| GENERAL |
|
|
|
|
Neutron Diffraction of Large-Volume Samples at High Pressure Using Compact Opposed-Anvil Cells |
| Xiao-Lin Ni1, Lei-Ming Fang2**, Xin Li1, Xi-Ping Chen2, Lei Xie2, Duan-Wei He1, Zi-Li Kou1** |
1Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065
2Key Laboratory of Neutron Physics and Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621999
|
|
| Cite this article: |
|
Xiao-Lin Ni, Lei-Ming Fang, Xin Li et al 2018 Chin. Phys. Lett. 35 040701 |
|
|
|
|
Abstract Neutron diffraction techniques of large-volume samples at high pressure using compact opposed-anvil cells are developed at a reactor neutron source, China's Mianyang research reactor. We achieve a high-pressure condition of in situ neutron diffraction by means of a newly designed large-volume opposed-anvil cell. This pressure calibration is based on resistance measurements of bismuth and the neutron diffraction of iron. Pressure calibration experiments are performed at room temperature for a new cell using the tungsten carbide anvils with a tapered angle of 30$^{\circ}$, ${\it \Phi}$4.5 mm culet diameter and the metal-nonmetal composite gasket with a thickness of 2 mm. Transitions in Bi (I–II 2.55 GPa, III–V 7.7 GPa) are observed at 100 and 300 kN, respectively, by resistance measurements. The pressure measurement results of neutron diffraction are consistent with resistance measurements of bismuth. As a result, pressures up to about 7.7 GPa can routinely and stably be achieved using this apparatus, with the sample volume of 9 mm$^{3}$.
|
|
|
Received: 20 December 2017
Published: 13 March 2018
|
|
| PACS: |
07.35.+k
|
(High-pressure apparatus; shock tubes; diamond anvil cells)
|
| |
07.90.+c
|
(Other topics in instruments, apparatus, and components common to several branches of physics and astronomy)
|
| |
29.20.dk
|
(Synchrotrons)
|
| |
29.25.Dz
|
(Neutron sources)
|
|
|
| Fund: Supported by the National Key Research and Development Program of China under Grant No 2016YFA0401503, the Science Challenge Project under Grant No TZ2016001, and the National Natural Science Foundation of China under Grant No 11427810. |
|
|
|
| [1] | Irifune T, Kurio A, Sakamoto S et al 2003 Nature 421 599 | | [2] | Tian Y J, Xu B, Yu D L et al 2013 Nature 493 385 | | [3] | Lunine J I, Stevenson D J et al 1985 Astrophys. J. Suppl. Ser. 58 493 | | [4] | Leonid D and Natalia D 2012 Nat. Commun. 3 1163 | | [5] | Neumann D A 2006 Mater. Today 9 34 | | [6] | Ye C T, Liu Y T et al 2006 Physics 35 961 (in Chinese) | | [7] | Kisi E H and Howard C J 2008 Applications of Neutron Powder Diffraction (Oxford: Oxford University Press) | | [8] | Hull S 2013 Techniques in High Pressure Neutron Scattering (Florida: CRC Press) | | [9] | Shull C G, Strauser W A, Wollan E O et al 1951 Phys. Rev. 83 333 | | [10] | Besson J M, Nelmes R J, Hamel G et al 1992 Physica B 180-181 907 | | [11] | Klotz S, Godec Y L, Stuhr U et al 2008 Appl. Phys. Lett. 93 091904 | | [12] | Xu J and Mao H K 2000 Science 290 783 | | [13] | Xu J, Mao H K, Hemley R J et al 2002 J. Phys.: Condens. Matter 14 11543 | | [14] | Xu J, Ding Y, Jacobsen S D et al 2004 High Press. Res. 24 247 | | [15] | Boehler R, Guthrie M, Molaison J J et al 2013 High Press. Res. 33 546 | | [16] | Hui B, He D W, Lu Y P et al 2013 Chin. J. High Press. Phys. 27 517 (in Chinese) | | [17] | Fang L M, Wang Y, Chen X P et al 2014 Chin. Phys. B 23 110701 | | [18] | Decker D L, Bassett W A and Merrill L 1972 J. Phys. Chem. Ref. Data 1 773 | | [19] | Gotou H, Yagi T, Frost D J and Rubie D C 2006 Rev. Sci. Instrum. 77 035113 | | [20] | Bean V E, Akimoto S, Bell P M et al 1986 Physica B+C 139 52 | | [21] | Mao H K, Bassett W A and Takahashi T 1967 J. Appl. Phys. 38 272 | | [22] | Dunstan D J 1989 Rev. Sci. Instrum. 60 3789 | | [23] | Wang W D, He D W and Wang H K 2010 Acta Phys. Sin. 59 3107 (in Chinese) | | [24] | Xu C, He D W, Wang H K et al 2013 Int. J. Refract. Met. Hard Mater. 36 232 |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
