Published 05/07/2025 at 853 × 424 in Improving the Mechanical Properties of Salt Core through Reinforcing Fibers Fig. 6. SEM micrographs of the fractured salt core: (a) unreinforced, (b) with 0.3 wt% glass fiber Fig. 6. SEM micrographs of the fractured salt core: (a) unreinforced, (b) with 0.3 wt% glass fiber