transactions of the Materials Research Society of Japan 28[2], (2003)
235-237.

・T. Ohba, F. Yanagita and M. Mitsuka, T. Hara and K. Kato
Rietveld Analyses on Hydrogenated TiNi Shape Memory Alloy and Multiple-stage Transformation．
Materials Transaction JIM,43, (2002) 798-801.

・H. Ishibashi, M. Kogachi, T. Ohba, X. Ren and K. Otsuka
Vacancy Migration and Long-range Orderng due to Ageing in AuCd Shape Memory
Alloys.
Materials Science and Engineering, A329-331, (2002) 568-572.

・D. Shindo, Y. Murakami and T. Ohba
Understanding Precursor Phenomena for the R-Phase Transformation in
Ti-Ni-Based Alloys.
MRS Bulletin, 27 (2002) 121-127.

・T. Kishi, K. Suzuki, D. Serita, S. Kubo, Y. Yamada and T. Ohba
Structure of Epitaxial BiPbSrCuO Films grown at Low temperature.
Physica, C357-360 (2001) 1394-1398.

・T. Ohba and Y. Miyata
Precursor Phenomenon on TiNi Phase Transformation by X-ray Diffraction.
J. Phys. IV France, 11 (2001) Pr8-31-35.

・T. Ohba, L. Shi, T. Hara, H. Funaki and M. Sato
　 Precursor behavior in structure factors of AuCd alloy observed by different wavelength X-ray.
　　Mat. Sci. & Eng. 312 (2001) 244-247.

・M. Kogachi, H. Ishibashi, T. Ohba, X. Ren and K. Otsuka
　　Examination of Vacancy Migration and Long-range Ordering Due to Aging in
　　Au-49.8at%Cd shape Memory Alloy.
　　Scripta Materialia, 42 (2000) 841-847.

・T. Koyano, H. Ikeda, R. Yoshizaki, K. Uehara, A. Tasaki, H. Ihtsuka, T. Takamasu, H. Wada, G. Kido and T. Ohba
　　Effect of Magnetic Field on g → a’ Martensitic Transformation and
　　Magnetization of a’ and a” Iron-Nitrogen.
　　Materials Transaction JIM, 41 (2000) 923-927.

・Y. Kubota, M. Takata, M. Sakata, T. Ohba, K. Kifune and T. Tadaki
　　A Charge Density Study of the Intermetallic Compound MgCu2 by the Maximum
　　Entropy Method.
　　J. Phys, Condens. Matter 12 (2000) 1253-1259.

・G. R. Barsch, T. Ohba and D. M. Hatch
　　Landau Theory of Structural Transformations in Titanium-Nickel and
　　Gold-Cadmium Alloys.
　　Materials Science & Engineering, A273-275 (1999) 161-165.