Search Results - "Iwakuma, M"

Development of a Superconducting Cable for Aircraft Electric Propulsion System by Shiohara, K., Sato, M., Takahashi, Y., Adachi, K., Izumi, T., Iwakuma, M.

“…Superconducting coated conductors made of REBCO-REBa 2 Cu 3 O 7-δ , where RE is a rare earth element (Y, Gd, Sm, Nd, Eu, etc.), potentially improve the…”
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J c and Composition Distribution of YBCO Coated Conductors Fabricated by the TFA-MOD Process by Sakai, S., Tanaka, Y., Teranishi, R., Iwakuma, M., Inoue, M.

“…The Trifluoroacetate-Metal Organic Deposition (TFA-MOD) process is one of the most promising fabrication processes for low-cost superconducting coated…”
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Jc and Composition Distribution of YBCO Coated Conductors Fabricated by the TFA-MOD Process by Sakai, S., Tanaka, Y., Teranishi, R., Iwakuma, M., Inoue, M.

“…The Trifluoroacetate-Metal Organic Deposition (TFA-MOD) process is one of the most promising fabrication processes for low-cost superconducting coated…”
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Development of Ba-Zr-O-Doped Y-Gd-Ba-Cu-O Coated Conductors Using a Reel-to-Reel System Furnace by Sato, M., Shiohara, K., Takahashi, Y., Aoki, Y., Nakaoka, K., Adachi, K., Izumi, T., Iwakuma, M.

“…We designed and developed a novel reel-to-reel system furnace for fabricating high-performance superconducting tapes. Using the new furnace, long-length BaZrO…”
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Fabrication and Test of a 400 kW-Class Fully Superconducting Synchronous Motor Using REBCO Tape for an Electric Propulsion System by Miyazaki, H., Iwakuma, M., Emori, Y., Sasa, H., Yoshida, K., Sato, S., Miura, S., Sagara, I., Suzuki, Y., Konno, M., Hirai, H., Izumi, T.

“…Advanced electric propulsion systems have been developed by utilizing superconducting technologies to reduce carbon dioxide emissions from aircraft. This study…”
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Design Study of 15-MW Fully Superconducting Generators for Offshore Wind Turbine by Saruwatari, M., Yun, K., Iwakuma, M., Tamura, K., Hase, Y., Sasamori, Y., Izumi, T.

“…The design study of 15-MW offshore wind turbine generators was carried out with RE 1 Ba 2 Cu 3 O 7-δ (RE denotes rare earth; RE = Y , Gd, Eu, henceforth REBCO)…”
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Characterization and Performance Improvement of Face-to-Face Double Stack REBCO Coated Conductors by Nakamura, M., Veshchunov, I. S., Gaifullin, M., Dao, H. T., Hasuo, S., Ibi, A., Machi, T., Izumi, T., Iwakuma, M., Petrykin, V., Lee, S.

“…In order to improve the mechanical and electromagnetic robustness of REBCO coated conductors (CCs) for their application in superconducting equipment, we have…”
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Current Sharing Properties of Superconducting Parallel Conductors in Rectifier Transformers for Railway Electrification System by Fukumoto, Y., Tomita, M., Iwakuma, M.

“…In Japan, superconducting cables for the direct current railway electrification systems have been progressively developed. When superconducting cables are used…”
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Study on the Optimum Arrangement of the Field Winding for a 20-kW Fully Superconducting Motor by Tamura, K., Iwakuma, M., Ueno, T., Yun, K., Sato, S., Yoshida, K., Tomioka, A., Konno, M., Izumi, T.

“…The development of fully superconducting motors using Re 1 Ba 2 Cu 3 O 7-δ (REBCO, Re: rare earth such as Y, Gd, or Eu) superconducting tapes has begun with…”
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Decay of Shielding Current in Stacked REBCO Superconducting Tapes by Iwakuma, M., Ueno, T., Yun, K., Sato, S., Yoshida, K., Tomioka, A., Izumi, T., Machi, T., Ibi, A., Adachi, K.

“…We are developing superconducting magnets for MRI with RE 1 Ba 2 Cu 3 O 7-δ (Re: rare earth, Y, Gd, Eu, REBCO) tapes. Superconducting magnets for MRI need the…”
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New Method for Quick Decay of Shielding Current in REBCO Superconducting Coils by Iwakuma, M., Tsukigi, Y., Nabekura, K., Ueno, T., Shindo, R., Kawahara, F., Honda, S., Tamura, K., Yun, K., Sato, S., Yoshida, K., Tomioka, A., Konno, M., Izumi, T., Machi, T., Ibi, A.

“…We are developing superconducting magnets for MRI with Re 1 Ba 2 Cu 3 O 7-δ (Re: Rare Earth, Y, Gd, Eu, REBCO) superconducting tapes. We intend to operate them…”
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Characterization of Multifilamentary REBCO Coated Conductor Coil Fabricated by Using the Process of Scratching the IBAD-MgO Layer by Fujita, S., Muto, S., Kurihara, C., Sato, H., Hirata, W., Nakamura, N., Igarashi, M., Hanyu, S., Daibo, M., Iijima, Y., Naoe, K., Iwakuma, M., Kiss, T.

“…REBa2Cu3Ox (REBCO, RE = rare earth) coated conductors (CCs) are expected to show high performance for superconducting coil applications due to their high…”
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Development of REBCO superconducting power transformers in Japan by Iwakuma, M., Hayashi, H., Okamoto, H., Tomioka, A., Konno, M., Saito, T., Iijima, Y., Suzuki, Y., Yoshida, S., Yamada, Y., Izumi, T., Shiohara, Y.

“…In Japan we started a national project to develop a 66/6.9 kV–20 MVA transformer with REBCO superconducting tapes in 2006. This paper gives an overview of…”
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Relaxation of Shielding Current in Test Coils for MRI With REBCO Superconducting Scribed Tapes by Iwakuma, M., Tsukigi, Y., Nabekura, K., Ueno, T., Shindo, R., Kawahara, F., Honda, S., Tamura, K., Yun, K., Sato, S., Yoshida, K., Tomioka, A., Konno, M., Izumi, T., Machi, T., Ibi, A.

“…Superconducting magnets for MRI need uniformity of produced magnetic field within ppm order in time and space. To develop the superconducting magnets for MRI…”
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Development of a turbine cryocooler for high temperature superconductor applications by Hirai, H., Suzuki, Y., Hirokawa, M., Kobayashi, H., Kamioka, Y., Iwakuma, M., Shiohara, Y.

“…For high temperature superconductor (HTS) applications such as a power cable, a motor, and a transformer, a refrigerator enough to cool them below liquid…”
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Development of REBCO Superconducting Transformers With a Current Limiting Function by Iwakuma, M., Katanosaka, Y., Sato, S., Hayashi, H., Okamoto, H., Gosho, Y., Tomioka, A., Konno, M., Iijima, Y., Saitoh, T., Ohkuma, T., Tagomori, A., Izumi, T., Shiohara, Y.

“…We designed and fabricated a 10 kVA single-phase transformer with RE 1 Ba 2 Cu 3 O 7-δ (REBCO, RE:Rare Earth, Y, Gd, etc.) superconducting tapes. It had a…”
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Production and Test of a REBCO Superconducting Synchronous Motor by Iwakuma, M., Hase, Y., Satou, T., Tomioka, A., Konno, M., Iijima, Y., Saitoh, T., Yamada, Y., Izumi, T., Shiohara, Y.

“…We designed and fabricated a 7.5 kW-360 rpm synchronous motor with a superconducting rotor. The rotor was 6-pole type and has no iron core. The armature…”
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Over-current characteristics of model coil using Y-based multi-filament wire for superconducting power transformers by Okamoto, H., Hayashi, H., Iwakuma, M., Tomioka, A., Saito, T., Gosho, Y., Tanabe, K., Shiohara, Y.

“…In the Japanese national project to develop superconducting power applications using Y-based coated conductors, the present focus is on various aspects of…”
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Development of scribing process of coated conductors for reduction of AC losses by Suzuki, K., Yoshizumi, M., Izumi, T., Shiohara, Y., Iwakuma, M., Ibi, A., Miyata, S., Yamada, Y.

“…Coated conductors (CCs) are prospective for electric power applications intended for not only better cost performance but also high critical current density (…”
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Effects of a ferromagnetic substrate on hysteresis losses of a YBa2Cu3O7 coated conductor in perpendicular ac applied magnetic fields by SUENAG, M, IWAKUMA, M, SUEYOSHI, T, IZUMI, T, MIMURA, M, TAKAHASHI, Y, AOKI, Y

“…The effects of a ferromagnetic substrate on ac losses of a YBa2Cu3O7, YBCO, coated conductor in perpendicular ac magnetic fields were investigated by measuring…”
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