材料工学科

研究成果 1983 2019

フィルター
Article
2004
5 引用 (Scopus)
floating
critical current
Single crystals
current density
Crystals
2 引用 (Scopus)

Field trapping and shielding measurements within a cylindrical hole in a block of Sm-Ba-Cu-O bulk superconductor

Masuzawa, M., Egawa, K., Murakami, M., Nakayama, H., Tsuchiya, K. & Yamaguchi, K., 2004 6, : : IEEE Transactions on Applied Superconductivity. 14, 2, p. 1267-1270 4 p.

研究成果: Article

Shielding
Superconducting materials
shielding
trapping
Magnetic fields

Flux motion in Y-Ba-Cu-O bulk superconductors during pulse field magnetization

Yoshizawa, K., Nariki, S., Sakai, N., Murakami, M., Hirabayasi, I. & Takizawa, T., 2004 2, : : Superconductor Science and Technology. 17, 2

研究成果: Article

Superconducting materials
Magnetization
Fluxes
magnetization
pulses
7 引用 (Scopus)

Fracture toughness of Sm123 bulk superconductors evaluated by tensile and bending tests

Katagiri, K., Murakami, A., Okudera, T., Yoshino, Y., Iwabuchi, A., Noto, K., Sakai, N. & Murakami, M., 2004 6, : : IEEE Transactions on Applied Superconductivity. 14, 2, p. 1046-1049 4 p.

研究成果: Article

Bending tests
tensile tests
fracture strength
Superconducting materials
Fracture toughness
6 引用 (Scopus)

Fracture toughness of SmBaCuO bulk superconductors at cryogenic temperatures

Yoshino, Y., Iwabuchi, A., Takahashi, N., Katagiri, K., Noto, K., Sakai, N. & Murakami, M., 2004 6, : : IEEE Transactions on Applied Superconductivity. 14, 2, p. 1118-1121 4 p.

研究成果: Article

cryogenic temperature
fracture strength
Cryogenics
Superconducting materials
Fracture toughness
56 引用 (Scopus)
Powders
Superconducting materials
critical current
current density
trapped particles
64 引用 (Scopus)
Powders
Superconducting materials
critical current
current density
trapped magnetic fields
7 引用 (Scopus)

High magnetic field transport properties of (Nd, Eu, Gd)Ba2Cu3Ox bulk

Awaji, S., Isono, N., Watanabe, K., Miryala, M., Murakami, M., Koshizuka, N. & Noto, K., 2004 2, : : Superconductor Science and Technology. 17, 2

研究成果: Article

Transport properties
Vortex flow
transport properties
disorders
Magnetic fields
6 引用 (Scopus)
liquid oxygen
Superconducting magnets
superconducting magnets
Industrial applications
Oxygen
11 引用 (Scopus)

Joining of different Y-Ba-Cu-O blocks

Iida, K., Kono, T., Kaneko, T., Katagiri, K., Sakai, N., Murakami, M. & Koshizuka, N., 2004 2 1, : : Physica C: Superconductivity and its Applications. 402, 1-2, p. 119-126 8 p.

研究成果: Article

solders
Joining
Soldering alloys
Ball milling
Solid state reactions
8 引用 (Scopus)

Joining of Y-Ba-Cu-O/Ag bulk superconductors using Er-Ba-Cu-O/Ag solder

Iida, K., Kono, T., Kaneko, T., Katagiri, K., Sakai, N., Murakami, M. & Koshizuka, N., 2004 2, : : Superconductor Science and Technology. 17, 2

研究成果: Article

solders
Joining
Soldering alloys
Superconducting materials
Chemical analysis
13 引用 (Scopus)

Low temperature mechanical properties of Y123 bulk superconductor fabricated by the modified QMG process

Murakami, A., Katagiri, K., Kasaba, K., Noto, K., Teshima, H., Sawamura, M., Sakai, N. & Murakami, M., 2004 10, : : Physica C: Superconductivity and its Applications. 412-414, SPEC. ISS., p. 673-677 5 p.

研究成果: Article

flexural strength
liquid nitrogen
Superconducting materials
mechanical properties
Mechanical properties

Magnetic flux distribution of Sm-Ba-Cu-O bulk superconductor

Inoue, K., Hirabayashi, I. & Murakami, M., 2004 10, : : Physica C: Superconductivity and its Applications. 412-414, SPEC. ISS., p. 521-525 5 p.

研究成果: Article

Magnetic flux
Superconducting materials
magnetic flux
SQUIDs
time dependence
7 引用 (Scopus)

Magnetic levitation in liquid oxygen and its applications

Miryala, M., Sakai, N., Jirsa, M., Murakami, M. & Koshizuka, N., 2004 10, : : Physica C: Superconductivity and its Applications. 412-414, SPEC. ISS., p. 739-743 5 p.

研究成果: Article

Magnetic levitation
liquid oxygen
Oxygenation
Energy dispersive X ray analysis
levitation
Magnetization
Magnetic fields
magnetization
temperature dependence
heat generation
53 引用 (Scopus)

Magnetization properties for Gd-Ba-Cu-O bulk superconductors with a couple of pulsed-field vortex-type coils

Ida, T., Matsuzaki, H., Akita, Y., Izumi, M., Sugimoto, H., Hondou, Y., Kimura, Y., Sakai, N., Nariki, S., Hirabayashi, I., Miki, M., Murakami, M. & Kitano, M., 2004 10, : : Physica C: Superconductivity and its Applications. 412-414, SPEC. ISS., p. 638-645 8 p.

研究成果: Article

Superconducting materials
High temperature superconductors
Magnetization
Vortex flow
Liquid nitrogen
14 引用 (Scopus)

Mechanical properties of Gd123 bulk superconductor at liquid nitrogen temperature

Murakami, A., Katagiri, K., Kasaba, K., Shoji, Y., Noto, K., Teshima, H., Sawamura, M. & Murakami, M., 2004 6, : : IEEE Transactions on Applied Superconductivity. 14, 2, p. 1050-1053 4 p.

研究成果: Article

Liquid nitrogen
liquid nitrogen
Superconducting materials
mechanical properties
Mechanical properties
2 引用 (Scopus)

Mechanical properties of Y-Ba-Cu-O blocks welded by silver added Y-Ba-Cu-O solder

Kaneko, T., Iida, K., Kono, T., Sakai, N., Murakami, M., Koshizuka, N., Murakami, A. & Katagiri, K., 2004 10, : : Physica C: Superconductivity and its Applications. 412-414, SPEC. ISS., p. 678-682 5 p.

研究成果: Article

solders
Silver
Soldering alloys
liquid phases
silver
1 引用 (Scopus)

MO observation of flux penetration into high-Tc superconductors with grain boundaries

Chikumoto, N., Furusawa, K., Murakami, M. & Tajima, S., 2004 10, : : Physica C: Superconductivity and its Applications. 412-414, SPEC. ISS., p. 1005-1010 6 p.

研究成果: Article

Superconducting materials
critical current
Grain boundaries
penetration
grain boundaries
6 引用 (Scopus)

Nanometre-sized inhomogeneity in high-Jc Bi2Sr 2CaCu2O8+δ superconductors

Nishiyama, M., Kinoda, G., Zhao, Y., Hasegawa, T., Itoh, Y., Koshizuka, N. & Murakami, M., 2004 12, : : Superconductor Science and Technology. 17, 12, p. 1406-1410 5 p.

研究成果: Article

Superconducting materials
inhomogeneity
Energy gap
Modulation
Critical current density (superconductivity)
5 引用 (Scopus)

Numerical simulation of a bulk superconductor during pulsed field magnetization

Fukai, H., Sakai, N., Murakami, M. & Hirabayashi, I., 2004 10, : : Physica C: Superconductivity and its Applications. 412-414, SPEC. ISS., p. 695-698 4 p.

研究成果: Article

Superconducting materials
Magnetization
magnetization
Computer simulation
simulation
9 引用 (Scopus)

Numerical simulation of levitation force and magnetic field in levitated bulk superconductor

Komano, Y., Sawa, K., Iwasa, Y., Yamachi, N., Murakami, M. & Hirabayashi, I., 2004 10, : : Physica C: Superconductivity and its Applications. 412-414, SPEC. ISS., p. 729-733 5 p.

研究成果: Article

levitation
Shielding
field theory (physics)
Superconducting materials
shielding
2 引用 (Scopus)
liquid oxygen
Oxygen
Flux pinning
optimization
levitation
3 引用 (Scopus)
Superconducting materials
Magnetic moments
Phase diagrams
Transmission electron microscopy
Temperature
10 引用 (Scopus)
liquid oxygen
flux pinning
superconducting magnets
permanent magnets
Oxygen

Processing of high-performance (Sm,Eu,Gd)Ba2Cu3O 7-δ bulk superconductors with BaO2 addition

Hu, A., Sakai, N., Zhou, H., Murakami, M. & Hirabayashi, I., 2004 10, : : Physica C: Superconductivity and its Applications. 412-414, SPEC. ISS., p. 571-574 4 p.

研究成果: Article

Coarsening
Partial pressure
Superconducting materials
Substitution reactions
Processing
7 引用 (Scopus)

Simulation of current and temperature distribution in YBCO bulk's electrical contact

Imaizumi, T., Yamamoto, N., Sawa, K., Tomita, M., Murakami, M. & Hirabayashi, I., 2004 10, : : Physica C: Superconductivity and its Applications. 412-414, SPEC. ISS., p. 668-672 5 p.

研究成果: Article

Contact resistance
current distribution
contact resistance
electric contacts
Temperature distribution
5 引用 (Scopus)

Synthesis and characterisation of RuSr2NdxGd 1-xCu2O8 compounds (x = 0, 0.03, 0.06 and 0.12)

Mele, P., Artini, C., Masini, R., Costa, G. A., Hu, A., Chikumoto, N. & Murakami, M., 2004 10, : : Physica C: Superconductivity and its Applications. 412-414, SPEC. ISS., p. 196-200 5 p.

研究成果: Article

Doping (additives)
Magnetoresistance
synthesis
Coprecipitation
Oxides
18 引用 (Scopus)

Tensile and bending mechanical properties of bulk superconductors at room temperature

Katagiri, K., Murakami, A., Shoji, Y., Teshima, H., Sawamura, M., Iwamoto, A., Mito, T. & Murakami, M., 2004 10, : : Physica C: Superconductivity and its Applications. 412-414, SPEC. ISS., p. 633-637 5 p.

研究成果: Article

flexural strength
Bending strength
tensile strength
Superconducting materials
Tensile strength
6 引用 (Scopus)
Flux pinning
flux pinning
Magnetization
crossovers
Single crystals
2003
28 引用 (Scopus)
liquid oxygen
levitation
Particle size
Oxygen
Ball milling
3 引用 (Scopus)

Pulsed field magnetization of large-grain Gd-Ba-Cu-O bulk superconductor

Fukai, H., Yamada, H., Sakai, N. & Murakami, M., 2003 10, : : Physica C: Superconductivity and its Applications. 392-396, PART 1, p. 585-588 4 p.

研究成果: Article

Superconducting materials
Magnetization
magnetization
pulses
Temperature
44 引用 (Scopus)

Vortex pinning by mesoscopic defects: A way to levitation at liquid oxygen temperature

Miryala, M., Sakai, N., Jirsa, M., Koshizuka, N. & Murakami, M., 2003 12 15, : : Applied Physics Letters. 83, 24, p. 5005-5007 3 p.

研究成果: Article

liquid oxygen
levitation
balls
vortices
transmission electron microscopy
2001
14 引用 (Scopus)

Cold seeded melt growth of RE-Ba-Cu-O superconductor (RE = Gd, Y)

Hinai, H., Nariki, S., Ogasawara, K., Sakai, N., Murakami, M. & Otsuka, M., 2001 8, : : Physica C: Superconductivity and its Applications. 357-360, SUPPL. 2, p. 706-708 3 p.

研究成果: Article

Superconducting materials
seeds
Crystals
Temperature
crystals

High-temperature in situ observation of Nd-Sm-Ba-Cu-O system by laser-scanning microscopy

Banzai, S., Sakai, N., Takazawa, N., Yoshizawa, S., Osabe, G., Otsuka, M. & Murakami, M., 2001 8, : : Physica C: Superconductivity and its Applications. 357-360, SUPPL. 2, p. 702-705 4 p.

研究成果: Article

Rare earths
Microscopic examination
rare earth elements
microscopy
Scanning
20 引用 (Scopus)

Numerical simulation of trapped magnetic field for bulk superconductor

Fukai, H., Tomita, M., Murakami, M. & Nagatomo, T., 2001 8, : : Physica C: Superconductivity and its Applications. 357-360, SUPPL. 2, p. 774-776 3 p.

研究成果: Article

trapped magnetic fields
Superconducting materials
Magnetic fields
Computer simulation
Biot-Savart law
1999
57 引用 (Scopus)
solders
Soldering alloys
Strength of materials
thermal fatigue
Thermal fatigue
3 引用 (Scopus)
Undercooling
supercooling
solidification
Solidification
Cooling
1998
1 引用 (Scopus)
drop towers
supercooling
solidification
nucleation
76 引用 (Scopus)
Bismuth
fatigue life
solders
Soldering alloys
bismuth
149 引用 (Scopus)
solders
fatigue life
Soldering alloys
Fatigue of materials
ductility
1996
3 引用 (Scopus)

Molecular rearrangement by thermal degradation of poly(oxy-2,6-dimethyl-1,4-phenylene)

Takayama, S., Arai, T., Kinoshita, M. & Takeda, K., 1996, : : Kobunshi Ronbunshu. 53, 5, p. 292-293 2 p.

研究成果: Article

Pyrolysis
Ether
degradation
Ethers
Polymers
6 引用 (Scopus)

Structure and magnetic properties of metastable phase of Nd-Fe alloys obtained by quenching levitated melt

Nagayama, K., Kobayashi, S., Yamamura, T., Suzuki, T., Kuribayashi, K. & Miyama, H., 1996 4, : : Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals. 60, 4, p. 412-419 8 p.

研究成果: Article

Metastable phases
solidification
Solidification
Quenching
Magnetic properties
1995
18 引用 (Scopus)

Rearrangement of the main-chain and subsequent thermal degradation of polyphenylene-ether

Takayama, S., Mathubara, N., Arai, T. & Takeda, K., 1995, : : Polymer Degradation and Stability. 50, 3, p. 277-284 8 p.

研究成果: Article

thermal degradation
Ether
cleavage
Ethers
ethers
1986
9 引用 (Scopus)

SLUDGE DEPOSITION IN MOLTEN ALUMINUM DIE CASTING ALLOYS IN THE HOLDING FURNACE.

Osame, Y., Toyoda, K., Tsumura, Y., Suzuki, M., Furuya, S. & Nagayama, K., 1986 12, : : Keikinzoku/Journal of Japan Institute of Light Metals. 36, 12, p. 813-818 6 p.

研究成果: Article

Die casting
Aluminum
Liquid metals
Molten materials
Furnaces
1984
1 引用 (Scopus)
Ceramic fibers
Diaphragms
Aluminum
Chlorides
Cathodes
1983

DEMAGGING PROCESSES BY FLUXING FROM ALUMINUM ALLOYS.

Nagayama, K., Toyoda, K. & Tsumura, Y., 1983 5, : : Keikinzoku/Journal of Japan Institute of Light Metals. 33, 5, p. 243-248 6 p.

研究成果: Article

Aluminum alloys
Aluminum
Fluxes
Silicon Dioxide
Silica
Aluminum chloride
Aluminum Oxide
Aluminum
Powders
Alumina
2 引用 (Scopus)

STUDY ON ENERGY-SAVING DEMAGGING PROCESS WITHOUT AIR POLLUTION.

Nagayama, K., Toyoda, K. & Tsumura, Y., 1983 11, : : Keikinzoku/Journal of Japan Institute of Light Metals. 33, 11, p. 655-659 5 p.

研究成果: Article

Air pollution
Magnesium
Energy conservation
Current density
Magnesium Chloride