Texture in ceramics can enhance their functional and structural properties. Current methods for texturation in dense ceramics employ plate-like particles or microplatelets as starting powders and processes that drive their orientation into specific directions. Using ultra-low magnetic fields combined with slip casting, it is possible to purposely orient magnetically responsive particles in any direction. Here, we explore the application of magnetic slip casting to bimodal slurries containing alumina nanoparticles and alumina microplatelets of various dimensions to create texture in ceramics with different grain sizes. After sintering, the obtained ceramics show anisotropic grains with controllable orientations, grain length of 3–7 μm, mild open porosity between 30–40 %, and interesting cracking behavior. Textured porous ceramics with tunable grain dimensions and orientations are promising for filtering, biomedical or composite applications.

陶瓷质地可以增强其功能和结构性能。当前致密陶瓷中的纹理化方法采用板状颗粒或微片作为起始粉末，并将其定向为特定方向的过程。通过结合使用超低磁场和粉浆浇铸，可以有目的地使磁响应粒子沿任何方向定向。在这里，我们探索了磁滑铸造在包含各种尺寸的氧化铝纳米颗粒和氧化铝微片的双峰浆料中的应用，以在具有不同晶粒尺寸的陶瓷中产生质感。烧结后，所获得的陶瓷显示出各向异性的晶粒，其取向方向可控，晶粒长度为3–7μm，开孔孔隙度在30％至40％之间，并且表现出有趣的开裂行为。