Fig. 4From: Optimizing the thermal treatment for restoration of brittle archaeological silver artifactsMechanical strength of the samples (σbb, Eb, and HV) calculated by MATLAB. Sno corr, Scorr, S200–S900 (light red, blue, and green), Sno air 850 (dark red, blue, and green, right side of this figure), and Sno corr 850 (dark red, blue, and green, left side of this figure)Back to article page