日本金属学会誌

J. Japan Inst. Metals, Vol. 69, No. 8 (2005),
pp. 755-758

Hydrogen Storage Alloy Thin Film Actuator Controlled by Electric Current

Takashi Ogasawara1,, Haru-Hisa Uchida1,2 and Yoshitake Nishi1

1Department of Material Science, Graduate School of Engineering, Tokai University, Hiratsuka 259-1292
2Department of Human Development, Tokai University, Hiratsuka 259-1292

Abstract:

A mechanical device with hydrogen storage thin film alloy was made up and tested. The sample in thin film form deposited on polyimide film substrate was driven by the mechanical volume change in the course of hydrogen sorption reactions. In this study, the correlations of mechanical strain, applied electric current in the sample and surface temperature were investigated. Not only the hydrogen pressure around but also the electric current in the film applied, where the electric resistance changed with the hydrogen amount absorbed, controlled the sample movement.


(Received 2005/4/26)

Keywords:

hydrogen storage alloy, thin film, composite materials, electric resistance, temperature influence, controlled by current


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