Fractured surface of neat vinyl ester resin, 200x.
H. Ku, M. Prajapati, M. Trada
CC BY 4.0
H. Ku et. al. "Fracture Toughness of Vinyl Ester Composites Reinforced with Sawdust and Postcured in Microwaves", International Journal of Microwave Science and Technology <a rel="nofollow" class="external text" href="https://doi.org/10.1155/2012/152726">doi:10.1155/2012/152726</a>