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Zr-based bulk metallic glass as a cylinder material for high pressure apparatuses |
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| Authors: | Kazuki Komatsu Koji Munakata Kazuyuki Matsubayashi Yoshiya Uwatoko Yoshihiko Yokoyama Kazumasa Sugiyama |
| Institution: | 1. Geochemical Research Center, Graduate School of Science, The University of Tokyo, Tokyo, Japan;2. Comprehensive Research Organization for Science and Society, Tokai, Japan;3. The Institute for Solid State Physics, The University of Tokyo, Kashiwa, Japan;4. Institute for Materials Research, Tohoku University, Aoba-ku, Japan |
| Abstract: | Zirconium-based bulk metallic glass (Zr-based BMG) has outstanding properties as a cylinder material for piston-cylinder high pressure apparatuses and is especially useful for neutron scattering. The piston-cylinder consisting of a Zr-based BMG cylinder with outer/inner diameters of 8.8/2.5?mm sustains pressures up to 1.81?GPa and ruptured at 2.0?GPa, with pressure values determined by the superconducting temperature of lead. The neutron attenuation of Zr-based BMG is similar to that of TiZr null-scattering alloy and more transparent than that of CuBe alloy. No contamination of sharp Bragg reflections is observed in the neutron diffraction pattern for Zr-based BMG. The magnetic susceptibility of Zr-based BMG is similar to that of CuBe alloy; this leads to a potential application for measurements of magnetic properties under pressure. |
| Keywords: | bulk metallic glass piston-cylinder neutron scattering magnetic property measurement |