In additive manufacturing, indirect laser sintering is used to process and fabricate ceramic materials using a polymer–ceramics green body. The mechanical strength of the green body is important to hold the shape and to enable the use of laser with low power density during the laser sintering process. Because the microstructure of the green body will considerably affect the density of the final product, this study demonstrated a feasible controlled formation of Poly (methylmethacrylate) (PMMA)–Al 2 O 3 composite particles by an electrostatic assembly method that was used for the fabrication of the green body with improved mechanical properties, which were determine using an indentation test. The controllable homogeneous decoration of desired submicron-sized PMMA particles on Al 2 O 3 particles allowed an effective use of PMMA additives while exhibiting considerable mechanical property improvement of the green body compared to poly(vinyl alco...

中文翻译：

---

使用通过静电组装制造的PMMA–Al 2 O 3复合颗粒提高坯体强度

在增材制造中，间接激光烧结用于使用聚合物-陶瓷生坯加工和制造陶瓷材料。生坯的机械强度对于保持形状并在激光烧结过程中使用低功率密度的激光器很重要。由于生坯的微观结构会极大地影响最终产品的密度，因此本研究表明，通过用于制造的静电组装方法，可控制地形成聚甲基丙烯酸甲酯（PMMA）–Al 2 O 3复合颗粒使用压痕测试确定具有改善的机械性能的生坯。