Non-destructive analyses of iron sword excavated from Ohtake-nishi archaeological site in Osaka Prefecture

Mitsui, Seiichiro

An ancient iron sword (ca 2,000 year old) was excavated from Ohtake-nishi archaeological site in Yao City, Osaka Prefecture. To understand corrosion state of the sword, we analysed thickness of corrosion layer with a X-ray CT and corrosion products with a portable XRD/XRF. As results, we found that the thickness of corrosion layer on the surface of the sword was generally uniform and identified siderite (FeCO $_{3}$ ) and goethite (-FeOOH) as corrosion products.

Language	:	Japanese
Journal	:	Yaoshiritsu Rekishi Minzoku Shiryokan Kenkyu Kiyo
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Number	:	24
Pages	:	p.73 - 80
Publication Year/Month	:	2013/03
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PDF	:	AA2013-0015.pdf:2.54MB
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Registration No. : AA20130015
JAEA Abstracts No. : 43000862
Paper Submission No. : 15977

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