The design of 2/8-type high-pressure cell applied to in situ neutron diffraction

doi:10.1088/1674-1056/28/7/070701

中国物理B ›› 2019, Vol. 28 ›› Issue (7): 70701-070701.doi: 10.1088/1674-1056/28/7/070701

• SPECIAL TOPIC—Recent advances in thermoelectric materials and devices • 上一篇下一篇

The design of 2/8-type high-pressure cell applied to in situ neutron diffraction

Chun-Jiang Xiang(向春江), Qi-Wei Hu(胡启威), Qiang Wang(王强), Lei Xie(谢雷), Xi-Ping Chen(陈喜平), Lei-Ming Fang(房雷鸣), Duan-Wei He(贺端威)

1 Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China;
2 Key Laboratory of Neutron Physics and Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621999, China

收稿日期:2019-04-02 修回日期:2019-05-13 出版日期:2019-07-05 发布日期:2019-07-05
通讯作者: Lei-Ming Fang, Duan-Wei He E-mail:flmyaya2008@163.com;duanweihe@scu.edu.cn
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 11427810), the National Key Research and Development Program of China (Grant No. 2016YFA0401503), and the Project for Science and Technology Plan of Sichuan Province, China (Grant No. 2015GZ0053).

The design of 2/8-type high-pressure cell applied to in situ neutron diffraction

Chun-Jiang Xiang(向春江)¹, Qi-Wei Hu(胡启威)¹, Qiang Wang(王强)¹, Lei Xie(谢雷)², Xi-Ping Chen(陈喜平)², Lei-Ming Fang(房雷鸣)², Duan-Wei He(贺端威)¹

1 Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China;
2 Key Laboratory of Neutron Physics and Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621999, China

Received:2019-04-02 Revised:2019-05-13 Online:2019-07-05 Published:2019-07-05
Contact: Lei-Ming Fang, Duan-Wei He E-mail:flmyaya2008@163.com;duanweihe@scu.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 11427810), the National Key Research and Development Program of China (Grant No. 2016YFA0401503), and the Project for Science and Technology Plan of Sichuan Province, China (Grant No. 2015GZ0053).

摘要/Abstract

摘要：

The DIA-type Kawai cell possesses a larger volume and a quasi-hydrostatic pressure environment and has been widely used in materials' synthesis and x-ray diffraction experiments. However, few high-pressure in situ neutron diffraction experiments were performed in the DIA-type Kawai cell because there is no wide window for neutron diffraction and the second-stage anvils and guild block material attenuates the neutron signal significantly. In this work, we tentatively modified the normal DIA-type Kawai cell (MA 2-6-8) into a MA 2-8 mode by removing the six first-stage tungsten carbide anvils. As a consequence, the eight tungsten carbide anvils (Kawai cell) are directly driven by the guide blocks. The results of ex situ and in situ pressure calibration show that the cell pressure can reach 5 GPa with small truncation edge lengths (TEL) of 3 mm even at the load of 300 kN. It suggests that this MA 2-8 cell may open a new way for high-pressure and high-temperature in situ neutron diffraction.

关键词: DIA-type apparatus, Kawai-type cell, in situ neutron diffraction

Abstract:

Key words: DIA-type apparatus, Kawai-type cell, in situ neutron diffraction

中图分类号: (Other topics in instruments, apparatus, and components common to several branches of physics and astronomy)

07.90.+c

07.35.+k (High-pressure apparatus; shock tubes; diamond anvil cells) 29.20.dk (Synchrotrons) 29.25.Dz (Neutron sources)

向春江, 胡启威, 王强, 谢雷, 陈喜平, 房雷鸣, 贺端威. The design of 2/8-type high-pressure cell applied to in situ neutron diffraction[J]. 中国物理B, 2019, 28(7): 70701-070701.

Chun-Jiang Xiang(向春江), Qi-Wei Hu(胡启威), Qiang Wang(王强), Lei Xie(谢雷), Xi-Ping Chen(陈喜平), Lei-Ming Fang(房雷鸣), Duan-Wei He(贺端威). The design of 2/8-type high-pressure cell applied to in situ neutron diffraction[J]. Chin. Phys. B, 2019, 28(7): 70701-070701.

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The design of 2/8-type high-pressure cell applied to in situ neutron diffraction

The design of 2/8-type high-pressure cell applied to in situ neutron diffraction

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