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Strength and equation of state of molybdenum triboride under 80 GPa pressure, using radial X-ray diffraction
Xiong, L; Fan, KM; Zhu, JX; Hao, JB; Wu, SY; Bai, LG; Li, XD; Liu, J; Zhang, XX; Tao, Q; Zhu, PW; Bai LG(白利刚); Li XD(李晓东); Liu J(刘景)
2017
Source PublicationHIGH PRESSURE RESEARCH
ISSN0895-7959
EISSN1477-2299
Volume37Issue:3Pages:334-344
SubtypeArticle
AbstractThe strength and equation of state of molybdenum triboride have been determined under nonhydrostatic compression up to 80GPa, using an angle-dispersive radial X-ray diffraction technique in a diamond anvil cell (DAC). The RXD data yield a bulk modulus and its pressure derivative as K-0 = 342(6)GPa with K-0' = 2.11(17) at psi = 54.7 degrees. Analysis of diffraction data using the strain theory indicates that the ratio of differential stress to shear modulus (t/G) ranges from 0.002 to 0.050 at pressures of 4-80GPa. Together with theoretical results on the high pressure shear modulus, our results here show that molybdenum triboride sample under uniaxial compression can support a differential stress of similar to 10GPa when it started to yield with plastic deformation at similar to 30GPa. In addition, we draw a conclusion that MoB3 is not a superhard material but a hard material.
KeywordStrength equation of state molybdenum triboride high pressure radial X-ray diffraction diamond anvil cell
DOI10.1080/08957959.2017.1340472
WOS KeywordCUBIC SILICON-NITRIDE ; LATTICE STRAINS ; HARDNESS
Indexed BySCI ; EI ; SCOPUS ; ADS
Language英语
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
WOS IDWOS:000406278400007
EI Accession Number20172503801895
EI KeywordsBoron compounds - Elastic moduli - High pressure engineering - Molybdenum - Molybdenum compounds - Shear strain - X ray diffraction
EI Classification Number543.3 Molybdenum and Alloys - 931.1 Mechanics - 951 Materials Science
ADS Bibcode2017HPR....37..334X
ADS URLhttps://ui.adsabs.harvard.edu/abs/2017HPR....37..334X
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2017HPR....37..334X/citations
Citation statistics
Cited Times:1 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/284780
Collection多学科研究中心
核技术应用研究中心
Affiliation中国科学院高能物理研究所
First Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
Xiong, L,Fan, KM,Zhu, JX,et al. Strength and equation of state of molybdenum triboride under 80 GPa pressure, using radial X-ray diffraction[J]. HIGH PRESSURE RESEARCH,2017,37(3):334-344.
APA Xiong, L.,Fan, KM.,Zhu, JX.,Hao, JB.,Wu, SY.,...&刘景.(2017).Strength and equation of state of molybdenum triboride under 80 GPa pressure, using radial X-ray diffraction.HIGH PRESSURE RESEARCH,37(3),334-344.
MLA Xiong, L,et al."Strength and equation of state of molybdenum triboride under 80 GPa pressure, using radial X-ray diffraction".HIGH PRESSURE RESEARCH 37.3(2017):334-344.
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