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Dive into the research topics where Kai Shiraishi is active.

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Featured researches published by Kai Shiraishi.


Journal of Materials Science | 1995

Effect of equiaxial microplastic deformation before final annealing on Tc of liquid-quenched Bi1.6Pb0.4Sr2Ca2Cu2.7Ti0.3Ox crystallized

Y. Nishi; Tetsuo Aida; Kazuo Nozaki; Kai Shiraishi; Kazuya Oguri

The influence of the treatment (equiaxial microplastic deformation and final annealing) on the Tc0value is studied for the liquid-quenched Bi1.6Pb0.4Sr2Ca2Cu2.7Ti0.3Ox which is crystallized. The treatment increases the Tc0value. Based on results of X-ray diffraction and electrical resistivity, the Tc0change is discussed.


Superconductors, Surfaces and Superlattices#R##N#Proceedings of the Symposia CC: Superlattice DD: Surfaces and Interfaces HH: Superconducting Materials of the 3rd IUMRS International Conference on Advanced Materials, Sunshine City, Ikebukuro, Tokyo, Japan, August 31–September 4, 1993 | 1994

IMPROVEMENT OF BRITTLENESS BY Ti ADDITION FOR HIGH Tc Bi OXIDE

Kazuo Nozaki; Kai Shiraishi; S. Uchida; Mamoru Shimabara; Y. Nishi

When Ti atoms are substituted for Cu atoms in the high Tc phase, the Ti addition improves ductility without the Tc decreasing. Based on results of lattice constants, the influences of the Ti substitution on ductility are discussed.


Superconductors, Surfaces and Superlattices#R##N#Proceedings of the Symposia CC: Superlattice DD: Surfaces and Interfaces HH: Superconducting Materials of the 3rd IUMRS International Conference on Advanced Materials, Sunshine City, Ikebukuro, Tokyo, Japan, August 31–September 4, 1993 | 1994

EFFECTS OF COLD-WORKING ON Tc FOR Ti ADDED AND LIQUID- QUENCHED Bi OXIDE

Tetsuo Aida; Kai Shiraishi; Y. Nishi

Influence of the cold-working before annealing on the Tc value is studied for the liquid- quenched Bi1.6Pb0.4Sr2Ca2Cu2.7Ti0.3Ox which is crystallized. The cold-working before the annealing increases the Tc value. Based on results of the x-ray diffraction, the Tc mid value change is discussed.


Superconductors, Surfaces and Superlattices#R##N#Proceedings of the Symposia CC: Superlattice DD: Surfaces and Interfaces HH: Superconducting Materials of the 3rd IUMRS International Conference on Advanced Materials, Sunshine City, Ikebukuro, Tokyo, Japan, August 31–September 4, 1993 | 1994

EFFECT OF TITANIUM SUBSTITUTION ON DUCTILITY FOR LIQUID- QUENCHED Bi-Pb-Sr-Ca-Cu-O GLASS

Satoshi Uchida; Mamoru Shimabara; Kouichi Kannaka; Kai Shiraishi; Tetsuo Aida; Kazuo Nozaki; Yoshitake Nishi

Effects of Ti substitutions for the Bi, Pb, Sr, Ca and Cu atoms on ductility are found for the liquid- quenched Bi oxide glasses. The Ti additions increases ductility. When the Ti atoms substitute for the Sr atoms, the Ti addition strongly enhances the ductility.


Journal of Advanced Science | 1995

Change in ductility by randomization of Fe-W glassy films

Mamoru Shimabara; Satoshi Uchida; Yasutaka Mogi; Kai Shiraishi; Kazuya Oguri; Tohru Watanabe; Yoshitake Nishi


Journal of Advanced Science | 1995

Influence of Li addition on Tc of Bi base superconductor

Takashi Kitamura; Yuji Ohmori; Kei Fukushima; Kai Shiraishi; Mamoru Shimabara; Kazuya Oguri; Yoshitake Nishi


Journal of Advanced Science | 1995

INFLUENCE OF V ADDITION ON Tc OF Bi BASE SUPERCONDUCTOR

Nobuhiro Iwataka; Yuji Ohmori; Kei Fukushima; Kai Shiraishi; Mamoru Shimabara; Kazuya Oguri; Yoshitake Nishi


Journal of Advanced Science | 1994

EFFECT of W ADDITIONS ON Tc of Bi BASE SUPERCONDUCTOR

Takashi Uemura; Yuji Ohmori; Kei Fukushima; Kai Shiraishi; Mamoru Shimabara; Kazuya Oguri; Yoshitake Nishi


Journal of Advanced Science | 1993

Influence of Hf addition on Tc for Bi-base superconductor

Kai Shiraishi; Shigemi Watanabe; Takashi Ohwaki; Kazuya Oguri; Kazuo Nozaki; Yoshitake Nishi


Journal of Advanced Science | 1993

Change in Jc by Thermomechanical Treatment for Liquid-quenched Bi-Pb-Sr-Ca-Cu-Ti-O

Tetsuo Aida; Kai Shiraishi; Yuichi Kawaguchi; Yoshitake Nishi

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