Fabrication and efficiency evaluation of a hybrid NiCrAl pressure cell up to 4 GPa
Fabrication and efficiency evaluation of a hybrid NiCrAl pressure cell up to 4 GPa
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DOI：
10.1063/1.2757129
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发表时间：
2007-07-01
影响因子：
1.6
通讯作者：
Uwatoko, Yoshiya
中科院分区：
文献类型：
--
作者：
Fujiwara, Naoki;Matsumoto, Takehiko;Uwatoko, Yoshiya
制作了一种混合式NiCrAl压力室，用于测量3 Gpa以上高压下的磁化量。获得了4.0 Gpa的压力，并发现即使在4.0 Gpa的加压试验后，压力室仍可重复使用。压力监测采用铜-63核四极共振Cu2O和红宝石荧光。新鲜电池的压力效率保持在96%，在压力低于3 GPa时没有明显的变形；另一方面，加压试验后的效率逐渐下降，在4 GPa时达到75%，同时圆柱体内的最大膨胀为2%。(C)2007年美国物理研究所。
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 Cu-63 nuclear quadrupole resonance of Cu2O 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%. (c) 2007 American Institute of Physics.