1523 シート積層法によるポーラス機能構造体の創製(S13 新機能多孔質材料の創製と評価,21世紀地球環境革命の機械工学:人・マイクロナノ・エネルギー・環境)
詳細
A novel 3-D modeling method that combines rapid prototyping with spark plasma sintering (SPS) is proposed, which enables us to control internal porous structures. Titanium sheet or powder-tape is cut by a pulsed Nd: YAG laser to form a 2-D fractal cross-section. These 2-D layers are temporarily laminated in a carbon mold, and then jointed by the SPS method, so that an internal porous structure is maintained. Process parameters for the sheet lamination method have extensively been investigated. A variety of porestructure characteristics are measured in the porous component for a biotechnological use. In addition, this method can be utilized to form a 2.5-D structure with negative Poisson's ratio.
