Fabrication and efficiency evaluation of a hybrid NiCrAl pressure cell up to 4 GPa.
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%.
Graduate School of Human and Environmental Studies, Kyoto University, Nihonmatsu, Sakyo-Ku, Kyoto 606-8501, Japan. naokif@mbox.kudpc.kyoto-u.ac.jp
Naoki
N
Fujiwara
Takehiko
T
Matsumoto
Kazuko
K
Koyama-Nakazawa
Akihiko
A
Hisada
Yoshiya
Y
Uwatoko
D002858:Chromium Alloys / Q000737:chemistry*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008365:Manometry / Q000295:instrumentation* / Q000379:methods; D010812:Physical Stimulation / Q000295:instrumentation* / Q000379:methods; D011312:Pressure; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013048:Specimen Handling / Q000295:instrumentation* / Q000379:methods; D014159:Transducers
D002858:Chromium Alloys