TY - GEN
T1 - Pulsed neutron imaging based crystallographic structure study of a japanese sword made by sukemasa in the muromachi period
AU - Oikawa, Kenichi
AU - Kiyanagi, Yoshiaki
AU - Sato, Hirotaka
AU - Ohmae, Kazuma
AU - Pham, Anh Hoang
AU - Watanabe, Kenichi
AU - Matsumoto, Yoshihiro
AU - Shinohara, Takenao
AU - Kai, Tetsuya
AU - Harjo, Stefanus
AU - Ohnuma, Masato
AU - Morito, Sigekazu
AU - Ohba, Takuya
AU - Uritani, Akira
AU - Ito, Masakazu
N1 - Publisher Copyright:
© 2020, Association of American Publishers. All rights reserved.
PY - 2020
Y1 - 2020
N2 - 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.
AB - 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.
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U2 - 10.21741/9781644900574-32
DO - 10.21741/9781644900574-32
M3 - Conference contribution
AN - SCOPUS:85096932958
SN - 9781644900567
T3 - Materials Research Proceedings
SP - 207
EP - 213
BT - Neutron Radiography - 11th World Conference on Neutron Radiography, WCNR 2018
A2 - Salvemini, Filomena
A2 - Bevitt, Joseph J.
PB - Association of American Publishers
T2 - 11th World Conference on Neutron Radiography, WCNR 2018
Y2 - 2 September 2018 through 7 September 2018
ER -