One-dimensional electrospun alumina borate ceramics: transformation from fiber-like structure to ribbon-like structure at the increased concentrations of precursor sol

In this work, one-dimensional alumina borate (AB) ceramics were prepared by a combination of electrospinning technique and sol-gel method. Basic aluminum acetate was used to prepare precursor sols with different concentrations. Polyvinyl pyrrolidone (PVP) was used as the polymer additive. The morphology of the electrospun ceramic products at increased sol concentrations was observed and the corresponding mechanism was discussed. With the sol concentration increased from 10