High-energy X-ray diffraction of a hydrous silicate liquid under conditions of high pressure and temperature in a modified hydrothermal diamond anvil cell

In situ high pressure energy dispersive X-ray diffraction measurements on layered perovskite-like manganate Ca 3 Mn 2 O 7 under pressures up to 35 GPa have been performed by using diamond anvil cell with synchrotron radiation. The results show that the structure of layered perovskite-like manganate Ca 3 Mn 2 O 7 is unstable under pressure due to the easy compression of NaCl-type blocks. The structure of Ca 3 Mn 2 O 7 underwent two phase transitions under pressures in the range of 0~35 GPa. One was at about 1.3 GPa with the crystal structure changing from tetragonal to orthorhombic. The other was at about 9.5 GPa with the crystal structure changing from orthorhombic back to another tetragonal.

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A diamond anvil cell with resistive heating for high pressure and high temperature x-ray diffraction and absorption studies

Review of Scientific Instruments ◽

10.1063/1.2968199 ◽

2008 ◽

Vol 79 (8) ◽

pp. 085103 ◽

Cited By ~ 20

Author(s):

Sebastien Pasternak ◽

Giuliana Aquilanti ◽

Sakura Pascarelli ◽

Roberta Poloni ◽

Bernard Canny ◽

...

Keyword(s):

High Pressure ◽

High Temperature ◽

Diamond Anvil Cell ◽

X Ray Diffraction ◽

Resistive Heating ◽

X Ray ◽

Absorption Studies ◽

Diamond Anvil

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Equation of state and electrical transport properties of mixture of Li1.2Mn0.54Co0.13Ni0.13O2 and LiNi0.87Co0.09Mn0.03Al0.01O2 at high pressure

International Journal of Modern Physics B ◽

10.1142/s0217979221502271 ◽

2021 ◽

pp. 2150227

Author(s):

Lun Xiong ◽

Pu Tu ◽

Yongqing Hu ◽

Xiang Hou ◽

Shiyun Wu ◽

...

Keyword(s):

High Pressure ◽

Equation Of State ◽

Electrical Transport ◽

Room Temperature ◽

Diamond Anvil Cell ◽

Hexagonal Structure ◽

X Ray Diffraction ◽

Electrical Transport Properties ◽

X Ray ◽

Diamond Anvil

The equation of state (EOS) of mixture of Li[Formula: see text]Mn[Formula: see text]Co[Formula: see text]Ni[Formula: see text]O2 and LiNi[Formula: see text] Co[Formula: see text]Mn[Formula: see text]Al[Formula: see text]O2 was studied by synchrotron radiation X-ray diffraction (XRD) at room-temperature in a diamond anvil cell (DAC). The results showed that the hexagonal structure is maintained to the highest pressure of 23.1 GPa. The bulk modulus and its first derivative obtained from XRD data are [Formula: see text] GPa and [Formula: see text], respectively. In addition, we have investigated the high-pressure electrical conductivity of the mixture of Li[Formula: see text]Mn[Formula: see text]Co[Formula: see text]Ni[Formula: see text]O2 and LiNi[Formula: see text]Co[Formula: see text]Mn[Formula: see text]Al[Formula: see text]O2 to 22.9 GPa in a DAC. It is found that the resistance decreases with the increase of pressure and changes exponentially.

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Crystal structure and the equation of state of thorium monophosphide for pressures up to 50 GPa

Journal of Applied Crystallography ◽

10.1107/s002188988801091x ◽

1989 ◽

Vol 22 (1) ◽

pp. 61-63 ◽

Cited By ~ 15

Author(s):

J. S. Olsen ◽

L. Gerward ◽

U. Benedict ◽

H. Luo ◽

O. Vogt

Keyword(s):

Crystal Structure ◽

Phase Transition ◽

High Pressure ◽

Synchrotron Radiation ◽

Diamond Anvil Cell ◽

X Ray Diffraction ◽

Pressure Derivative ◽

X Ray ◽

Cscl Structure ◽

Diamond Anvil

High-pressure X-ray diffraction studies have been performed on ThP using synchrotron radiation and a diamond-anvil cell. The bulk modulus B 0 and its pressure derivative B′0 have been determined (B 0 = 137 GPa; B′0 = 5.1). A phase transition from the NaCl structure to the CsCl structure was observed at about 30 GPa.

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An easy to use X-ray collimator for Mao-Bell type diamond anvil cell

Powder Diffraction ◽

10.1154/1.2362856 ◽

2006 ◽

Vol 21 (4) ◽

pp. 320-322 ◽

Cited By ~ 1

Author(s):

P. Ch. Sahu ◽

N. R. Sanjay Kumar ◽

N. V. Chandra Shekar ◽

N. Subramanian

Keyword(s):

High Pressure ◽

Diamond Anvil Cell ◽

Radiation Safety ◽

Incident Beam ◽

X Ray Diffraction ◽

X Ray ◽

Safety Requirements ◽

Diamond Anvil ◽

Special Precaution

An incident beam X-ray collimator for Mao-Bell type diamond anvil cell (DAC) has been developed. Alignment of the collimator is carried out in situ while viewing the image of the collimated X-ray spot formed on a thin layer of fluorescent material spread on the diamond anvil culets with the help of a microscope. Special precaution has been taken to meet the radiation safety requirements during alignment and routine use. This collimator is of immense help for laboratory based high pressure X-ray diffraction experiments.

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HIGH-PRESSURE STRUCTURE STUDY OF CuBa2Ca3Cu4O10 + δ SUPERCONDUCTOR

Modern Physics Letters B ◽

10.1142/s0217984905008335 ◽

2005 ◽

Vol 19 (06) ◽

pp. 313-316

Author(s):

X. M. QIN ◽

Y. YU ◽

G. M. ZHANG ◽

F. Y. LI ◽

J. LIU ◽

...

Keyword(s):

Crystal Structure ◽

High Pressure ◽

Room Temperature ◽

Diamond Anvil Cell ◽

Structure Study ◽

X Ray Diffraction ◽

X Ray ◽

Diamond Anvil ◽

Murnaghan Equation

In-situ high-pressure energy dispersive X-ray diffraction measurements on CuBa 2- Ca 3 Cu 4 O 10 + δ (Cu-1234) have been performed by using diamond anvil cell (DAC) device with synchrotron radiation. The results suggest that the crystal structure of Cu-1234 superconductor is stable under pressures up to 34 GPa at room temperature. According to the Birch–Murnaghan equation of state, the bulk modulus is obtained to be ~ 150 GPa.

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Sound velocity measurement by inelastic X-ray scattering at high pressure and temperature by resistive heating diamond anvil cell

Russian Geology and Geophysics ◽

10.1016/j.rgg.2015.01.012 ◽

2015 ◽

Vol 56 (1-2) ◽

pp. 190-195 ◽

Cited By ~ 3

Author(s):

E. Ohtani ◽

K. Mibe ◽

T. Sakamaki ◽

S. Kamada ◽

S. Takahashi ◽

...

Keyword(s):

High Pressure ◽

Sound Velocity ◽

Velocity Measurement ◽

Diamond Anvil Cell ◽

Resistive Heating ◽

High Pressure And Temperature ◽

X Ray ◽

X Ray Scattering ◽

Diamond Anvil ◽

Ray Scattering

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High Pressure Behavior of Mascagnite from Single Crystal Synchrotron X-ray Diffraction Data

Crystals ◽

10.3390/cryst11080976 ◽

2021 ◽

Vol 11 (8) ◽

pp. 976

Author(s):

Paola Comodi ◽

Maximiliano Fastelli ◽

Giacomo Criniti ◽

Konstantin Glazyrin ◽

Azzurra Zucchini

Keyword(s):

High Pressure ◽

Single Crystal ◽

Room Temperature ◽

Diamond Anvil Cell ◽

Geometrical Parameters ◽

X Ray Diffraction ◽

Third Order ◽

X Ray ◽

Diamond Anvil ◽

Murnaghan Equation

High-pressure synchrotron X-ray diffraction was carried out on a single crystal of mascagnite, compressed in a diamond anvil cell. The sample maintained its crystal structure up to ~18 GPa. The volume–pressure data were fitted by a third-order Birch–Murnaghan equation of state (BM3-EOS) yielding K0 = 20.4(7) GPa, K’0 = 6.1(2), and V0 = 499(1) Å3, as suggested by the F-f plot. The axial compressibilities, calculated with BM3-EOS, were K0a = 35(3), K’0a = 7.7(7), K0b = 10(3), K’0b = 7(1), K0c = 25(1), and K’0c = 4.3(2) The axial moduli measured using a BM2-EOS and fixing K’0 equal to 4, were K0a = 52(2), K0b = 20 (1), and K0c = 29.6(4) GPa, and the anisotropic ratio of K0a:K0b:K0c = 1:0.4:0.5. The evolution of crystal lattice and geometrical parameters indicated no phase transition until 17.6 GPa. Sulphate polyhedra were incompressible and the density increase of 30% compared to investigated pressure should be attributed to the reduction of weaker hydrogen bonds. In contrast, some of them, directed along [100], were very short at room temperature, below 2 Å, and showed a very low compressibility. This configuration explains the anisotropic compressional behavior and the lowest compressibility of the a axis.

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