Pulsed neutron imaging based crystallographic structure study of a japanese sword made by sukemasa in the muromachi period

Kenichi Oikawa, Yoshiaki Kiyanagi, Hirotaka Sato, Kazuma Ohmae, Anh Hoang Pham, Kenichi Watanabe, Yoshihiro Matsumoto, Takenao Shinohara, Tetsuya Kai, Stefanus Harjo, Masato Ohnuma, Sigekazu Morito, Takuya Ohba, Akira Uritani, Masakazu Ito

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

1 被引用数 (Scopus)

抄録

Energy-resolved neutron imaging using a pulsed neutron source is capable of visualizing crystallographic information over a large area of a sample by analyzing positiondependent Bragg-edge transmission spectra. We applied this method to a Japanese sword, signed by Sukemasa, to elucidate position dependent crystallographic characteristics, including but not limited to: degree of hardening, crystallite size, degree of preferred orientation. By comparing the degree of hardening to that of a contemporary short Japanese sword (dagger), the Sukemasa showed relatively small changes in the position of Bragg-edge (110) and its broadening. No coarse grain was found within the detector resolution (ca. 1 mm), and the crystallite size of the blade area was analyzed to be almost uniform and less than 1 µm. We thus recognize in a comprehensive manner that the Sukemasa sword was manufactured with great care.

本文言語英語
ホスト出版物のタイトルNeutron Radiography - 11th World Conference on Neutron Radiography, WCNR 2018
編集者Filomena Salvemini, Joseph J. Bevitt
出版社Association of American Publishers
ページ207-213
ページ数7
ISBN(印刷版)9781644900567
DOI
出版ステータス出版済み - 2020
外部発表はい
イベント11th World Conference on Neutron Radiography, WCNR 2018 - Sydney, オーストラリア
継続期間: 9 2 20189 7 2018

出版物シリーズ

名前Materials Research Proceedings
15
ISSN(印刷版)2474-3941
ISSN(電子版)2474-395X

会議

会議11th World Conference on Neutron Radiography, WCNR 2018
国/地域オーストラリア
CitySydney
Period9/2/189/7/18

All Science Journal Classification (ASJC) codes

  • 材料科学(全般)

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