Browsing JURNAL by Author "TOMOKIYO, YOSHITSUGU"
Now showing items 1-4 of 4
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EFFECTS OF HEAT TREATMENTS ON MICROSTRUCTURE FORMATION IN MGB 2 /YSZ/HASTELLOY FILM
HATA, SATOSHI; SOSIATI, HARINI; KUWANO, NORIYUKI; TOMOKIYO, YOSHITSUGU; MATSUMOTO, AKIYOSHI; FUKUTOMI, MASAO; KITAGUCHI, HITOSHI; KOMORI, KAZUNORI; KUMAKURA, HIROAKI (2005-06)Annealing processes in MgB2 films deposited on yttria-stabilized zirconia (YSZ)-buffered Hastelloy substrates were studied by transmission electron microscopy. The MgB2 films with Mg-rich compositions were fabricated at room ... -
ELECTRON MICROSCOPY OF MGB2 THIN FILM ON YSZ-BUFFERED HASTELLOY
SOSIATI, HARINI; HATA, SATOSHI; KUWANO, NORIYUKI; TOMOKIYO, YOSHITSUGU; MATSUMOTO, AKIYOSHI; FUKUTOMI, MASAO; KITAGUCHI, HITOSHI; KOMORI, KAZUNORI; KUMAKURA, HIROAKI (Elsevier, 2004-06-11)In order to understand the relationship between the microstructures and superconducting properties of MgB2 films, analytical TEM observations have been carried out. The films were fabricated by a KrF excimer laser deposition ... -
MICROSTRUCTURES OF MGB2 /FE TAPES FABRICATED BY AN IN SITU POWDER-IN-TUBE METHOD USING MGH2 AS A PRECURSOR POWDER
HATA, SATOSHI; YOSHIDOME, TAKESHI; SOSIATI, HARINI; TOMOKIYO, YOSHITSUGU; KUWANO, NORIYUKI; MATSUMOTO, AKIYOSHI (IOP, 2006-01-04)Microstructures of MgB2/Fe tapes fabricated by an in situ powder-in-tube method using MgH2 as a precursor powder have been studied by means of x-ray diffraction and analytical transmission electron microscopy combined with ... -
RELATIONSHIP BETWEEN MICROSTRUCTURE AND JC PROPERTY IN MGB2/Α-AL2O3 FILM FABRICATED BY IN SITU ELECTRON BEAM EVAPORATION
SOSIATI, HARINI; HATA, SATOSHI; KUWANO, NORIYUKI; TOMOKIYO, YOSHITSUGU; KITAGUCHI, HITOSHI; DOI, TOSHIYA; YAMAMOTO, HAJIME; MATSUMOTO, AKIYOSHI; SAITOH, KEISUKE; KUMAKURA, HIROAKI (IOP, 2005-08-09)A transmission electron microscopy (TEM) study has been carried out on an MgB2/α-Al2O3 film that exhibits the typical property of critical current density (Jc) under magnetic fields. The MgB2 layer of 300 nm in thickness ...