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Structural stability of ultra-high temperature refractory material MoSi2 and Mo5Si3 under high pressure
Liang, H; Peng, F; Fan, C; Zhang, Q; Liu, J; Guan, SX; Liu J(刘景)
2017
Source PublicationCHINESE PHYSICS B中国物理. B
ISSN1674-1056
EISSN1741-4199
Volume26Issue:5Pages:53101
SubtypeArticle
AbstractIn-situ angle dispersive x-ray diffraction (ADXRD) with synchrotron radiation source is performed on an ultra-high temperature refractory of MoSi2 and Mo5Si3 by using a diamond anvil cell (DAC) at room temperature. While the pressureinduced volume reduction is almost constant, the value of the bulk modulus increases with the decrease of molybdenum content in the system. According to the Brich-Murnaghan equation, the bulk modulus 222.1 (2.1) GPa with its pressure derivative 4 of MoSi2, and the bulk modulus 308.4 (7.6) GPa with its pressure derivative 0.7 (0.1) of Mo5Si3 are obtained. The experimental data show that MoSi2 has distinct anisotropic behavior, Mo5Si3 is less anisotropic than MoSi2. The result shows that MoSi2 and Mo5Si3 have the structural stabilities under high pressure. When the pressure reaches up to 41.1 GPa, they can still maintain their body-cantered tetragonal structures.
Keywordhigh pressure x-ray diffraction molybdenum silicide synchrotron radiation bulk modulus
DOI10.1088/1674-1056/26/5/053101
WOS KeywordSINGLE-CRYSTALS ; OXIDATION BEHAVIOR ; ELASTIC-CONSTANTS ; GERMANIUM ; BORON ; MO
Indexed BySCI ; EI ; SCOPUS ; ADS ; CSCD
Language英语
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
WOS IDWOS:000402538200001
CSCD IDCSCD:6012880
EI Accession Number20172303749590
EI KeywordsAnisotropy - Elastic moduli - Molybdenum compounds - Refractory materials - Silicides - Stability - Synchrotron radiation - Synchrotrons - X ray diffraction
EI Classification Number804 Chemical Products Generally - 812.2 Refractories - 931.2 Physical Properties of Gases, Liquids and Solids - 932.1.1 Particle Accelerators - 951 Materials Science
ADS Bibcode2017ChPhB..26e3101L
ADS URLhttps://ui.adsabs.harvard.edu/abs/2017ChPhB..26e3101L
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2017ChPhB..26e3101L/citations
Citation statistics
Cited Times:4[CSCD]   [CSCD Record]
Cited Times:4 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/284737
Collection多学科研究中心
中国科学院高能物理研究所_中国散裂中子源
Affiliation中国科学院高能物理研究所
First Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
Liang, H,Peng, F,Fan, C,et al. Structural stability of ultra-high temperature refractory material MoSi2 and Mo5Si3 under high pressure[J]. CHINESE PHYSICS B中国物理. B,2017,26(5):53101.
APA Liang, H.,Peng, F.,Fan, C.,Zhang, Q.,Liu, J.,...&刘景.(2017).Structural stability of ultra-high temperature refractory material MoSi2 and Mo5Si3 under high pressure.CHINESE PHYSICS B中国物理. B,26(5),53101.
MLA Liang, H,et al."Structural stability of ultra-high temperature refractory material MoSi2 and Mo5Si3 under high pressure".CHINESE PHYSICS B中国物理. B 26.5(2017):53101.
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