2A1-G26 光造形マルチモールディングの研究 : (第3報)2光子マイクロ光造形法を用いた3次元シリカ構造体の形成

概要

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A three-dimensional (3D) molding process based on two-photon microstereolithography and floc casting was proposed and developed to fabricate 3D ceramic microstructures. In this method, a 3D polymeric mold fabricated by two-photon microstereolithography is covered with ceramic slurry and then thermally decomposed to obtain real 3D ceramic microstructures. In this study, a highly concentrated slurry containing submicron fused Si02 particles was used to fabricate transparent Si02 glass microstructures. Thermal decomposition of a photopolymer was examined by thermogravimetry and differential thermal analysis (TG-DTA). The temperature profile of the heating process is optimized using the master decomposition curve (MDC) theory to reduce the number of harmful cracks during thermal decomposition. It was demonstrated that a transparent fullerene-like model and spiral model could be fabricated by the optimized thermal decomposition.