| Abstract Scope |
Hard biomaterials reveal finely tailored complex assemblies of mineral crystals, often associated with impressive mechanical response. Here, we combine two methods to reproduce these complex assemblies in alumina ceramics. We combine magnetically assisted slip casting with templated grain growth in slurries containing particles of selected dimensions. After sintering, the obtained alumina parts exhibit high concentration and deliberate microstructures, but grain size and orientation varying as predicted by theories and models. Examples of periodic and multilayered microstructures are provided in aluminas of density from 65 to 95%. We investigate how the controlled microstructure only can be used to control the local mechanical properties and anticipate implications on the macroscopic response of the ceramics, in particular strength and toughness.
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