Motion Control of Adaptive Space Structures Based on Artificial Potential Method

1998 ◽  
Vol 35 (4) ◽  
pp. 496-501 ◽  
Author(s):  
Yuji Matsuzaki ◽  
Akira Ichiyanagi ◽  
Tomihiko Yoshida
Keyword(s):  
Motion Control ◽  
Potential Method ◽  
Space Structures

Positioning and motion control for soft docking of adaptive space structure based on artificial potential method

1997 ◽  
Author(s):  
Yuji Matsuzaki ◽  
Akira Ichiyanagi ◽  
Tomihiko Yoshida ◽  
Yuji Matsuzaki ◽  
Akira Ichiyanagi ◽  
...  
Keyword(s):  
Motion Control ◽  
Potential Method ◽  
Space Structure ◽  
Soft Docking

Motion control of adaptive space structures based on artificial Lagrange energy method

2000 ◽  
Author(s):  
Yuji Matsuzaki ◽  
Tadashige Ikeda ◽  
Nobuhiro Kawamoto
Keyword(s):  
Motion Control ◽  
Energy Method ◽  
Space Structures

Modulated structures in (Bi,Pb)-Sr-Ca-Cu-O films

1990 ◽  
Vol 48 (4) ◽  
pp. 62-63
Author(s):  
Shozo Ikeda ◽  
Hirotoshi Hayakawa ◽  
Daniel R. Dietderich
Keyword(s):  
Rf Magnetron Sputtering ◽  
Potential Method ◽  
High Tc ◽  
Bscco System ◽  
Heat Treated ◽  
Modulated Structures ◽  
High Tc Phase ◽  
Deposited Films ◽  
Sputtering System

Pb addition makes easier to form the high Tc phase in the BSCCO system. However, Pb easily vaporized at high temperature. A controlled Pb potential method has been applied to grow the high Tc phase in films. Initially, films are deposited on cleaved MgO substrates using an rf magnetron sputtering system. These amorphous as-deposited films are heat treated in a sealed gold capsule along with a large pellet of Pb-added BSCCO. Details of the process and characterization of the films have been reported elsewhere (1). Films trated for 0.5h at 850° C contain mainly the low Tc phase with a small amount of the high Tc phase. Hawever, films treated for 3h at 850°C consist mainly of the high Tc phase. This film is superconductive with a Tc(zero) of 106K. The Pb/Bi ratio of the films, analysed by SEM- EDS, are 0.12 and 0.18 for heat tratment times of 0.5 and 3h, respectively. The present study investigates the modulated structures of these films using HREM.

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