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Open AccessArticle

Forge-Hardened TiZr Null-Matrix Alloy for Neutron Scattering under Extreme Conditions

Institute for Study of the Earth’s Interior, Okayama University, 827 Yamada, Misasa, Tottori 682-0193, Japan
Frontier Research Center for Applied Atomic Sciences, Ibaraki University, 162-1 Shirakata, Tokai, Naka, Ibaraki 319-1106, Japan
Author to whom correspondence should be addressed.
Academic Editor: Klaus-Dieter Liss
Metals 2015, 5(4), 2340-2350;
Received: 8 October 2015 / Revised: 2 December 2015 / Accepted: 7 December 2015 / Published: 9 December 2015
(This article belongs to the Special Issue Metals Challenged by Neutron and Synchrotron Radiation)
For neutron scattering research that is performed under extreme conditions, such as high static pressures, high-strength metals that are transparent to the neutron beam are required. The diffraction of the neutron beam by the metal, which follows Bragg’s law, can be completely removed by alloying two metallic elements that have coherent scattering lengths with opposite signs. An alloy of Ti and Zr, which is known as a TiZr null-matrix alloy, is an ideal combination for such purposes. In this study, we increased the hardness of a TiZr null-matrix alloy via extensive mechanical deformation at high temperatures. We successfully used the resulting product in a high-pressure cell designed for high-static-pressure neutron scattering. This hardened TiZr null-matrix alloy may play a complementary role to normal TiZr alloy in future neutron scattering research under extreme conditions. View Full-Text
Keywords: neutron scattering; null-matrix alloy; high pressure; TiZr neutron scattering; null-matrix alloy; high pressure; TiZr
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Okuchi, T.; Hoshikawa, A.; Ishigaki, T. Forge-Hardened TiZr Null-Matrix Alloy for Neutron Scattering under Extreme Conditions. Metals 2015, 5, 2340-2350.

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