材料工学科

研究成果 1983 2019

フィルター
Article
2006
7 引用 (Scopus)
electromagnetic properties
pellets
Seed
seeds
Doping (additives)
2005
4 引用 (Scopus)

Analysis of mixed ternary LREBa2Cu3Oy nano-structures by STM and TEM

Miryala, M., Sakai, N., Jirsa, M., Murakami, M., Koshizuka, N. & Hirabayashi, I., 2005 10 1, : : Physica C: Superconductivity and its Applications. 426-431, I, p. 196-201 6 p.

研究成果: Article

Scanning tunneling microscopy
Superconducting materials
scanning tunneling microscopy
Magnetic fields
Transmission electron microscopy
1 引用 (Scopus)
Magnetic moments
Superconducting materials
Modulation
Transmission electron microscopy
Crystals
57 引用 (Scopus)

Application of superconducting magnetic bearings to a 10 kWh-class flywheel energy storage system

Ichihara, T., Matsunaga, K., Kita, M., Hirabayashi, I., Isono, M., Hirose, M., Yoshii, K., Kurihara, K., Saito, O., Saito, S., Murakami, M., Takabayashi, H., Natsumeda, M. & Koshizuka, N., 2005 6, : : IEEE Transactions on Applied Superconductivity. 15, 2 PART II, p. 2245-2248 4 p.

研究成果: Article

flywheels
magnetic bearings
Magnetic bearings
Flywheels
energy storage
10 引用 (Scopus)

Barium cerate as effective flux pinning centers in Y123 bulk materials

Nariki, S., Sakai, N., Murakami, M. & Hirabayashi, I., 2005 10 1, : : Physica C: Superconductivity and its Applications. 426-431, I, p. 602-607 6 p.

研究成果: Article

Flux pinning
flux pinning
Barium
Superconducting materials
barium
11 引用 (Scopus)
high temperature superconductors
Electron diffraction
uranium oxides
diffraction
Uranium
3 引用 (Scopus)

Corrosion monitoring technique and surface observation method in atmospheric corrosion evaluation

Noda, K., Katayama, H., Masuda, H., Ono, T. & Tahara, A., 2005 8, : : Zairyo to Kankyo/ Corrosion Engineering. 54, 8, p. 368-374 7 p.

研究成果: Article

Atmospheric corrosion
Corrosion
Monitoring
Steel
Ions
2 引用 (Scopus)
Powders
Superconducting materials
microstructure
Microstructure
Critical currents
levitation
Powders
balls
Flux pinning
Fabrication
6 引用 (Scopus)

Effect of preloading on the relaxation of the levitation force in bulk Y-Ba-Cu-O superconductors

Komano, Y., Ito, E., Sawa, K., Iwasa, Y., Ichihara, T., Sakai, N., Hirabayashi, I. & Murakami, M., 2005 10 1, : : Physica C: Superconductivity and its Applications. 426-431, I, p. 789-793 5 p.

研究成果: Article

prestressing
YBCO superconductors
Electromagnetic induction
levitation
Solenoids
Superconducting materials
inhomogeneity
Vortex flow
vortices
Wavelength dispersive spectroscopy
3 引用 (Scopus)

Effect of Y-Ba-Cu-O-M (M = Zr, Sn and Ce) addition on the superconducting properties of melt-textured Y123 bulk

Nariki, S., Mogi, A., Tanaka, H., Sakai, N., Murakami, M., Hirabayashi, I. & Takizawa, T., 2005 10 1, : : Physica C: Superconductivity and its Applications. 426-431, I, p. 537-542 6 p.

研究成果: Article

Powders
Superconducting materials
Microstructure
critical current
inclusions

Electrical contact characteristics of mechanically mated Y-Ba-Cu-O bulks with deposited metal layer

Imaizumi, T., Sawa, K., Tomita, M., Murakami, M., Sakai, N. & Hirabayashi, I., 2005 10 1, : : Physica C: Superconductivity and its Applications. 426-431, I, p. 815-820 6 p.

研究成果: Article

electric contacts
Indium
Metals
Contact resistance
contact resistance

Evaluation of magnetic homogeneities of Gd-Ba-Cu-O bulk superconductors by different Hall probe scanning methods

Kono, T., Fukai, H., Sakai, N., Nariki, S., Hirabayashi, I., Murakami, M. & Koshizuka, N., 2005 10 1, : : Physica C: Superconductivity and its Applications. 426-431, I, p. 632-638 7 p.

研究成果: Article

Superconducting materials
homogeneity
Scanning
scanning
evaluation
16 引用 (Scopus)

Experiment for growing large Gd-Ba-Cu-O-Ag bulk superconductor

Sakai, N., Inoue, K., Nariki, S., Hu, A., Murakami, M. & Hirabayashi, I., 2005 10 1, : : Physica C: Superconductivity and its Applications. 426-431, I, p. 515-519 5 p.

研究成果: Article

Superconducting materials
Crystals
Infiltration
Experiments
infiltration
19 引用 (Scopus)

Fabrication and evaluation of superconducting magnetic bearing for 10 kW h-class flywheel energy storage system

Ichihara, T., Matsunaga, K., Kita, M., Hirabayashi, I., Isono, M., Hirose, M., Yoshii, K., Kurihara, K., Saito, O., Saito, S., Murakami, M., Takabayashi, H., Natsumeda, M. & Koshizuka, N., 2005 10 1, : : Physica C: Superconductivity and its Applications. 426-431, I, p. 752-758 7 p.

研究成果: Article

flywheels
magnetic bearings
Magnetic bearings
Flywheels
energy storage
3 引用 (Scopus)

Fabrication of Gd-Ba-Cu-O bulk superconductors with a cold seeding method

Inoue, K., Sakai, N., Murakami, M. & Hirabayashi, I., 2005 10 1, : : Physica C: Superconductivity and its Applications. 426-431, I, p. 543-549 7 p.

研究成果: Article

inoculation
Superconducting materials
Fabrication
fabrication
furnaces
15 引用 (Scopus)
Magnetic levitation
levitation
trapping
Magnetic fields
trapped magnetic fields
2 引用 (Scopus)

Flux pinning property in a single crystal NdBa2Cu 3Oy superconductor

Hasan, M. N., Kurokawa, T., Kiuchi, M., Otabe, E. S., Matsushita, T., Chikumoto, N., MacHi, T., Miryala, M. & Murakami, M., 2005 10 1, : : Physica C: Superconductivity and its Applications. 426-431, I, p. 295-299 5 p.

研究成果: Article

Flux pinning
flux pinning
Superconducting materials
Single crystals
Fluxes
4 引用 (Scopus)

Interaction of multiple iron balls in magnetic fields

Murakami, M., Nishimura, Y., Hirooka, T., Sasaki, S. & Yagi, I., 2005 4 27, : : Journal of Applied Physics. 97, 8, 083911.

研究成果: Article

balls
iron
magnetic fields
interactions
permanent magnets
5 引用 (Scopus)

Irreversible field determined by pulsed magnetization and compositional fluctuation of melt-processed (Sm, Eu, Gd)Ba2Cu3O 7-δ superconductors

Hu, A., Kono, T., Zhou, H., Iida, K., Nakao, K., Sakai, N., Koshizuka, N., Murakami, M. & Hirabayashi, I., 2005 1, : : Superconductor Science and Technology. 18, 1, p. 58-63 6 p.

研究成果: Article

Superconducting materials
Magnetization
inclusions
magnetization
heat generation
3 引用 (Scopus)
Superconducting materials
Magnetic fields
levitation
magnetic fields
Superconducting magnets
4 引用 (Scopus)

Mechanism of a high irreversibility field for (Nd, Eu,Gd)Ba 2Cu3O7 bulk

Awaji, S., Isono, N., Watanabe, K., Miryala, M., Murakami, M., Koshizuka, N. & Noto, K., 2005 6, : : IEEE Transactions on Applied Superconductivity. 15, 2 PART III, p. 3786-3789 4 p.

研究成果: Article

Transport properties
Glass
transport properties
alignment
disorders
132 引用 (Scopus)
Partial pressure
Powders
Superconducting materials
trapped magnetic fields
Magnetic fields
15 引用 (Scopus)
Superconducting materials
Oxygen
atmospheres
microstructure
Microstructure
10 引用 (Scopus)
Magnetic levitation
levitation
Oxygen
liquid oxygen
Superconducting materials
6 引用 (Scopus)

Nanostripes in SmBa2Cu3O7-δ single crystals: Origin and peak effect

Hu, A., Yao, X., Winter, M., Zhou, H., Sakai, N., Koblischka, M. R., Murakami, M. & Hirabayashi, I., 2005 10 1, : : Physica C: Superconductivity and its Applications. 426-431, I, p. 441-445 5 p.

研究成果: Article

Single crystals
flux pinning
single crystals
pulling
crystal surfaces
3 引用 (Scopus)

Near net shape processing of RE-Ba-Cu-O bulk superconductor by machining binder-added precursors

Fujikura, M., Nariki, S., Sakai, N., Hirabayashi, I. & Murakami, M., 2005 10 1, : : Physica C: Superconductivity and its Applications. 426-431, I, p. 527-531 5 p.

研究成果: Article

machining
Superconducting materials
Binders
Machining
pellets
7 引用 (Scopus)
Powders
Superconducting materials
trapped magnetic fields
inclusions
Processing
8 引用 (Scopus)

Spatial inhomogeneities of Gd-Ba-Cu-O bulk superconductors evaluated by different Hall probe scanning methods

Kono, T., Sakai, N., Nariki, S., Hirabayashi, I., Murakami, M. & Koshizuka, N., 2005 6, : : IEEE Transactions on Applied Superconductivity. 15, 2 PART III, p. 3640-3643 4 p.

研究成果: Article

Superconducting materials
inhomogeneity
Scanning
cooling
scanning
2 引用 (Scopus)
liquid oxygen
levitation
Pumps
pumps
Oxygen
1 引用 (Scopus)
Computational methods
Data mining
environmental factors
Remote sensing
Skin
3 引用 (Scopus)

Tensile testing method for rare earth based bulk superconductors at liquid nitrogen temperature

Kasaba, K., Katagiri, K., Murakami, A., Sato, G., Sato, T., Murakami, M., Sakai, N., Teshima, H. & Sawamura, M., 2005 10 1, : : Physica C: Superconductivity and its Applications. 426-431, I, p. 639-643 5 p.

研究成果: Article

Tensile testing
Liquid nitrogen
liquid nitrogen
Rare earths
Superconducting materials
6 引用 (Scopus)
Superconducting materials
Cooling
cooling
microcracks
Microcracks
5 引用 (Scopus)
Flux pinning
flux pinning
Nanoparticles
nanoparticles
magnetoresistivity
3 引用 (Scopus)

Three-dimensional field measurements of levitated HTS and the modeling of the shielding current

Ito, E., Komano, Y., Sawa, K., Iwasa, Y., Sakai, N., Hirabayashi, I. & Murakami, M., 2005 10 1, : : Physica C: Superconductivity and its Applications. 426-431, I, p. 731-738 8 p.

研究成果: Article

Shielding
shielding
current distribution
Superconducting materials
YBCO superconductors
2 引用 (Scopus)
Undercooling
supercooling
solidification
Solidification
Nucleation
2004
130 引用 (Scopus)

Applications of bulk high-temperature superconductors

Hull, J. R. & Murakami, M., 2004 10, : : Proceedings of the IEEE. 92, 10, p. 1705-1717 13 p.

研究成果: Article

High temperature superconductors
Fault current limiters
Hysteresis motors
Flux pinning
Magnetic separation
14 引用 (Scopus)

Bose glass state in bulk (Nd,Eu,Gd)Ba2Cu3O x with a high irreversibility field

Awaji, S., Isono, N., Watanabe, K., Murakami, M., Miryala, M., Koshizuka, N. & Noto, K., 2004 6, : : Physical Review B - Condensed Matter and Materials Physics. 69, 21, 214522.

研究成果: Article

Glass
glass
Transport properties
glass transition temperature
transport properties
13 引用 (Scopus)

Construction of the stator installed in the superconducting magnetic bearing for a 10 kWh flywheel

Koshizuka, N., Matsunaga, K., Yamachi, N., Kawaji, A., Hirabayashi, H., Murakami, M., Tomita, M., Une, S., Saito, S., Isono, M., Nasu, H., Maeda, T. & Ishikawa, F., 2004 10, : : Physica C: Superconductivity and its Applications. 412-414, SPEC. ISS., p. 756-760 5 p.

研究成果: Article

flywheels
magnetic bearings
Magnetic bearings
Flywheels
levitation
5 引用 (Scopus)

Contact characteristics for bulk superconductors

Yamamoto, N., Imaizumi, T., Sawa, K., Tomita, M., Murakami, M. & Hirabayashi, I., 2004 10, : : Physica C: Superconductivity and its Applications. 412-414, SPEC. ISS., p. 662-667 6 p.

研究成果: Article

Contact resistance
Superconducting materials
contact resistance
Energy storage
Resins
8 引用 (Scopus)

Copper sheath MgB2 wires fabricated by an in situ PIT method

Shimura, S., Machi, T., Murakami, M., Koshizuka, N., Mochizuki, K., Ishikawa, I. & Shibata, N., 2004 10, : : Physica C: Superconductivity and its Applications. 412-414, SPEC. ISS., p. 1179-1183 5 p.

研究成果: Article

sheaths
Powders
Copper
wire
Wire

Critical current density and trapped field properties of Ho-Ba-Cu-O bulk superconductors

Tanaka, H., Nariki, S., Sakai, N., Murakami, M., Hirabayashi, I. & Takizawa, T., 2004 9, : : Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals. 68, 9, p. 693-697 5 p.

研究成果: Article

Powders
Superconducting materials
critical current
current density
Particle size
6 引用 (Scopus)

Deformation and fracture behavior of Sm123 bulk superconductors by compressive loading at room temperature

Kan, R., Katagiri, K., Murakami, A., Kasaba, K., Shoji, Y., Noto, K., Sakai, N. & Murakami, M., 2004 6, : : IEEE Transactions on Applied Superconductivity. 14, 2, p. 1114-1117 4 p.

研究成果: Article

Superconducting materials
Elastic moduli
Fracture toughness
room temperature
modulus of elasticity
43 引用 (Scopus)

Direct observation and analysis of nanoscale precipitates in (Sm,Eu,Gd)Ba2Cu3Oy

Miryala, M., Sakai, N., Jirsa, M., Koshizuka, N. & Murakami, M., 2004 10 18, : : Applied Physics Letters. 85, 16, p. 3504-3506 3 p.

研究成果: Article

precipitates
superconducting magnets
horizon
critical current
chemical composition
18 引用 (Scopus)
Coarsening
Partial pressure
Superconducting materials
Substitution reactions
Experiments
11 引用 (Scopus)
Flux pinning
flux pinning
composite materials
Composite materials
low concentrations
26 引用 (Scopus)
Superconducting materials
Strength of materials
Cracks
microstructure
Microstructure
6 引用 (Scopus)
Electric variables measurement
Critical currents
Magnetic variables measurement
Backscattering
Superconducting materials
5 引用 (Scopus)
floating
critical current
Single crystals
current density
Crystals