Fabrication and efficiency evaluation of a hybrid NiCrAl pressure cell up to 4 GPa |
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| Authors: | Fujiwara Naoki Matsumoto Takehiko Koyama-Nakazawa Kazuko Hisada Akihiko Uwatoko Yoshiya |
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| Affiliation: | Graduate School of Human and Environmental Studies, Kyoto University, Nihonmatsu, Sakyo-Ku, Kyoto 606-8501, Japan. naokif@mbox.kudpc.kyoto-u.ac.jp |
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| Abstract: | A hybrid NiCrAl pressure cell was fabricated to measure magnetic quantities under high pressure above 3 GPa. A pressure of 4.0 GPa was achieved and the pressure cell was found to be reusable even after a pressurizing trial up to 4.0 GPa. Pressure was monitored using (63)Cu nuclear quadrupole resonance of Cu(2)O and ruby fluorescence. The pressure efficiency of a fresh cell was maintained at 96%, and no appreciable deformation was observed at pressures below 3 GPa; on the other hand, the efficiency after pressurizing trials decreased gradually and reached 75% at 4 GPa accompanied by a maximum expansion inside the cylinder of 2%. |
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