Synthesis and compressive behavior of Cr2GeC up to 48 GPa

被引：26

作者：

Phatak, Nishad A. ^{[1
]}

Kulkarni, Shrinivas R. ^{[1
]}

Drozd, Vadym ^{[1
]}

Saxena, Surendra K. ^{[1
]}

Deng, Liwei ^{[3
,4
]}

Fei, Yingwei ^{[3
,4
]}

Hu, Jingzhu ^{[5
]}

Luo, Wei ^{[2
]}

Ahuja, Rajeev ^{[2
]}

机构：

[1] Florida Int Univ, Ctr Study Matter Extreme Condit CeSMEC, Miami, FL 33199 USA

[2] Uppsala Univ, Dept Phys, Condensed Matter Theory Grp, S-75121 Uppsala, Sweden

[3] Carnegie Inst Washington, Geophys Lab, Washington, DC 20015 USA

[4] Ctr High Pressure, Washington, DC 20015 USA

[5] Univ Chicago, X17C NSLS Cars, Upton, NY 11793 USA

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2008年 / 463卷 / 1-2期

基金：

美国国家科学基金会; 美国能源部;

关键词：

MAX phases; synthesis; ternary layered carbide; Cr2GeC; bulk modulus; high pressure; diamond anvil cell; X-ray diffraction; synchrotron radiation;

D O I：

10.1016/j.jallcom.2007.09.078

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

M(n+1)AX(n) compounds have gathered huge momentum because of its exciting properties. In this paper we report the synthesis of ternary layered ceramic Cr2GeC, a 211 M(n+1)AX(n) compound by hot-pressing. Scanning electron microscopy and X-ray diffraction have been employed to characterize the new synthesized phase. High-pressure compressibility of Cr2GeC were measured using diamond anvil cell and synchrotron C radiation at room temperature up to 48 GPa. No phase transformation was observed in the experimental pressure range. The bulk modulus of Cr2GeC calculated using the Birch-Murnaghan equation of state is 169 +/- 3 GPa, with K' = 3.05 +/- 0.15. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：220 / 225

页数：6

共 31 条

[1]

BARSOUM, 1999, METALL MAT T A, V30, P1729

[2]

Barsoum MW, 1997, J MATER SYNTH PROCES, V5, P197

[3] The MN+1AXN phases:: A new class of solids;: Thermodynamically stable nanolaminates [J].

Barsoum, MW .

PROGRESS IN SOLID STATE CHEMISTRY, 2000, 28 (1-4) :201-281

[4] Layered machinable ceramics for high temperature applications [J].

Barsoum, MW ;

Brodkin, D ;

ElRaghy, T .

SCRIPTA MATERIALIA, 1997, 36 (05) :535-541

[5] Thermal and electrical properties of Nb2AlC, (Ti, Nb)2AlC and Ti2AlC [J].

Barsoum, MW ;

Salama, I ;

El-Raghy, T ;

Golczewski, J ;

Porter, WD ;

Wang, H ;

Seifert, HJ ;

Aldinger, F .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2002, 33 (09) :2775-2779

[6] Synthesis and characterization of a remarkable ceramic: Ti3SiC2 [J].

Barsoum, MW ;

ElRaghy, T .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1996, 79 (07) :1953-1956

[7]

BUSCHOW, 2006, ENCY MAT SCI TECHNOL

[8] Processing and mechanical properties of Ti3SiC2:: I, reaction path and microstructure evolution [J].

El-Raghy, T ;

Barsoum, MW .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1999, 82 (10) :2849-2854

[9]

GANGULY A, 2004, J ALLOYS COMPD

[10] Synthesis and oxidation of Ti2InC, Zr2InC, (Ti0.5,Zr0.5)2InC and (Ti0.5,Hf0.5)2InC in air [J].

Gupta, S. ;

Hoffman, E. N. ;

Barsoum, M. W. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2006, 426 (1-2) :168-175

← 1 2 3 4 →