Strength of tungsten triboride under pressure up to 86 GPa from radial X-ray diffraction
Xiong L(熊伦); Liu J(刘景); Bai LG(白利刚); Lin CL(林传龙); Xiong, L; Liu, J; Bai, LG; Lin, CL; He, DW; Zhang, XX; Lin, JF
Corresponding Author熊伦 ; 刘景
AbstractThe strength of tungsten triboride (WB3) was determined under nonhydrostatic compression up to 86 GPa using an angle-dispersive radial X-ray diffraction technique in a diamond-anvil cell (DAC). Analyze of diffraction data using lattice strain theory indicate that the ratio of differential stress to shear modulus (t/G) changes from 0.004 at ambient conditions to 0.078 at 86 GPa. Together with theoretical results on the high-pressure shear modulus, our results here show that WB3 under uniaxial compression can support a differential stress of 26 GPa when it starts to yield to the plastic deformation at 40 GPa. The yield strength of WB3 increases with increasing pressure, reaching a maximum value of 30 GPa at 77 GPa. By comparison, we find that the high-pressure strength of WB3 is comparable to those of c-BC2N, B6O, and gamma-Si3N4. (C) 2014 Published by Elsevier B.V.
KeywordTungsten triboride High pressure Strength Radial X-ray diffraction Diamond anvil cell
Subject AreaChemistry; Materials Science; Metallurgy & Metallurgical Engineering
Indexed BySCI ; EI ; CA
WOS Research AreaChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS SubjectChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000345421900019
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Xiong L,Liu J,Bai LG,et al. Strength of tungsten triboride under pressure up to 86 GPa from radial X-ray diffraction[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2015,621:116-120.
APA 熊伦.,刘景.,白利刚.,林传龙.,Xiong, L.,...&Lin, JF.(2015).Strength of tungsten triboride under pressure up to 86 GPa from radial X-ray diffraction.JOURNAL OF ALLOYS AND COMPOUNDS,621,116-120.
MLA 熊伦,et al."Strength of tungsten triboride under pressure up to 86 GPa from radial X-ray diffraction".JOURNAL OF ALLOYS AND COMPOUNDS 621(2015):116-120.
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