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Fig. 6 | Heritage Science

Fig. 6

From: Optimizing the thermal treatment for restoration of brittle archaeological silver artifacts

Fig. 6

Metallographs of samples after thermal treatments in the absence of O2. a Microstructure of Sno air 850 and the region of EDS mapping analysis (red box). b Microstructure of Sno air 850 (red box in a, partially enlarged view), the position of EDS spot analysis (spots 1–6), and the secondary β phase (red arrow) obtained through the thermal treatments in the oxygen-free environment

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