fig3

Figure 3. SEM and EDS spectra of SBSRN ceramics, (A) R = Mn, (B) R = Ti, (C) R = Sn, (D) R = Hf.
Figure 3. SEM and EDS spectra of SBSRN ceramics, (A) R = Mn, (B) R = Ti, (C) R = Sn, (D) R = Hf.
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