Similarity Analysis between Ōyuya Cast Iron Bathtub and Excavated Cast Iron Lump in the Precinct of Tōdaiji Temple

Mayumi Hori, Katsumi Shozugawa, Bokuichiro Takano, Motoyuki Matsuo
2016 Zairyo-to-Kankyo  
In 2014, a cast iron lump was excavated from the precinct of T daiji temple. We investigated the similarity of the excavated cast iron lump and cast iron bathtub in the yuya (bath house), T daiji temple. Cu concentration and the ratio of Cu/Fe were used to compare their similarity. On the basis of the Cu/Fe ratio, we have estimated that both cast iron materials have different compositions. Moreover, XRD analysis showed that the rust piece of the cast iron bathtub contained a considerable amount
more » ... considerable amount of β-FeOOH (Akaganeite), which is only formed in the presence of Cl -. β-FeOOH was also found in the metallic parts of the bathtub sample.
doi:10.3323/jcorr.65.386 fatcat:joybhcqq2fgwvflkhauejqfo2y