Myers Bigel, P.A.
Surface structure of aluminum-based member
To provide a surface structure of an aluminum-based member which can further improve heat insulating properties and heat shielding properties of the aluminum-based member. In an aluminum-based member 1 containing at least a silicon composition, a porous oxide film 2 is provided on a surface of the aluminum-based member 1, and the oxide film 2 is constituted to have at least a pore 2a extending from the surface toward an inside in a thickness direction of the oxide film 2 and a void 3a present inside the silicon composition 3 extending in a direction substantially orthogonal to the thickness direction of the oxide film 2. 
SUZUKI MOTOR CORPORATION
F C F C F F C C C Y C C F Y
F02F C25D F02F C25D F01M F02F C25D C25D C25D Y10T C25D C25D F02F Y10T
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Masahiro Haruhiko Muneaki
Fujita Murakami Nakamura