著者
永田 和宏 松原 章浩 國分(齋藤) 陽子 中村 俊夫
出版者
一般社団法人 日本鉄鋼協会
雑誌
鉄と鋼 (ISSN:00211575)
巻号頁・発行日
vol.102, no.12, pp.736-741, 2016 (Released:2016-11-30)
参考文献数
15
被引用文献数
1

Steel of Japanese swords has been produced with Tatara process from iron sand and charcoal. Carbon dissolved in steel was absorbed from wooden charcoal fuel during the production of the steel. From the decay of 14C activity in the steel, the 14C age of Japanese sword can be determined. The 14C ages of 4 Japanese swords were measured with accelerator mass spectrometry and calibrated to calendar years. Each 14C age provided plural calendar year periods with definite probabilities, and one of the periods agreed with the production year of each sword that was determined from the sword master’s name cut in the grip of his sword after taking the age range of charcoal used for steel production and usage for several generations of the same names of sword masters into account.

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@udasji @ke_1sato へえ、そんなことがあるのですか。 と、刀の場合、製鉄の過程で炭の炭素が鋼に移行することで強くさせており、おそらくその炭素を測っていると思うのですが、紙と違って炭素の割合は低いので大変そうだ、とG… https://t.co/NJbIyi87a4
https://t.co/OCU4udK57c 興味深い...わりと最近の研究? こういう風に刀のこと調べられたら楽しいだろうなぁ
https://t.co/Fh1fCIQAIr 面白い

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