Fig. 1. Backscattered images and EDX spectra of (a) URHA and (b) PRHA samples showing the elemental compositions of the RHA samples, the RHA composed of higher silicon compared to the other elements present in the samples.
Fig. 1. Backscattered images and EDX spectra of (a) URHA and (b) PRHA samples showing the elemental compositions of the RHA samples, the RHA composed of highersilicon compared to the other elements present in the samples.