Reaction of rhenium and carbon at high pressures and temperatures

被引：44

作者：

Juarez-Arellano, Erick A. ^{[1
]}

Winkler, Bjoern ^{[1
]}

Friedrich, Alexandra ^{[1
]}

Wilson, Dan J. ^{[1
]}

Koch-Mueller, Monika ^{[2
]}

Knorr, Karsten ^{[1
,3
]}

Vogel, Sven C. ^{[4
]}

Wall, James J. ^{[4
]}

Reiche, Helmut ^{[4
]}

Crichton, Wilson ^{[5
]}

Ortega-Aviles, Mayahuel ^{[6
]}

Avalos-Borjav, Miguel ^{[7
]}

机构：

[1] Univ Frankfurt, Inst Geowissensch, D-60438 Frankfurt, Germany

[2] Geoforschungszentrum Potsdam, Sekt 4 1, D-14473 Potsdam, Germany

[3] Univ Kiel, Inst Geowissensch Mineral Kristallog, D-24098 Kiel, Germany

[4] Los Alamos Natl Lab, Lujan Ctr, Los Alamos, NM 87545 USA

[5] ESRF, F-38043 Grenoble, France

[6] LMEUAR, IMP, Mexico City 07730, DF, Mexico

[7] Univ Nacl Autonoma Mexico, CCMC, Ensenada 2681, Baja California, Mexico

来源：

ZEITSCHRIFT FUR KRISTALLOGRAPHIE | 2008年 / 223卷 / 08期

关键词：

Carbides; High pressures and temperatures; Synchrotron radiation; Analytical electron microscopy; Density functional theory (DFT); X-ray diffraction; Powder diffraction structure analysis;

D O I：

10.1524/zkri.2008.0054

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

A combined X-ray diffraction, EELS and DFT study of the reaction of rhenium with carbon at high-(P, T) conditions up to P-max = 67 GPa and T-max = 3800 K is presented. A hexagonal rhenium carbide, ReCx, was identified as the stable phase at high-(P, T) conditions. A composition of ReC0.5 is proposed. No evidence for a cubic ReC polymorph with rocksalt structure, as suggested in the literature, or for any other phase was found at the P-T conditions explored. A preliminary P-T rhenium-carbon phase diagram has been derived and properties such as bulk moduli and elastic stiffness coefficients were obtained.

引用

页码：492 / 501

页数：10

共 42 条

[21] Chemical vapour deposition of molybdenum carbides:: aspects of phase stability [J].

Lu, J ;

Hugosson, H ;

Eriksson, O ;

Nordström, L ;

Jansson, U .

THIN SOLID FILMS, 2000, 370 (1-2) :203-212

[22]

MONKHORST HJ, 1976, PHYS REV B, V13, P5188, DOI [10.1103/PhysRevB.13.5188, 10.1103/PhysRevB.16.1746]

[23] THE PHASE-BOUNDARY BETWEEN ALPHA-MG2SIO4 AND BETA-MG2SIO4 DETERMINED BY IN-SITU X-RAY-OBSERVATION [J].

MORISHIMA, H ;

KATO, T ;

SUTO, M ;

OHTANI, E ;

URAKAWA, S ;

UTSUMI, W ;

SHIMOMURA, O ;

KIKEGAWA, T .

SCIENCE, 1994, 265 (5176) :1202-1203

[24]

Perdew JP, 1997, PHYS REV LETT, V78, P1396, DOI 10.1103/PhysRevLett.77.3865

[25] ULTRAHIGH PRESSURE DIAMOND-ANVIL CELL AND SEVERAL SEMICONDUCTOR PHASE-TRANSITION PRESSURES IN RELATION TO FIXED-POINT PRESSURE SCALE [J].

PIERMARINI, GJ ;

BLOCK, S .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1975, 46 (08) :973-979

[26]

Popova S. V., 1971, High Temperatures - High Pressures, V3, P237

[27]

POPOVA SV, 1975, ACTA CRYSTALLOGRAPHI, V0031

[28]

POPOVA SV, 1972, PISMA ESKP TEOR FIZ, V16, P609

[29] RECENT ADVANCES IN MAGNETIC-STRUCTURE DETERMINATION BY NEUTRON POWDER DIFFRACTION [J].

RODRIGUEZCARVAJAL, J .

PHYSICA B, 1993, 192 (1-2) :55-69

[30]

RUDY E, 1967, T METALL SOC AIME, V239, P1247

← 1 2 3 4 5 →